4S 40A 16.8V BMS Li-ion Charging Balancer & Protection Module

Li-Ion 18650 battery charger module for 4 cells or 4 packets (4S) 16.8V with protection

Parameters:

Maximum continuous operating current 40 A

Instantaneous maximum 80 A.

Maximum battery charging current 20 A

Supports 4S batteries: Li-ion, LiCoO2, LiMn2O4, Li (NiCoMn) O2, Lipo

Maximum balancing current: 100 mA

Short circuit detection time: 100 us

Overcurrent overload detection time: 500 us

Detectable cell discharge voltage: 4.08V +/- 0.1V

Overcharge detection voltage per cell: 4.2V +/- 0.05V

Battery detection voltage per cell: above 2.55V +/- 0.08V

End discharge voltage per cell: 3.00 V +/- 0.1 V

Working temperature: -30 - +80 degrees C

Dimensions 55x45x4 mm

System life 50,000 h

New and used cells should not be mixed.

It is best to use cells with the same voltage, capacity and internal resistance parameters.