BMS 3S 20A Lithium Battery Protection Board With Balance Function

3S 11.1V 20A 18650 Li-ion Lithium Battery BMS Protection PCB Board With Balance Function

Size: about 56mm*45mm*1.2mm
Over voltage range: 4.25~4.35V ± 0.05V
Over discharge voltage range: 2.3~3.0V ± 0.05V
Maximum operating current: 0~20A
Quiescent current: less than 30uA
Internal resistance: less than 100Mohm
Working temperature: -40℃ ~ +50℃
Storage condition: -40℃ ~ +80℃
Effective life: more than 30000h
Short circuit protection: Yes, delayed self recovery

Use Instruction:
1. Strictly according to the diagram wiring: 0V(B-)3.7V(B1)7.4V(B2)11.1V(B+),Do not deliberately short circuit.
2. After the wire is connected, needs to charge first, then have output.
3. When the battery is connected in series with 3 groups ,please ensure that the voltage of each battery is the same. If not the same, please fill in each set of batteries and then use.
4. Do not mix the good battery and the battery.
5. It will be better the capacity of the battery internal resistance is closer.