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Neexgent Bms 12s 36v 30a 3.2v Lifepo4 Battery Rs485 Uart Communication Pcm Bt Wireless Protection Board Smart Bms

It is an intelligent protection board scheme specially designed for 7 ~ 10 series battery packs of power battery, electric bicycle, electric motorcycle, etc. 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 50A. At the same time, it supports 485 with isolation and UART dual communication without isolation.
● 7-10 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
● Reserved UART communication
● UART communication function, can read all data of battery in real time and upgrade online
● Hardware discharge over-current, short-circuit protection function processing

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Discharge current

40A(can do customized)

Discharge overcurrent protection value

50A(can do customized)

Main circuit conduction internal resistance


Charging current (same port)

30A (can do customized)

Charging current (different port)


Charging voltage

li-ion battery string x4.2v, lifepo4 battery string x3.6v

Overcharge protection

Detection voltage

li-ion 4.25v±0.03v,lifepo4 3.65±0.03v

Detection delay


Release voltage

li-ion 4.15v±0.025v,lifepo4 3.5±0.05v

Balanced voltage

Detection voltage

li-ion≥4.0v, lifepo4≥3.4v

Equilibrium current


Release voltage

li-ion<4.0v , lifepo4<3.4v

Over discharge voltage protection

Detection voltage

li-ion 2.7±0.1v, lifepo4 2.5±±0.1v

Detection delay


Release voltage

li-ion 2.9±0.1v, lifepo4 2.7±0.1v

Over discharge protection

Detection voltage

li-ion 150mV,lifepo4 150mV

Detection delay


Release condition

Disconnect load, charge activation

Short circuit protection

Triggering conditions

External load short circuit

Detection delay


Release condition

Disconnect load, charge activation

Temperature control

Discharge over temperature protection


Discharge high temperature release temperature



Release condition

Disconnect load, charge activation

Work power consumption


Sleep, over discharge


Operating temperature

temperature range