4S 40A Li-ion Lithium 18650 Battery BMS Protection Board

4S 40A Li-ion Lithium Battery 18650 Charger PCB BMS Protection Board with Balance 14.8V 16.8V Lipo / Li-ion Cell Module 4 string 16.8V 40A lithium battery protection board (comes with recovery function-AUTO Recovery)

Specifications :

• Nominal voltage : 3.6V, 3.7V
• Capable Lithium battery : 18650, 26650, (Lipo) lithium polymer battery
• Product Size: 46 * 60 * 3.4mm
• Product weight: 10.3g
• 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

Notes :

• Note 1 : The successful start of the drill requires three 15C-20C power battery, or six 10C-15C power battery
• Note 2 : strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V, do not deliberately short circuit.
• Note 3 : 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.