【What it does】: The 3S 40A protection board can effectively prevent various problems encountered when charging the battery and avoid accidents.
【Multiple protection】: The protection board has precise overcharge protection, over discharge protection, overcurrent protection, short circuit protection and other protection functions.
【Current and voltage】: Charging voltage: DC 12.6V~13.6V;Continuous discharge current: maximum 40A (if the heat dissipation environment is not good, please reduce the load current);Continuous charging current: maximum 20A.
【Note】: Do not mix good batteries and bad batteries together, and new and old batteries can't be used together.Strictly according to the diagram wiring，0V/4.2V/8.4V/12.6V.
【Scope of application】: The protection board is suitable for lithium-ion batteries, and can also be used for ternary batteries, manganese acid batteries, and cobalt acid batteries.