High quality battery holder case with wire leads for easy soldering and connecting.Each battery holder comes with a case cover for keeping the battery in place

Attention: There is a specific product description on the picture, please read it in detail.

You will get;3S 40A BMS -US Charger -18650 Li-Ion Battery Holder -Pure Nickel Strip(not include batteries )

Installation: Easy and simple to use and operate, no other tools needed to install.Install the battery according to the positive and negative sides on the circuit board. Be careful not to reverse it.

Attention: Do not mix the good battery and poor battery to use. The internal resistance of 3 battery capacity are closer will be better.