BMS 3S (12.6V - 40A) Lithium Battery Protection Module (Enhanced Version)

3S 40A BMS 11.1V 12.6V 18650 lithium battery protection Board for drill 40A current

Specification:

• Overvoltage range: 4.25 ~ 4.35v ± 0.05v
• Over-discharge voltage range: 2.9 ~ 3.3v±0.05v
• Maximum operating current: 0 ~ 40A
• Overcurrent protection current: 70 ~ 90A
• Quiescent current: less than 24uA
• Working temperature: -40 +85 C
• Short circuit protection: Yes, delayed self-recovery
• Size: 60mm x 41mm x 1.2mm (LxWxH)

Notes:

• Strictly according to the diagram wiring, Do not deliberately short circuit.
• After the wire is connected, it needs to charge the batteries first, then have output.
• 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 them.
• Do not mix the good battery and the battery.

It will be better the capacity of the battery internal resistance is closer.+