Bucketlist Trading Private Limited

Product description:

The BMS is used for li-ion battery without balancing function

Features: 

• High-accuracy voltage detection circuit;

• The terminal of the charger using a high voltage device;

• Built-in three-stage over-current detection circuit (over-current 1, over-current 2, load short circuit);

• MOS transistor can control the battery charge and discharge;

Specification:

• Charge module: Linear charging.; Charging Voltage: 8.4V to 9V

• Overcharge voltage: 4.25±0.05V

• Overcharge release voltage: 4.23±0.05V, Over-discharge voltage: 2.54±0.1V

• Maximal continuous Discharging current: 5A, Maximal continuous charging current: 7A

• Over-current protection: 5A

Additional Information:

• Item Code: BM033-2S5A
• Delivery Time: 2 - 4 days

Product Description:

A battery management system (BMS) is an electronic system that manages a rechargeable battery (cell or battery pack), such as by monitoring its state, calculating secondary data, reporting that data, protecting the battery, controlling its environment, and balancing it.

• The successful start of the drill requires three 15C-20C power battery, or six 10C-15C power battery (ordinary 18650 can not start the drill!!). 

• strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, do not deliberately short circuit. 

• When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above 25V, capacity 10uF-100uF) to the motor's positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube. 

• 3 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use it in series. In the Discharge test, the battery that has a faster voltage drop is poor battery. 

• A balanced charge is only auxiliary functions, try not to put a good battery and poor battery mixed together! 3 sets of battery capacity/resistance closer to the better! (2 good battery +1 Poor battery use effect = 3 poor battery use effect).

Additional Information:

• Item Code: BM096-3S40A-Li-ion
• Delivery Time: 2 - 4 days

Product description:

A battery management system (BMS) is any electronic system that manages a rechargeable battery (cell or battery pack), such as by monitoring its state, calculating secondary data, reporting that data, protecting the battery, controlling its environment, and balancing it.

Note 1: The successful start of the drill requires three 15C-20C power battery, or six 10C-15C power battery (ordinary 18650 can not start the drill!!).
Note 2: strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, do not deliberately short circuit.
Note 3: When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above 25V, capacity 10uF-100uF) to the motor's positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube.
Note 4: 3 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use in series. In the Discharge test, the battery that has a faster voltage drop is poor battery.
Note 5: Balanced charge is only auxiliary functions, try not to put a good battery and poor battery mixed together! 3 sets of battery capacity/resistance closer to the better! (2 good battery +1 Poor battery use effect = 3 poor battery use effect).

Specification:

• 3 string (for 3 18650 batteries or polymer lithium battery series combination) 10.8V (rated voltage for polymer battery) 11.1V (18650 or 3.7V lithium battery rated voltage) 12.6V (lithium battery is fully charged after the voltage) Overcharge detection voltage: 4.25-4.35V±0.05V, Over-discharge detection voltage: 2.3-3.0V±0.05V

• Supply Voltage: 12.6V, Over-discharge recovery voltage: 2.5v ± 0.05v, over-discharge-delay-time: 144ms

• Maximum discharge current: 10A, Maximum working current: 5A-8A, Transient current: 9A-10A, Quiescent current: <6uA

• Internal resistance: 30,000hours, Please not the board color may vary between red, blue and green based on availability.

• Short circuit protection. Overcharge protection. Over-discharge protection. Overcurrent protection. Can be applied to various 3.7V lithium core. Compact size and lightweight. Ensure the security of the battery pack.

 

Additional Information:

• Item Code: BM092-3S10A-Li-ion
• Delivery Time: 2 - 4 days

Description:

   A battery management system (BMS) is an electronic system that manages a rechargeable battery (cell or battery pack), such as by monitoring its state, calculating secondary data, reporting that data, protecting the battery, controlling its environment, and balancing it.

• Note 1: The successful start of the drill requires three 15C-20C power battery, or six 10C-15C power battery (ordinary 18650 can not start the drill!!). 

• Note 2: strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, do not deliberately short circuit. 

• Note 3: When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above 25V, capacity 10uF-100uF) to the motor's positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube. 

• Note 4: 3 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use in series. In the Discharge test, the battery that has a faster voltage drop is poor battery. 

• Note 5: Balanced charge is only auxiliary functions, try not to put a good battery and poor battery mixed together! 3 sets of battery capacity/resistance closer to the better! (2 good battery +1 Poor battery use effect = 3 poor battery use effect).

Specification:

• Suitable for 3 string 18650 batteries or polymer lithium battery series combination) 10.8V (rated voltage for polymer battery) 11.1V (18650 or 3.7V lithium battery rated voltage) 12.6V (lithium battery is fully charged after the voltage)

• Charging voltage: 12.6V - 13.6V, overcharge detection voltage :4.25±0.025V overcharge Lift the voltage:4.15±0.05V over-discharge detection voltage :2.50±0.08V over-discharge Lift the voltage:3.00±0.1V

• Continuous charge current (upper limit): 40A; Continuous discharge current (upper limit): 60A (if the cooling environment is not good, please reduce the load current use) (Natural cooling 15A, add heat sink 20A and above), Maximum instantaneous current 40A

• Internal resistance: Less than 45 m Ω, Service life: >30,000hours

• With Balancer, Short circuit protection Overcharge protection Over-discharge protection Overcurrent protection, Remove protection condition automatic recovery, without activation

Additional Information:

• Item Code: BM098-3S60A-Li-ion
• Delivery Time: 2 - 4 days

Product Description:Main Functions:

Overcharge protection, Over-discharge protection function, Short circuit protection function, Over current protection function, with band balancer

Connections:

• Step1: Connect charging/discharging wire, battery-pack negative wire

• Step2: After confirming the wires are connected OK, plug the connector cable in the BMS

• DO NOT plug CONNECTOR CABLE in the BMS before connecting wire!!

Specification:

• 16S 60V 45A Li-ion Battery BMS PCB Protection Board Continuous discharging current: 45A Instantaneous diacharge current: 100A Charging voltage: 67.2V Charging current: 45A

• Over-charge detect: 4.28±0.05V Protect delay: 100ms Over-charge release: 4.08±0.05V Detect Voltage: 4.2±0.025V Release Voltage: 4.2±0.05V

• Balance Current: 60±5mA Over-discharge: 2.55±0.08V Over-discharge detect delay: 50mS Release voltage: 2.9±0.1V Detect voltage: 150mV Detect delay: 15mS Current detect: 130±10A

• Resistance: ≤15mΩ Working current: ≤60uA Sleep Current (when Over-discharge): ≤10uA Working temperature: -30~80 deg Celsius

• Size: approx. 120 x 60 x 9mm

Additional Information:

• Item Code: BM053-16S-45A-60V
• Delivery Time: 2 - 4 days

16430 17670 18650 Lithium battery general dual mos protection board lithium battery protection board the protection board uses taiwan fu jing lithium polymer rechargeable battery protection ic. 16mm overcharge protection over discharge voltage 2.75v-4.2v.

• Safe current: 4a, maximum current: 5a-6a
• Supply voltage: 4.2v, over discharge voltage: 2.75v
• P - is the back of the board (steel)
• P+ share the same pin as b+
• Size: 16mm round shaped

Additional Information:

• Item Code: BM007-1S4A-ROUND
• Delivery Time: 2 - 4 days

1) high-accuracy voltage detection circuit; 2) terminal of the charger using high voltage device; 3) Built-in three-stage over-current detection circuit (over-current 1, over-current 2, or load short circuit); 4) MOS transistor can control the battery charge and discharge; 5) low standby current consumption.

•  4 Series 18650 battery 16.8V 16V 14.8V 4.8V (Li-ion 18650 or li-ion battery rated voltage) 16.8V (Li-ion battery full charge voltage) 14.4V ( Lipo battery pack rated voltage)
• Voltage:4.25-4.35v±0.05v over Discharge Voltage: 2.3-3.0v±0.05v Max working current:4-5A Max Peak current:6-7A
• Working Temperature:-40---+50 Storage Temperature:-40-- +80
• Small current:6uA Life cycle:50000hours
• Short circuit protection: protect and automatic recovery, over discharge protection: yes, over-current-protection: yes               

Additional Information:

• Item Code: BM081-4S6A-Li-ion
• Delivery Time: 2 - 4 days

Product Description:Specifications:

• Working current: 15A

• Operating temperature: - 40 - 50°C

• Upper limit instantaneous current: 30A

• Storage conditions: -40 - 80°C

• Quiescent current: less than 10uA

• Effective life: more than 50,000 hours

• Internal resistance: less than 300mΩ

• Charging voltage: 16.8 – 17.5V 

Welding point Description:

• B+: Connect to the battery positive

• B-: Connect to the battery negative

• VH, VM, VL: Connect to the battery joining points as shown in image

• P+: Connect to the charge/discharge side of the positive terminal

• P-: Connect to the charge/discharge side of the negative terminal

Specification:

• Number of Cells: 4 in series; For 3.7V Lithium-ion Batteries; The PCB Color may vary based on availability.

• Working current:15A (Natural cooling 10.A, add heat sink 15A); Maximum Instantaneous current 30A

• overcharge detection voltage :4.25±0.025V overcharge Lift the voltage:4.15±0.05V over discharge detection voltage :2.50±0.08V

• over discharge Lift the voltage:3.00±0.1V overcurrent current:20-30A

• Remove protection condition automatic recovery, without activation               

Additional Information:

• Item Code: BM084-4S30A-Li-ion
• Delivery Time: 2 - 4 days

A battery management system (BMS) is any electronic system that manages a rechargeable battery (cell or battery pack), such as by monitoring its state, calculating secondary data, reporting that data, protecting the battery, controlling its environment, and / or balancing it.
Specification:
Resistance Inner ≤15 mΩ; Self-Consumption Working Current:≤60 uA; Sleep Current (when Over-discharge): ≤10 uA; Working Temperature Range: -30/+80 ???
Attention When Connecting:
When we connect BMS with cells or disassemble BMS from battery pack, the following order and regulations must be complied with to avoid damage of components of BMS and problems of not protecting of cells.
In order to achieve the best performance of BMS and to run the longest distance, all the battery must be matched well (Each battery voltage ???0.05V, IR???15 mΩ, capacity???30mAh) to make sure the better consistency of the battery.
Cell must be connected in parallel first, after then connected in series.
Connection: 1. Connect charging /discharging wire, battery pack negative wire.
2. After confirm the wires are connected OK, plug the connector cable in the BMS
Do not plug connector cable in the BMS before connect wire.
Attention, ESD protection during work.
Package included: 1 x Lithium Battery Protection Board 1 x 14S Cable

•  Suitable for 14 string 18650 batteries or polymer lithium battery series combination, it has balancing function in-built
• Continuous Discharging Current: 45 A; Instantaneous Discharge Current: 120 A; Charging Voltage: 58.8 V; Charging Current: 45 A
• Overcharge Protect Over-charge Detect 4.28±0.05 V; Protect Delay 100 mS; Over-charge release 4.08±0.05 V; Balance Detect Voltage 4.2±0.025 V
• Release Voltage 4.2±0.05 V; Balance Current 60±5 mA; Over-discharge Protect Over-discharge Detect 2.55±0.08 V; Over-discharge Detect delay 50 mS; Release Voltage 2.9±0.1 V
• Over-current Protect Detect Voltage: 150 mV; Detect Delay: 15 mS; Current Detect: 130±10 A; Release Condition: Cut Load; Short-circuit Protect Protect Condition: Cut Load; Detect Delay 200 uS;               

Additional Information:

• Item Code: BM052-14S-45A-50.4V
• Delivery Time: 2 - 4 days

Product Description:

A battery management system (BMS) is an electronic system that manages a rechargeable battery (cell or battery pack), such as by monitoring its state, calculating secondary data, reporting that data, protecting the battery, controlling its environment, and/or balancing it.

• Suitable for 5 string 18650 batteries or polymer lithium battery series combination, it has to balance function in-built

• Charging Voltage: 21V; Charging current: 15A (MAX), Lampshift maximum discharge current: 15A, Instantaneous discharge current: 25A

• Overcurrent protection: 50/55/60 A; Over current protection delay: 20/25/30mS; Single section since the power consumption: 30uA; Single section between the power consumption: 3uA

• Single section overcharge detection voltage: 4.18- /4.22V; Overcharge recovery voltage 4.05- 4.15 V; Over charge detection delay: 0.5/1.0/2.0S; Single section over-discharge detection voltage: 2.75-2.85 V; Over-discharge recovery voltage: 2.90-3.20 V; Over discharge detection delay: 0.5-2.0S

• Short / over / over current protection recovery short circuit / over-discharge / over current protection after removal of load auto recovery; Short circuit protection delay 200/500/600uS; The normal working state of B- to P- resistance: 5mΩ               

Additional Information:

• Item Code: BM051-5S-15A-3.6V-liion
• Delivery Time: 2 - 4 days

Product description:

The lithium battery protection board uses a highly integrated intelligent lithium battery protection board integrated chip, the performance is better than the protective board composed of discrete chips. Can complete 5 string polymer lithium battery, ternary lithium battery, lithium iron phosphate, lithium cobalt oxide, lithium manganese oxide battery charge and discharge protection, over current, short circuit, over temperature protection and equalization function.

It adopts 4 milliohms ultra-low internal resistance MOS tube, which has low internal resistance and high efficiency. It is suitable for battery pack applications in different fields such as inverters, DC motors, power tools, and solar street lights.

Specification:

• 4 Series BMS 50A suitable for Li-ion cells connected in series not more than 4 cells, additional cells can be added in parallel

• Charging/Discharge current: 50A (Over 20A, please stack the tin-plated part of PCB or add copper wire to increase overflow);

• Single Overcharge Protection Voltage: 4.25V  ±0.025V;Single section overcharge relief voltage: 4.15V  ±0.05V;Overcharge protection delay : 1S   ±200mS;

• Single Section Over-Amplification Protection Voltage: 2.7V  ±0.05V;Single-section Over-discharge Release Voltage: 3.0V  ±0.1V; Over-discharge protection delay: 1S   ±200mS;Discharge Overcurrent Protection: 70A;Delay of discharge overcurrent protection: 100mS   ±50mS; Short circuit protection: Yes;Short circuit protection delay: 250uS  ±50uS;Short circuit protection recovery mode: Disconnecting Load and Recovering Output Voltage;

• Equilibrium Open Voltage: 4.18V  ±0.025V;Balanced current: 55mA;Broken line protection: Yes;Temperature protection: With (valid for external 10K Euro NTC resistance);Charging cryogenic protection : -7°;Charging High Temperature Protection: 50°;Discharge High Temperature Protection : 70°;

Notes:

• Please select the appropriate protection board according to the actual battery type and series connection.

• Before the protection board is installed, the battery must be matched well, and the old and new batteries cannot be mixed.

• Please remove the cable before wiring, and connect all the wires, and then confirm that the wiring is correct before plugging in the cable. When wiring, the control wiring diagram is gradually connected from the negative pole of the battery. For the thick line, please select the appropriate square wire according to the actual load current value.

• When the working current is too large, please add tin to the tinned part of the front and back of the protection board, or thicken the copper wire to increase the overcurrent capability of the circuit board.

• If you need a temperature protection function, add 10K NTC resistor (refer to the image). The factory default is no temperature protection resistor.

Additional Information:

• Item Code: BM086-4S50A-Li-ion
• Delivery Time: 2 - 4 days

A battery management system (BMS) is any electronic system that manages a rechargeable battery (cell or battery pack), such as by monitoring its state, calculating secondary data, reporting that data, protecting the battery, controlling its environment, and balancing it.

Note 1: The successful start of the drill requires three 15C-20C power battery, or six 10C-15C power battery (ordinary 18650 can not start the drill!!).
Note 2: strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, do not deliberately short circuit.
Note 3: When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above 25V, capacity 10uF-100uF) to the motor's positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube.
Note 4: 3 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use in series. In Discharge test, the battery that has faster voltage drop is poor battery.
Note 5: Balanced charge is only auxiliary functions, try not to put a good battery and poor battery mixed together! 3 sets of battery capacity / resistance closer to the better! (2 good battery +1 Poor battery use effect = 3 poor battery use effect).

• Suitable for 3 string 18650 batteries or polymer lithium battery series combination) 10.8V (rated voltage for polymer battery) 11.1V (18650 or 3.7V lithium battery rated voltage) 12.6V (lithium battery is fully charged after the voltage)
• Charging voltage: 12.6V - 13.6V, overcharge detection voltage :4.25±0.025V overcharge Lift the voltage:4.15±0.05V over discharge detection voltage :2.50±0.08V over discharge Lift the voltage:3.00±0.1V
• Continuous charge current (upper limit): 20A; Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use) (Natural cooling 15A, add heat sink 20A and above), Maximum instantaneous current 40A
• Internal resistance : Less than 45 m Ω, Service life: >30,000hours
• With Balancer, Short circuit protection Overcharge protection Over-discharge protection Overcurrent protection, Remove protection condition automatic recovery, without activation               

Additional Information:

• Item Code: BM090-3S5A-Li-ion
• Delivery Time: 2 - 4 days

A battery management system (BMS) is any electronic system that manages a rechargeable battery (cell or battery pack), such as by monitoring its state, calculating secondary data, reporting that data, protecting the battery, controlling its environment, and balancing it.

Note 1: The successful start of the drill requires three 15C-20C power battery, or six 10C-15C power battery (ordinary 18650 can not start the drill!!).
Note 2: strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, do not deliberately short circuit.
Note 3: When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above 25V, capacity 10uF-100uF) to the motor's positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube.
Note 4: 3 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use in series. In Discharge test, the battery that has faster voltage drop is poor battery.
Note 5: Do not put a good battery and poor battery mixed together! 3 sets of battery capacity / resistance closer to the better! (2 good battery +1 Poor battery use effect = 3 poor battery use effect).

Suitable for 10.8V (Rated voltage of polymer battery) 11.1V (18650 or 3.7V lithium battery rated voltage) 12.6V (Lithium battery full charge voltage)

• Suitable for 3 string 18650 batteries or polymer lithium battery series combination) 10.8V (rated voltage for polymer battery) 11.1V (18650 or 3.7V lithium battery rated voltage) 12.6V (lithium battery is fully charged after the voltage)
• Charging voltage: 12.6V - 13.6V, overcharge detection voltage :4.25±0.025V overcharge Lift the voltage:4.15±0.05V over discharge detection voltage :2.50±0.08V over discharge Lift the voltage:3.00±0.1V
• Continuous charge current (upper limit): 8A; Continuous discharge current (upper limit): 8A (if the cooling environment is not good, please reduce the load current use) (Natural cooling 6A, add heat sink 8A and above), Maximum instantaneous current 10A
• Internal resistance : Less than 45 m Ω, Service life: >30,000hours
• With Short circuit protection Overcharge protection Over-discharge protection Overcurrent protection, Remove protection condition automatic recovery, without activation               

Additional Information:

• Item Code: BM091-3S8A-Li-ion
• Delivery Time: 2 - 4 days

A battery management system (BMS) is any electronic system that manages a rechargeable battery (cell or battery pack), such as by monitoring its state, calculating secondary data, reporting that data, protecting the battery, controlling its environment, and / or balancing it.

• Suitable for 3 string 18650 batteries or polymer lithium battery series combination) 10.8V (rated voltage for polymer battery) 11.1V (18650 or 3.7V lithium battery rated voltage) 12.6V (lithium battery is fully charged after the voltage)
• Supply Voltage: 12.6V, overcharge detection voltage :4.25±0.025V overcharge Lift the voltage:4.15±0.05V over discharge detection voltage :2.50±0.08V over discharge Lift the voltage:3.00±0.1V
• working current: 15A (Natural cooling 15A, add heat sink 20A), Maximum instantaneous current 20A
• Internal resistance : Less than 45 m Ω, Service life: >30,000hours
• Short circuit protection Overcharge protection Over-discharge protection Overcurrent protection, Remove protection condition automatic recovery, without activation               

Additional Information:

• Item Code: BM093-3S20A-Li-ion
• Delivery Time: 2 - 4 days

Product description:

A battery management system (BMS) is an electronic system that manages a rechargeable battery (cell or battery pack), such as by monitoring its state, calculating secondary data, reporting that data, protecting the battery, controlling its environment, and/or balancing it. Charge and discharge using the same terminals (p+ and p-)

• Suitable for 3 string 18650 batteries or polymer lithium battery series combination) 10.8V (rated voltage for polymer battery) 11.1V (18650 or 3.7V lithium battery rated voltage) 12.6V (lithium battery is fully charged after the voltage)

• Supply Voltage: 12.6V (P+ and P-), overcharge detection voltage :4.25±0.025V overcharge Lift the voltage:4.15±0.05V over-discharge detection voltage :2.50±0.08V over-discharge Lift the voltage:3.00±0.1V

• working current: 25A (Natural cooling 10A, add heat sink 25A), Maximum instantaneous current 30A

• Internal resistance: Less than 45 m Ω, Service life: >30,000hours

• Short circuit protection Overcharge protection Over-discharge protection Overcurrent protection, Remove protection condition automatic recovery, without activation

Additional Information:

• Item Code: BM094-3S25A-Li-ion
• Delivery Time: 2 - 4 days

Product description:

• A battery management system (BMS) is an electronic system that manages a rechargeable battery (cell or battery pack), such as by monitoring its state, calculating secondary data, reporting that data, protecting the battery, controlling its environment, and balancing it.

• Note 1: The successful start of the drill requires three 15C-20C power battery, or six 10C-15C power battery (ordinary 18650 can not start the drill!!).

• Note 2: strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, do not deliberately short circuit.

• Note 3: When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above 25V, capacity 10uF-100uF) to the motor's positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube.

• Note 4: 3 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use in series. In the Discharge test, the battery that has a faster voltage drop is poor battery.

• Note 5: Balanced charge is only auxiliary functions, try not to put a good battery and poor battery mixed together! 3 sets of battery capacity/resistance closer to the better! (2 good battery +1 Poor battery use effect = 3 poor battery use effect).

Specification:

• Suitable for 3 string 18650 batteries or polymer lithium battery series combination) 10.8V (rated voltage for polymer battery) 11.1V (18650 or 3.7V lithium battery rated voltage) 12.6V (lithium battery is fully charged after the voltage)

• Charging voltage: 12.6V - 13.6V, overcharge detection voltage :4.25±0.025V overcharge Lift the voltage:4.15±0.05V over-discharge detection voltage :2.50±0.08V over-discharge Lift the voltage:3.00±0.1V

• Continuous charge current (upper limit): 20A; Continuous discharge current (upper limit): 30A (if the cooling environment is not good, please reduce the load current use) (Natural cooling 15A, add heat sink 20A and above), Maximum instantaneous current 40A

• Internal resistance: Less than 45 m Ω, Service life: >30,000hours

• With Balancer, Short circuit protection Overcharge protection Over-discharge protection Overcurrent protection, Remove protection condition automatic recovery, without activation

 

 

Additional Information:

• Item Code: BM095-3S30A-Li-ion
• Delivery Time: 2 - 4 days

Product description:

• A battery management system (BMS) is an electronic system that manages a rechargeable battery (cell or battery pack), such as by monitoring its state, calculating secondary data, reporting that data, protecting the battery, controlling its environment, and balancing it.

• This protection board adopts a mature protection circuit, original special IC, 80A high current ultra-low internal resistance MOS (single MOS internal resistance as low as 6.5mΩ), and has various stable protection and discharge protection functions.

• Strong compatibility: The protection board supports both the same port and split port. Supports 6-13 string lithium iron phosphate batteries. (Note: The lithium iron phosphate board cannot be used for lithium iron or polymer batteries)

• Default delivery: 13S (requires other strings only need to change the wiring method) Small volume and a large current can be used in high current applications such as power tools, electric vehicles, and UPS.

• NOTE: This module is only suitable for 3.2V lifepo4 or iron phosphate batteries, do not use it with lithium-ion or lithium polymer batteries

Specification:

• Suitable for 6, 7 and 13 string lithium iron phosphate lifepo4 battery series combination; Module Output Voltage: 24V @6S; 36V @ 7S 48V @ 13S; Over Discharge Protection Current: 40A; Charging Current: 18A; Charging voltage: 24V @ 6S/7S; 36V to 48V @ 13S

• Over-Charging Voltage: 4.25V; OverCharge Recovery Voltage: 4.19V; Overcharge Voltage Protection Delay: 1000ms

• Over Discharge Voltage: 2.8V; Over-discharge recovery voltage: 3V; Over-discharge voltage protection delay: 140ms

• Over-dishcarge protection current: 60A; Split Discharge Current (continuous): 26A; Same Port Discharge Current (Continuous): 18A; Overcurrent protection recovery: Disconnect load release

• With Short circuit protection Overcharge protection Over-discharge protection Overcurrent protection, Remove protection condition automatic recovery, without activation

Additional Information:

• Item Code: BM100-6S7S13S-25A-LIFEPO4
• Delivery Time: 2 - 4 days

Product Description:A battery management system (BMS) is an electronic system that manages a rechargeable battery (cell or battery pack), such as by monitoring its state, calculating secondary data, reporting that data, protecting the battery, controlling its environment, and/or balancing it.Specification:

• Resistance Inner ≤15 mΩ;

• Self-Consumption Working Current:≤60 uA;

• Sleep Current (when Over-discharge): ≤10 uA;

• Working Temperature Range: -30/+80 ???

Attention When Connecting:

• When we connect BMS with cells or disassemble BMS from the battery pack, the following order and regulations must be complied with to avoid damage of components of BMS and problems of not protecting cells.

• In order to achieve the best performance of BMS and to run the longest distance, all the battery must be matched well (Each battery voltage ???0.05V, IR???15 mΩ, capacity???30mAh) to make sure the better consistency of the battery.

• The cell must be connected in parallel first after then connected in series.

Connection: 

• Connect charging /discharging wire, battery-pack negative wire.

• After confirming the wires are connected OK, plug the connector cable in the BMS

• Do not plug connector cable in the BMS before connecting the wire.

• Attention, ESD protection during work.

Package included: 1 x Lithium Battery Protection Board 1 x 13S Cable         Specification:     

• Continuous Discharging Current: 45 A; Instantaneous Discharge Current:120 A; Charging Voltage: 54.6 V; Charging Current: 45 A

• Overcharge Protect Over-charge Detect 4.28±0.05 V; Protect Delay 100 mS; Over-charge release 4.08±0.05 V; Balance Detect Voltage 4.2±0.025 V

• Release Voltage 4.2±0.05 V; Balance Current 60±5 mA; Over-discharge Protect Over-discharge Detect 2.55±0.08 V; Over-discharge Detect delay 50 mS; Release Voltage 2.9±0.1 V

• Over-current Protect Detect Voltage: 150 mV; Detect Delay: 15 mS; Current Detect: 130±10 A; Release Condition: Cut Load; Short-circuit Protect Protect Condition: Cut Load; Detect Delay 200 uS;

Additional Information:

• Item Code: BM021-13S-48V-45A
• Delivery Time: 2 - 4 days

This is another great IIC/I2C/TWI/SPI Serial Interface. As the pin resources of FOR Arduino controller is limited, your project may be not able to use normal LCD shield after connected with a certain quantity of sensors or SD card. However, with this I2C interface module, you will be able to realize data display via only 2 wires. If you already has I2C devices in your project, this LCD module actually cost no more resources at all. It is fantastic for Arduino based project.

• LCD display module with Green/Yellow blacklight. Wide viewing angle and high contrast. I2C Interface not included only LCD Module
• Built-in industry standard HD44780 equivalent LCD controller
• LCM type: Characters
• Can display 2-lines X 16-characters. Operate with 5V DC Supply voltage, the backlight and contrast is adjusted by potentiometer come with 2 iic interface, which can be connected by dupont line or iic dedicated cable compatible for 1602 lcd
• Module dimension: 80mm x 35mm x 9mm. Viewing area size: 64.5mm x 16mm.

Additional Information:

• Item Code: AR071-1602-GREEN-5V
• Delivery Time: 2 - 4 days

Product description:

• The BMS is used for li-ion battery without balancing function

• High-accuracy voltage detection circuit;

• The terminal of the charger using a high voltage device; 

• Built-in three-stage over-current detection circuit (over-current 1, over-current 2, load short circuit);

• MOS transistor can control the battery charge and discharge;

• Charge module: Linear charging.

• Over charge voltage: 4.25±0.05V

• Over charge release voltage:4.23±0.05V, Over discharge voltage:2.54±0.1V

• Maximal continuous Discharging current: 2A, Maximal continuous charging current: 2A

• Over current protection: 3A

Additional Information:

• Item Code: BM003-1S3A-Li-ion
• Delivery Time: 2 - 4 days

A battery management system (BMS) is any electronic system that manages a rechargeable battery (cell or battery pack), such as by monitoring its state, calculating secondary data, reporting that data, protecting the battery, controlling its environment, and / or balancing it.

• Suitable for 7 string 18650 batteries or polymer lithium battery series combination, it has balancing function in-built
• Charging current: 15A (MAX), Lampshift maximum discharge current: 15A, Instantaneous discharge current: 25A
• Charging voltage: 29.4V, Overcharge detection voltage: 4.28 ± 0.05V, Overcharge release voltage: 4.08 ± 0.05V
• Overcurrent detection voltage: 150mV, Over discharge detection voltage: 2.55 ± 0.08V, overdischarge release voltage: 2.9 ± 0.1V, Short circuit detection delay: 250uS, Overcurrent protection current: 30 ± 3A, Overcurrent protection release condition: Disconnect the load, Sleep current (battery over discharge) ≤10uA
• Short circuit protection Release condition: disconnect negative open Main circuit conduction resistance: ≤20mΩ, Temperature range: -30 / + 80 °C

Additional Information:

• Item Code: BM041-7S15A-NO-HEATSINK
• Delivery Time: 2 - 4 days

Product description:

A battery management system (BMS) is an electronic system that manages a rechargeable battery (cell or battery pack), such as by monitoring its state, calculating secondary data, reporting that data, protecting the battery, controlling its environment, and/or balancing it.

Specification:

• Resistance Inner ≤15 mΩ;

• Self-Consumption Working Current:≤60 uA;

• Sleep Current (when Over-discharge): ≤10 uA;

• Working Temperature Range: -30/+80 

Attention When Connecting:

• When we connect BMS with cells or disassemble BMS from the battery pack, the following order and regulations must be complied with to avoid damage to components of BMS and problems of not protecting cells.

• In order to achieve the best performance of BMS and to run the longest distance, all the battery must be matched well (Each battery voltage ???0.05V, IR???15 mΩ, capacity???30mAh) to make sure the better consistency of the battery.

• The cell must be connected in parallel first after then connected in series.

Connection: 

• Connect charging /discharging wire, battery-pack negative wire.

• After confirming the wires are connected OK, plug the connector cable in the BMS

• Do not plug connector cable in the BMS before connecting wire.

• Attention, ESD protection during work.

Specification:

• Suitable for 14 string 18650 batteries or polymer lithium battery series combination, it has to balance function in-built

• Continuous Discharging Current: 15 A; Instantaneous Discharge Current: 25 A; Charging Voltage: 58.8 V; Charging Current: 10 A

• Overcharge Protect Over-charge Detect 4.28±0.05 V; Protect Delay 100 mS; Over-charge release 4.08±0.05 V; Balance Detect Voltage 4.2±0.025 V

• Release Voltage 4.2±0.05 V; Balance Current 60±5 mA; Over-discharge Protect Over-discharge Detect 2.55±0.08 V; Over-discharge Detect delay 50 mS; Release Voltage 2.9±0.1 V

• Over-current Protect Detect Voltage: 150 mV; Detect Delay: 15 mS; Current Detect: 130±10 A; Release Condition: Cut Load; Short-circuit Protect Protect Condition: Cut Load; Detect Delay 200 uS;

Package included: 

1 x Lithium Battery Protection Board 1 x 14S Cable

Additional Information:

• Item Code: BM024-14S-48V-15A
• Delivery Time: 2 - 4 days

A battery management system (BMS) is any electronic system that manages a rechargeable battery (cell or battery pack), such as by monitoring its state, calculating secondary data, reporting that data, protecting the battery, controlling its environment, and / or balancing it.

• Suitable for 6 string 18650 batteries or polymer lithium battery series combination) 10.8V (rated voltage for polymer battery) 11.1V (18650 or 3.7V lithium battery rated voltage) 12.6V (lithium battery is fully charged after the voltage)
• Charging current: 15A (MAX), Lampshift maximum discharge current: 15A, Instantaneous discharge current: 25A
• Charging voltage: 25.5V, Overcharge detection voltage: 4.28 ± 0.05V, Overcharge release voltage: 4.08 ± 0.05V
• Overcurrent detection voltage: 150mV, Over discharge detection voltage: 2.55 ± 0.08V, overdischarge release voltage: 2.9 ± 0.1V, Short circuit detection delay: 250uS, Overcurrent protection current: 30 ± 3A, Overcurrent protection release condition: Disconnect the load, Sleep current (battery over discharge) ≤10uA
• Short circuit protection Release condition: disconnect negative open Main circuit conduction resistance: ≤20mΩ, Temperature range: -30 / + 80 °

Additional Information:

• Item Code: BM062-6S15A-Li-ion
• Delivery Time: 2 - 4 days

Product description:

A battery management system (BMS) is an electronic system that manages a rechargeable battery (cell or battery pack), such as by monitoring its state, calculating secondary data, reporting that data, protecting the battery, controlling its environment, and/or balancing it.

Specification:

• Resistance Inner ≤15 mΩ;

• Self-Consumption Working Current:≤60 uA;

• Sleep Current (when Over-discharge): ≤10 uA;

• Working Temperature Range: -30/+80 ???

Attention When Connecting:

• When we connect BMS with cells or disassemble BMS from the battery pack, the following order and regulations must be complied with to avoid damage to components of BMS and problems of not protecting cells.

• In order to achieve the best performance of BMS and to run the longest distance, all the battery must be matched well (Each battery voltage ???0.05V, IR???15 mΩ, capacity???30mAh) to make sure the better consistency of the battery.

• The cell must be connected in parallel first after then connected in series.

Connection: 

• Connect charging /discharging wire, battery-pack negative wire.

• After confirming the wires are connected OK, plug the connector cable in the BMS

• Do not plug connector cable in the BMS before connecting the wire.

• Attention, ESD protection during work.

Specification:

• Suitable for 14 string 18650 batteries or polymer lithium battery series combination, it has to balance function in-built
• Continuous Discharging Current: 20A; Instantaneous Discharge Current: 40A; Charging Voltage: 58.8 V; Charging Current: 15A
• Overcharge Protect Over-charge Detect 4.28±0.05 V; Protect Delay 100 mS; Over-charge release 4.08±0.05 V; Balance Detect Voltage 4.2±0.025 V
• Release Voltage 4.2±0.05 V; Balance Current 60±5 mA; Over-discharge Protect Over-discharge Detect 2.55±0.08 V; Over-discharge Detect delay 50 mS; Release Voltage 2.9±0.1 V
• Over-current Protect Detect Voltage: 150 mV; Detect Delay: 15 mS; Current Detect: 130±10 A; Release Condition: Cut Load; Short-circuit Protect Protect Condition: Cut Load; Detect Delay 200 uS;

Package included:

 1 x Lithium Battery Protection Board 1 x 14S Cable

Additional Information:

• Item Code: BM022-14S-48V-20A
• Delivery Time: 2 - 4 days

Product description:

A battery management system (BMS) is an electronic system that manages a rechargeable battery (cell or battery pack), such as by monitoring its state, calculating secondary data, reporting that data, protecting the battery, controlling its environment, and/or balancing it.

Specification:

• Suitable for 7 string 18650 batteries or polymer lithium battery series combination, it has balancing function in-built

• Charging current: 20A (MAX), Lampshift maximum discharge current: 30A, Instantaneous discharge current: 30A

• Charging voltage: 29.4V, Overcharge detection voltage: 4.28 ± 0.05V, Overcharge release voltage: 4.08 ± 0.05V

• Overcurrent detection voltage: 150mV, Over discharge detection voltage: 2.55 ± 0.08V, overdischarge release voltage: 2.9 ± 0.1V, Short circuit detection delay: 250uS, Overcurrent protection current: 30 ± 3A, Overcurrent protection release condition: Disconnect the load, Sleep current (battery over discharge) ≤10uA

• Short circuit protection Release condition: disconnect negative open Main circuit conduction resistance: ≤20mΩ, Temperature range: -30 / + 80 ° C

Additional Information:

• Item Code: BM0721-24V-7S20A-NO-HEATSINK
• Delivery Time: 2 - 4 days

Product description:

• Battery shield for Arduino raspberry pi esp-32 esp8266 with Switching Booster circuit is a portable mobile power supply.

• This is a battery shield for all kinds of MCU that operate at 5V or 3.3V it can make a regulated fixed 5v and 3.3V DC voltage to run the development board easily

• You can easily install the shield on your Arduino Uno and use your other shields too

• The shield has a tiny switching power supply that can make fixed regulated 5V DC and 3.3V DC even if the batteries voltage drops down

• The shield works with 2 18650 size batteries and has an ON/OFF switch

• 5V voltage output rated current is 2.2A, maximum support 3A current (not recommended for overload, easy to damage the module, speed up the service life), the output of current depends on the quality of the 18650 battery!

• Special attention: the installation of the battery must be determined positive and negative, the board has been clearly marked positive and negative! Installation errors will burn out the module!

• NOTE: Batteries are not included, please buy them separately.

Specification:

• Charging interface: MicroUSB (Android port); Batteries NOT Included

• Charging voltage: 4.5V~5.5V; Charging current: 580mA max; Lithium Battery Model: 18650; Discharge current: 1800mA

• Output interface: 2.5mm header and standard USB socket

• 5V output current: 3A max; 3V output current: 1.0A max

• Charging indicator: red light during charging, full green light

Additional Information:

• Item Code: BS004-2S-18650-MicroUSB
• Delivery Time: 2 - 4 days

Product description:

The BMS is used for li-ion battery without balancing function

• Charge module: Linear charging.

• Overcharge voltage: 4.25±0.05V

• Overcharge release voltage:4.23±0.05V, Over-discharge voltage:2.54±0.1V

• Maximal continuous Discharging current: 15A, Maximal continuous charging current: 13A

• Overcurrent protection: 15A

Features:

• High-accuracy voltage detection circuit;

• The terminal of the charger using a high voltage device;

• Built-in three-stage over-current detection circuit (over-current 1, over-current 2, load short circuit); 

• MOS transistor can control the battery charge and discharge;

Additional Information:

• Item Code: BM005-1S15A-Li-ion
• Delivery Time: 2 - 4 days

Product description:

• The lithium battery protection board uses a highly integrated intelligent lithium battery protection board integrated chip, the performance is better than the protective board composed of discrete chips.

• Can complete 5 string polymer lithium battery, ternary lithium battery, lithium iron phosphate, lithium cobalt oxide, lithium manganese oxide battery charge, and discharge protection, over current, short circuit, over-temperature protection, and equalization function.

• It adopts a 4 milliohm ultra-low internal resistance MOS tube, which has low internal resistance and high efficiency.

• It is suitable for battery pack applications in different fields such as inverters, DC motors, power tools, and solar street lights.

Specification:

• The module operates in two modes, sample port connection and split/different port connection, refer images for connection Discharge/Charging current: 80A (same port mode) | 100A (split/different port);

• Balance Function: Yes; Balance Turn-on Voltage: 3.50V ±0.025V; Balance Current: 55mA; Power Failure Protection: Yes; Temperature Protection: Yes (valid when external 10K ohm NTC resistor is connected)

• When Discharge/Charging Current more than 30A, please add tin on the back of the PCB to increase the current pass capability.

• Single-cell Overcharge Protection Voltage: 3.75V ±0.025V; Overcharge Relieved Voltage: 3.55V ±0.05V; Overcharge Protection Delay: 1S ±200mS; Over-discharge Protection Voltage: 2.0V ±0.05V; Over-discharge Relieved Voltage: 2.7V ±0.1V; Over-discharge Protection Delay: 1S ±200mS

• Discharge Overcurrent Protection: 120A; Discharge Overcurrent Protection Delay: 100mS ±50mS; Short circuit Protection: Yes; Short circuit Protection Delay: 250uS ±50uS; Short circuit Protection Recovery Mode: Disconnect the load recovery output voltage

Notes:

• Please select the appropriate protection board according to the actual battery type and series connection.

• Before the protection board is installed, the battery must be matched well, and the old and new batteries cannot be mixed.

• Please remove the cable before wiring, and connect all the wires, and then confirm that the wiring is correct before plugging in the cable. When wiring, the control wiring diagram is gradually connected from the negative pole of the battery. For the thick line, please select the appropriate square wire according to the actual load current value.

• When the working current is too large, please add tin to the tinned part of the front and back of the protection board, or thicken the copper wire to increase the overcurrent capability of the circuit board.

• If you need a temperature protection function, add 10K NTC resistor (refer to the image). The factory default is no temperature protection resistor.

Additional Information:

• Item Code: BM053-5S-100A-80A-3.6V-liion
• Delivery Time: 2 - 4 days

Product description:

• The lithium battery protection board uses a highly integrated intelligent lithium battery protection board integrated chip, the performance is better than the protective board composed of discrete chips.

• Can complete 5 string polymer lithium battery, ternary lithium battery, lithium iron phosphate, lithium cobalt oxide, lithium manganese oxide battery charge, and discharge protection, over current, short circuit, over-temperature protection, and equalization function.

• It adopts 4 milliohms ultra-low internal resistance MOS tube, which has low internal resistance and high efficiency. It is suitable for battery pack applications in different fields such as inverters, DC motors, power tools, and solar street lights.

Notes:

• Please select the appropriate protection board according to the actual battery type and series connection.

• Before the protection board is installed, the battery must be matched well, and the old and new batteries cannot be mixed.

• Please remove the cable before wiring, and connect all the wires, and then confirm that the wiring is correct before plugging in the cable. When wiring, the control wiring diagram is gradually connected from the negative pole of the battery. For the thick line, please select the appropriate square wire according to the actual load current value.

• When the working current is too large, please add tin to the tinned part of the front and back of the protection board, or thicken the copper wire to increase the overcurrent capability of the circuit board.

• If you need a temperature protection function, add 10K NTC resistor (refer to the image). The factory default is no temperature protection resistor.

Specification:

• Suitable for 3 string 18650 batteries or polymer lithium battery series combination) 10.8V (rated voltage for polymer battery) 11.1V (18650 or 3.7V lithium battery rated voltage) 12.6V (lithium battery is fully charged after the voltage)eries combination) 10.8V (rated voltage for polymer battery) 11.1V (18650 or 3.7V lithium battery rated voltage) 12.6V (lithium battery is fully charged after the voltage); additional cells can be added in parallel

• Charging voltage: 12.6V - 13.6V, overcharge detection voltage :4.25±0.025V overcharge Lift the voltage:4.15±0.05V over discharge detection voltage :2.50±0.08V over discharge Lift the voltage:3.00±0.1V

• Continuous charge current (upper limit): 50A; (Over 20A, please stack the tin-plated part of PCB or add copper wire to increase overflow);

• Internal resistance: Less than 45 m Ω, Service life: >30,000hours

• With Balancer, Short circuit protection Overcharge protection Over-discharge protection Overcurrent protection, Remove protection condition automatic recovery, without activation

 

Additional Information:

• Item Code: BM097-3S50A-Li-ion
• Delivery Time: 2 - 4 days

The BMS is used for li-ion battery without balancing function Features: 1) high-accuracy voltage detection circuit; 2) terminal of the charger using high voltage device; 3) Built-in three-stage over-current detection circuit (over-current 1, over-current 2, load short circuit); 4) MOS transistor can control the battery charge and discharge;

• Charge module: Linear charging.
• Over charge voltage: 4.25±0.05V
• Over charge release voltage:4.23±0.05V, Over discharge voltage:2.54±0.1V
• Maximal continuous Discharging current: 5A, Maximal continuous charging current: 7A
• Over current protection: 5A               

Additional Information:

• Item Code: BM004-1S5A
• Delivery Time: 2 - 4 days

Description:

   This board is not suitable for high power electronic tools, like screwdriver and drill. above 3a device, means the battery discharge rate is more than 3c. 1c rated, 2000mah equals 2ah*1=2a max working current. 3c rated means 2ahx3=6a max working Current.

Features:

• High-accuracy voltage detection circuit; terminal of the charger using high voltage device; built-in three-stage over-current detection circuit (over-current 1, over-Current 2, or load short circuit); MOS transistor can control the battery charge and discharge; low standby current consumption.

• 4s Li-ion BMS parameters:

• overcharge voltage:4.25-4.35v ±0.05v

• over-discharge voltage: 2.3-3.0V 0.05v

• max working Current:10a

• max peak current:20A

• working temperature:-40---+50°C

• storage temperature:-40-- +80°C

• small Current:6ua

• life cycle:50000 hours

• resistance:45m

• shortcut protection: yes, change for repair

• size:35*35*3.0mm

BMS solder instruction:

b+ connected battery positive; b1 the connect point between Battery 1 and Battery 2 b2 connect the point between Battery2 and battery 3 b3 connect the point between Battery 3 and Battery 4 b- connect to Battery negative end p- + connection charge/discharge positive; p- connection charge/discharge negative 4sLi-ion 18650, licoo2, limn2o4, li(NiCoMn)o2   rechargeable batteries 4s lipo rechargeable batteries.

Specification:

• Charging voltage range:: 16.8V

• Over-discharge recovery voltage: 2.5v ± 0.05v, over-discharge-delay-time: 144ms

• Maximum Peak current: 20A, Maximum Working current: 10A, Static current: less than 8uA

• Resistance: less than 4mΩ; 4 series 18650 battery 16.8V 16V 14.8V 14.8V (Li-ion 18650 or li-ion battery rated voltage) 16.8V (Li-ion battery full charge voltage) 14.4V ( Lipo battery pack rated voltage)

• Short circuit protection: protect and automatic recovery, Over discharge protection: yes, over-current-protection: yes

Additional Information:

• Item Code: BM082-4S20A-SQUARE-Li-ion
• Delivery Time: 2 - 4 days

Description:

• This board is suitable for high power electronic tools, like screwdrivers and drills.

• The above 3A device, means the battery discharge rate is more than 3C. 1C rated battery, 2000mah equals 2ah*1=2A max working current. 3C rated battery means 2ahx3=6A Max working current.

• High-accuracy voltage detection circuit; 

• The terminal of the charger using a high voltage device;

• Built-in three-stage over-current detection circuit (over-current 1, over-current 2, or load short circuit); 4) MOS transistor can control the battery charge and discharge; 5) low standby current consumption. 4S LI-ION BMS Parameters:

Specification:

• Over Charge Voltage:4.25-4.35v±0.05v

• Over-Discharge Voltage: 2.3-3.0v±0.05v

• Max working current:20A

• Max Peak Current:40A

• Working Temperature:-40°C+50°C

• Storage Temperature:-40°C +80°C

• Small current:6uA

• Life cycle:50000hours

• Resistance:45mΩ

• Short cut Protection: yes, change for repair

• Charging voltage range:: 16.8V - 18.1V with Balancing function

• Over-discharge recovery voltage: 2.5v ± 0.05v, over-discharge-delay-time: 144ms

• Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use) Continuous charge current (upper limit): 20A Static current: less than 8uA

• Resistance: less than 4mΩ; 4 series 18650 battery 16.8V 16V 14.8V 14.8V (Li-ion 18650 or li-ion battery rated voltage) 16.8V (Li-ion battery full charge voltage) 14.4V ( Lipo battery pack rated voltage)

• Short circuit protection: protect and automatic recovery, Over-discharge protection: yes, over-current-protection: yes               

Additional Information:

• Item Code: BM085-4S40A-Li-ion
• Delivery Time: 2 - 4 days

Product description:

• This is a Li-ion Battery Charging board with Over-charging and over-discharge protection.

• The board is based on 1 x BM3451 + 4 x LR8726 chip-set. It can charge 5 li-ion cells and is not balanced.

• The BM3451 is a professional protection IC for 3/4/5 cells rechargeable battery pack; it is highly integrated, and generally used in power tools, electric bicycles, and UPS applications.

• The BM3451 works constantly to monitor each cell’s voltage, the current of charge or discharge, and the temperature of the environment to provide overcharge, over-discharge, discharge overcurrent, short circuit, charge overcurrent and over-temperature protection, etc.

• Besides, it also can change the protection delay time of overcharge, over-discharge and discharge overcurrent by setting the external capacitors.

• The BM3451 provides external bleeding for the cell-capacity balance function to avoid unbalanced capacity between each cell. Thus, the batteries can work for longer.

Specification:

• Charging voltage range:: 18.5V / 21V; Use 5 Cells in Series

• Over-discharge recovery voltage: 2.90v ± 0.08v,

• Maximum operating current: 10A, Maximum instantaneous current: 15A-20A, Static current: less than 20uA

• Resistance: less than 30mΩ

• Short circuit protection: protect and automatic recovery, balanced: No

 

Additional Information:

• Item Code: BM050-5S-10A-3.6V-liion
• Delivery Time: 2 - 4 days

This is Li-ion Battery Charging board with Over-charging and over-discharge protection. The board is based on 1 x BM3451 + 4 x LR8726 chip-set. It can charge 5 li-ion cell and is not balanced. The BM3451 is a professional protection IC for 3/4/5 cells rechargeable battery pack; it is highly integrated, and generally used in power tools, electric bicycles and UPS applications. The BM3451 works constantly to monitor each cell’s voltage, the current of charge or discharge, and the temperature of the environment to provide overcharge, over-discharge, discharge over-current, short circuit, charge overcurrent and over-temperature protections, etc. Besides, it also can change the protection delay time of overcharge, over-discharge and discharge overcurrent by setting the external capacitors. The BM3451 provides external bleeding for cell-capacity balance function to avoid unbalanced capacity between each cell. Thus, the batteries can work for longer.

• Charging voltage range:: 16.8V
• Over-discharge recovery voltage: 2.5v ± 0.05v, over-discharge-delay-time: 144ms
• Maximum operating current: 20A, Maximum instantaneous current: 20A, Static current: less than 8uA
• Resistance: less than 4mΩ
• Short circuit protection: protect and automatic recovery, Over discharge protection: yes, over-current-protection: yes

Additional Information:

• Delivery Time: 2 - 4 days

Product description:

The lithium battery protection board uses a highly integrated intelligent lithium battery protection board integrated chip, the performance is better than the protective board composed of discrete chips. Can complete 5 string polymer lithium battery, ternary lithium battery, lithium iron phosphate, lithium cobalt oxide, lithium manganese oxide battery charge, and discharge protection, over current, short circuit, over-temperature protection, and equalization function.

It adopts 4 milliohms ultra-low internal resistance MOS tube, which has low internal resistance and high efficiency. It is suitable for battery pack applications in different fields such as inverters, DC motors, power tools, and solar street lights.

Specification:

• Charging/Discharge Current: 50A (When more than 20A, please add tin on the back of the PCB to increase the current pass capability.)

• Single-cell Overcharge Protection Voltage: 4.25V ±0.025V;Single-cell Overcharge Relieved Voltage: 4.15V ±0.05V; Overcharge Protection Delay: 1S ±200mS

• Single-cell Over-discharge Protection Voltage: 2.7V ±0.05V; Single-cell Over-discharge Relieved Voltage: 3.0V ±0.1V; Over-discharge Protection Delay: 1S ±200mS

• Short circuit Protection: Yes; Short circuit Protection Delay: 250uS ±50uS; Short circuit Protection Recovery Mode: Disconnect the load recovery output voltage

• Balance Function: Yes; Balance Turn-on Voltage: 4.18V ±0.025V; Balance Current: 55mA; Power Failure Protection: Yes; Temperature Protection: Yes (valid when external 10K ohm NTC resistor is connected)

Notes:

• Please select the appropriate protection board according to the actual battery type and series connection.

• Before the protection board is installed, the battery must be matched well, and the old and new batteries cannot be mixed.

• Please remove the cable before wiring, and connect all the wires, and then confirm that the wiring is correct before plugging in the cable. When wiring, the control wiring diagram is gradually connected from the negative pole of the battery. For the thick line, please select the appropriate square wire according to the actual load current value.

• When the working current is too large, please add tin to the tinned part of the front and back of the protection board, or thicken the copper wire to increase the overcurrent capability of the circuit board.

• If you need a temperature protection function, add 10K NTC resistor (refer to the image). The factory default is no temperature protection resistor.

Additional Information:

• Item Code: BM052-5S-50A-3.6V-liion
• Delivery Time: 2 - 4 days

Description:

NOTE 1) This board is suitable for UPS, Battery bank or inverter, also suitable for high power electronic tools, like screwdrivers and drills. Features: 1) High-accuracy voltage detection circuit; 2) Terminal of the charger using high voltage device; 3) Built-in three-stage over-current detection circuit (over-current 1, over-current 2, or load short circuit); 4) MOS transistor can control the battery charge and discharge; 5) low standby current consumption.

• Charging voltage range:: 12.6V; Maximal continuous charging current: 8A

• Over-discharge recovery voltage: 2.5v ± 0.05v, over-discharge-delay-time: 144ms

• Maximum Continuous Discharging current: 100A, Maximum Working current: 100A, Max Instantaneous Discharge Current: 150A; Static current: less than 8uA;

• Short circuit protection: protect and automatic recovery, Over discharge protection: yes, over-current-protection: yes

• Refer Datasheet in Images for more information               

Additional Information:

• Item Code: BM054-3S4S-100A-12V
• Delivery Time: 2 - 4 days

A battery management system (BMS) is any electronic system that manages a rechargeable battery (cell or battery pack), such as by monitoring its state, calculating secondary data, reporting that data, protecting the battery, controlling its environment, and / or balancing it.

• Suitable for 6 string 18650 batteries or polymer lithium battery series combination) 10.8V (rated voltage for polymer battery) 11.1V (18650 or 3.7V lithium battery rated voltage) 12.6V (lithium battery is fully charged after the voltage)
• Charging current: 12A (MAX), Lampshift maximum discharge current: 12A, Instantaneous discharge current: 20A
• Charging voltage: 25.5V, Overcharge detection voltage: 4.28 ± 0.05V, Overcharge release voltage: 4.08 ± 0.05V
• Overcurrent detection voltage: 150mV, Over discharge detection voltage: 2.55 ± 0.08V, overdischarge release voltage: 2.9 ± 0.1V, Short circuit detection delay: 250uS, Overcurrent protection current: 30 ± 3A, Overcurrent protection release condition: Disconnect the load, Sleep current (battery over discharge) ≤10uA
• Short circuit protection Release condition: disconnect negative open Main circuit conduction resistance: ≤20mΩ, Temperature range: -30 / + 80 °

Additional Information:

• Item Code: BM018-6S12A-Li-ion
• Delivery Time: 2 4 days