It is an intelligent protection board scheme specially designed for 4 series battery packs of power tools and energy storage 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 60A.
● 4 cell series protection
● Various protection functions for charging and discharging
● Hardware discharge over - current, short - circuit protection function processing
● Reserved temperature protection function
● Very low static consumption current
● Balance function
Tags:
Discharge current |
10A |
15A |
20A |
Discharge overcurrent protection value |
3-5 times of continuous current |
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Internal resistance of main circuit conduction |
< 20 mΩ |
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Charging current (same mouth) |
5A |
10A |
15A |
Charging current (sub-port) |
None |
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Charging voltage |
Number of ternary battery strings X 4.2V |
Overcharge protection |
Equalization voltage (optional) |
Detection voltage: Ternary 4.25±0.025V |
Detection voltage: ternary 24.18V |
Detection delay time: 1000 mS |
Unwinding voltage: Ternary < 4.18V |
Unwinding voltage: Ternary 4.13±0.05V |
Equalization current: 20-30 mA |
Over-discharge voltage protection |
Over-discharge current protection |
Detection voltage: Ternary 2.8±0.1V |
Detection voltage: ternary 100mV |
Detection delay time: 1000 mS |
Detection delay time: 100mS |
Unwinding voltage: ternary 3.0±0.1 V |
Release condition: disconnect load/charge activated |
Short circuit protection |
Temperature control protection (optional) |
Trigger condition: external load short circuit |
Discharge over temperature protection: 75±5℃ |
Detection delay time: 300 uS |
Discharge high temperature lifting temperature: 60℃ |
Release condition: disconnect load/charge activated |
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Self-consumption of electricity |
Self-consumption operating temperature |
Release condition: disconnect load/charge activated |
Temperature range: -20℃ / ±80℃ |
Operating power consumption: < 40 uA |
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Sleep-overdischarge power consumption: < 30 M |
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