BMS 4S 40A 18650 Lithium Battery Charger Protection Board

Features:
4S 16.8V 40A 18650 lithium battery protection board (comes with recovery function-AUTO Recovery)
Integrated 10 low load resistance MOS tube, continuous discharge 40A, 100mA balanced current, for electric drill/sprayer/LED lights/low power inverter
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
Scope: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, polymer lithium battery)
Charging voltage: 16.8V – 18.1V
Balanced version: suitable for starting current below 80A, power 135W below the drill (with balance)
Board Size: approx. 46*60*3.4mm