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Neexgent 4s 12v 150a Bms Lifepo4 Battery Pack With Balance And Uart Smart Bms

It is an intelligent protection board scheme specially designed for 7 series battery packs of power tools, medical batteries and other products. It is suitable for lithium batteries with different chemical properties, such as lithium ion, lithium polymer, lithium iron phosphate, etc. The protection board has strong load carrying capacity and the maximum continuous discharge current can reach 150A.   
● 4 cell series protection
● Various protection functions for charging and discharging
● Discharge over current, short circuit protection functional processes of hardware
● Over voltage, under voltage, temperature and overload protection function processing of software
● Accurate SOC calculation with automatic SOC learning function
● UART communication(External Bluetooth function)
● Hardware discharge over-current, short-circuit protection function processing

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Discharge current

100A

200A

Discharge overcurrent protection value

7~13s

Internal resistance of main circuit conduction 

10m

Charging current (same port) 

100A

 200A

Charging current protection

None

Charging voltage 

Ternary battery string number X 4.2V

LiFePO4 battery strings X 3.6V

 

Overcharge protection

Equalization voltage

Overcharge protection: Ternary 4.25±0.03V LiFe 3.75±0.05V 

Turn-on voltage: Ternary 4.0V±0.03V LiFe 3.30±0.03 V 

Protection delay time: 2000 mS

Open differential pressure: 15 mV

Recovery voltage: Ternary 4.15±0.05V  LiFe 3.60±0.05V

Equalization current: 4200mA

 

Over-discharge voltage protection

Discharge overcurrent protection

Protection voltage: Ternary 2.8±0.1 V LiFe: 2.5±0.1 V

Overcurrent protection value: 7-13s

Protection delay time: 2000 mS

Recovery condition: 32s delayed automatic recovery

Recovery voltage: Ternary 3.0±0.1V  LiFe: charge recovery

 

 

Short circuit protection

Temperature control protection

Detection delay time: 400-800 uS

Discharge high temperature protection: 90±5℃

Unload condition: disconnect the load and delay 5s to recover

Discharge high temperature lifting temperature: 70±5℃

 

Self-consumption of electricity

Operating temperature

Working power consumption: ≤20 mA

Temperature range: -30℃ / +75℃

Hibernation power consumption: ≤ 3 mA