Scatola porta batteria fai da te 4S 1P 2P 4P 18650 30A 60A modulo BMS senza bisogno di saldatura//
4s1p / 2p battery box There is a 15A fuse on each circuit board, if there is a problem with the battery, it will not affect other batteries. The product is only a circuit board or battery box,without batteries.