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
Tags：
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Discharge current |
40A(can do customized) |
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Discharge overcurrent protection value |
50A(can do customized) |
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Main circuit conduction internal resistance |
<10mQ |
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Charging current (same port) |
30A (can do customized) |
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Charging current (different port) |
No |
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Charging voltage |
li-ion battery string x4.2v, lifepo4 battery string x3.6v | |
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Overcharge protection |
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Detection voltage |
li-ion 4.25v±0.03v,lifepo4 3.65±0.03v | |
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Detection delay |
1000mS |
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Release voltage |
li-ion 4.15v±0.025v,lifepo4 3.5±0.05v | |
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Balanced voltage |
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Detection voltage |
li-ion≥4.0v, lifepo4≥3.4v |
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Equilibrium current |
50-60mA |
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Release voltage |
li-ion<4.0v , lifepo4<3.4v |
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Over discharge voltage protection |
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Detection voltage |
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Detection delay |
1000mS |
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Release voltage |
li-ion 2.9±0.1v, lifepo4 2.7±0.1v |
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Over discharge protection |
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Detection voltage |
li-ion 150mV,lifepo4 150mV |
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Detection delay |
5mS |
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Release condition |
Disconnect load, charge activation |
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Short circuit protection |
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Triggering conditions |
External load short circuit |
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Detection delay |
250uS |
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Release condition |
Disconnect load, charge activation |
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Temperature control |
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Discharge over temperature protection |
75±5℃ |
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Discharge high temperature release temperature |
60℃ |
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Self-consumption |
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Release condition |
Disconnect load, charge activation |
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Work power consumption |
<40uA |
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Sleep, over discharge |
<30uA |
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Operating temperature |
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temperature range |
(-20℃/+80℃) |
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Size |
140x60x10mm |
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