ITEM NAME:30A BMS Protection PCB Board Li-ion Lithium Battery Protection Module Description: 3 string lithium battery protection board, 30A over-current protection, protect your lithium battery. Suitable for nominal voltage 10.8V/12.6V lithium batteries. Each item has been checked and in good.3 string lithium battery protection board, 30A over-current protection, protect your lithium battery. 1 Piece Battery Protection Board. People always bought together with. Size: Approx. Each item has been checked and in good condition.