Lithium battery protection board 3s 4S 40a 60a 18650 bms electric drill motor 11.1v 12.6v/14.8v 16.8v version enhanced balance
USD 1.23USD 2.12
Lithium battery protection board 3s 4S 40a 60a 18650 bms electric drill motor 11.1v 12.6v/14.8v 16.8v version enhanced balance