Description
Specifications:
- 4 string 16.8V 40A lithium battery protection board (comes with recovery function-AUTO Recovery)
- Scope: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, polymer lithium battery)
- Product weight: 9.3g (standard / enhanced version), 10.3g (balanced version)
- Charging voltage: 16.8V – 18.1V
- Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use)
- Continuous charge current (upper limit): 20A
- Equalisation version: suitable for starting current below 80A, power 135W below the drill.
- Project Min. Typ. Max. Units
- Consuming current 12 18 24 uA
- Overcharged protection voltage 4.2 4.25 4.3 V
- Balanced starting voltage 4.17 4.2 4.23 V
- Equilibrium current 95 100 105 mA
- Balanced heating power 1.56 1.72 1.91 W
- Overcharge recovery voltage 4.1 4.15 4.2 V
- Over-discharge protection voltage 2.4 2.5 2.6 V
- Overvoltage protection after over-discharge protection 2.8 3 3.2 V
- Overvoltage protection after over-discharge protection 3.2 3.5 3.8 V
- Over-discharge recovery voltage 2.9 3.2 3.3 V
- Conduction internal resistance 2.5 3 3.5 mQ
- Overcurrent protection current C 70 80 90 A
- Overcurrent delay time 100 150 200 ms
- Continuous operating current 0 40 40 A
- Continuous output power 0 672 672 W
- Ambient temperature -40 25 85 °CTroubleshooting:
- Fault phenomenon Fault check and cause The solution
- Unable to charge Measuring the voltage of 4 groups of batteries.
- If one of the battery voltages exceeds 4.25V, the protection board will activate overcharge protection.
- Pair the battery pack well, do not mix the good battery and the bad battery.
Packing List:
1 x 4S 40A 14.8V 16.8V Lipo Cell Li-ion Lithium Battery 18650 Charger PCB BMS Protection Board
