Phone us
+86 13760978054
WE ARE AT
East of Block 9, Kidford Industrial Park, South Huabao Road, Chancheng District,Foshan City.GuangDong Province,China.
Email Us
sales1@neexgent.com
It is an intelligent protection board scheme specially designed for 3 ~ 4 series battery packs of power tools, 12V starting power supply, 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 20A.
● 3-4 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
● With UART communication
● RS485 communication with isolation
● Hardware discharge over-current, short-circuit protection function processing
Tags：
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Discharge current |
20A |
30A |
35A |
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Discharge overcurrent protection value |
30A |
40A |
45A |
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Internal resistance of main circuit conduction |
<10 mΩ |
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Charging current (same mouth) |
10A |
20A |
25A |
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Charging current (sub-port) |
None |
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Charging voltage |
Number of three battery strings X 4.2V |
Lithium iron phosphate battery pack string number X 3.6V |
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Overcharge protection |
Equalization voltage |
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Detection voltage: Ternary 4.25±0.03V LiFe 3.75±0.03V |
Detection voltage: Ternary 24.0 V LiFe 23.4V |
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Detection delay time: 1000 mS |
Dissolution voltage: ternary < 4.0V lithium iron < 3.4V |
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Discharge voltage: Ternary 415±0.025V LiFePO4 3.6±0.05V |
Equalization current: 50-60 mA |
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Over-discharge voltage protection |
Over-discharge current protection |
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Detection voltage: Ternary 2.7±0.1V LiFe 2.5±0.1V |
Detection voltage: ternary 150mV lithium iron 150mV |
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Detection delay time: 1000 mS |
Detection delay time: 5mS |
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Dissolution voltage: Ternary 2.9±0.1V LiFe 2.7±0.1V |
Release condition: disconnect load/charge activated |
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Short circuit protection |
Temperature control protection |
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Trigger condition: external load short circuit |
Discharge over temperature protection: 75+5℃ |
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Detection delay time: 25011s |
Discharge high temperature lifting temperature: 60℃ |
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Release condition: disconnect load/charge activated |
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Self-consumption of electricity |
Operating temperature |
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Release condition: disconnect load/charge activated |
Temperature range: -20℃ / +80℃ |
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Operating power consumption: < 40 uA |
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Sleep-overdischarge power consumption: < 30 uA |
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