40A 4S Lithium Battery BMS Protection Board Component For Motor/Electric Drill

Description

Description:
4S 16.8V 40A lithium battery protection board (comes with recovery function-AUTO Recovery)
Scope: Nominal voltage of 3.7V lithium battery (including 18650,26650, polymer lithium battery)
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
Enhanced version: suitable for electric drill with starting current below 80A and power below 180W .(without balanced function)
Balanced version: suitable for electric drill with starting current below 80A and power below 230W .(with balanced charging function)
Package Includes:
1*4S 40A Li-ion Lithium Battery Protection Board
Note:
1: To successful starting the drill requires three 15C-20C power batteries, or eight 10C-15C power batteries (ordinary 18650 battery can not start the drill!!).
2: When you wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V, plese do it strictly according to the wiring diagram. Do not deliberately make it short circuit.
3: When the battery is charging,the ""430"" resistance heating is normal,it means the balance circuit is working.If the ""430"" resistance is also heating without charging,please check if the wrong wire is connected.
4: 4 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use in series. The The Discharge test, the voltage drop faster battery that group is poor battery.