3S 4S 5S 10A 21V Lithium ion Battery Pack BMS

Product Introduction

LWS® battery protection board 3S 4S 5S 10A 21V Lithium ion Battery Pack BMS to prevent the battery packs from overcharge, over discharge, over current, over temperature ,short circuit ; The following is the introduction of 3S 4S 5S 10A 21V Lithium ion Battery Pack BMS, hoping to help you better understand. Welcome new and old customers to continue to cooperate with us to create a better future!

Product Parameter (Specification)

Shenzhen Li-ion Battery Bodyguard Technology Co.,LTD
PCM Specifications  For 18.5V（5S）Li-ion Battery Packs
Itemparameter5S
Single voltage acquisition parametersNumber of strings collected±10mV25℃
Single voltage acquisition error3680mV
Single battery overchargeprotection valueSingle battery over voltage protection value2S
Single battery under voltage protection delay value3660mV
Single battery under voltage protection recovery value2200mV
Single battery under voltage protectionSingle battery over voltage protection recovery value2S
Single battery under voltage protection delay value2500mV
Single battery under voltage protection recovery valueIntelligent passive Balance
Balance functionsSystem balance working principle3200mV
Single voltage balance  start threshold35mA
Balance current30mVCell voltage
Single voltage differential balance start threshold15mV
Single voltage differential balance off threshold2
Temperature sampling and protection functionsTemperature detection points±3℃
Temperature acquisition error70℃
Battery discharge high temperature protection value5S
Battery discharge temperature protection value delay value55℃
Battery discharge high temperature protection recovery value-20℃
Battery discharge low temperature protection value5S
Battery discharge low temperature protection value delay value-0℃
Battery discharge low temperature protection recovery value60℃
Battery charge high temperature protection value5S
Battery charge high temperature protection value delay value50℃
Battery charge high temperature protection recovery value-1℃
Battery charge low temperature protection value5S
Battery charge low temperature protection value delay value5℃
Battery charge low temperature protection recovery value±5%25℃
Battery pack charge and discharge current sampling and protection functionsCurrent sampling accuracy≤0.55mΩ
Sampling resistance value12ALevel one over current protection
Battery charge over current protection value 12S
Battery charge over current protection delay value 120S
Battery charge over current protection recovery delay value 140ALevel one over current protection
Battery discharge over current protection value 12S
Battery discharge over current protection delay value 120S
Battery discharge over current protection recovery delay value 1
Battery charge over current protection value 2
Battery charge over current protection delay value 2
Battery charge over current protection recovery delay value 265Asecond level over current protection
Battery discharge over current protection value 2320mS
Battery discharge over current protection delay value 25S
Battery discharge over current protection recovery delay value 2130AAccording to the actual settings
Battery short circuit protection value 1100-500uSAccording to the actual settings
Battery short circuit protection delay value 1after disconnecting circuit 5S
Battery pack short circuit protection recovery delay value 1
Battery short circuit protection value 2
Battery short circuit protection delay value 2
Battery short circuit protection recovery delay value 2
Battery pack anti-charge protection
Battery total voltage acquisition and protection functionsBattery pack total voltage acquisition accuracy±0.5%
Battery pack load voltage acquisition accuracy±0.5%
Battery pack over voltage protection18400mV
Battery pack over voltage protection delay value30S
Battery pack over voltage protection recovery value18000mV
Battery pack under voltage protection11000mV
Battery pack under voltage protection delay value5S
Battery pack under voltage protection recovery value12500mV
Battery SOCSOC theory estimation accuracy±10%
SOC is too low alarm value10%
Power supply parametersSystem power operating range10-18.5V
Maximum charge voltage18.5V
Running state power consumption<15mA
Sleep static power consumption350UA
Communication,RS232Support
0V precharge function0V precharge functionnot support
Single set of working conditionsmaximum continuous discharge current10A
maximum continuous Charge current10A
Recommended for battery capacityAccording to the software design20Ah
Appearance1) No component damage  2) All solder are good3) PCM doesn't warp  4) Meet the shipping appearance standar

Product Feature and Application

LWS® battery protection board 3S 4S 5S 10A 21V Lithium ion Battery Pack BMS
 is used for (5S lion) high-capacity battery pack.

Product Details

3S 4S 5S 10A 21V Lithium ion Battery Pack BMS
■ Support 5S LIION Battery Pack
■ Separate monitoring of each string of cells
■ 3 groups of temperature monitoring
■ Over voltage protection (single cell, battery pack), under voltage protection (single cell, battery pack)
■ Over current protection (charge, discharge), level short circuit protection, anti-charge protection
■ Temperature protection (high temperature, low temperature)

Notes

1) Wire connection strictly according to the drawing, do not intentionally short circuit.1) Wire connection strictly according to the drawing, do not intentionally short circuit.

2) Before charged, need to connect the cables first

3) When ten groups of batteries are connected in series, ensure that the voltage of each group of batteries voltage is the same. If not, fill each group of batteries separately before connecting them in series. In discharge tests, the group of cells with the fastest voltage drop is the differential cell.