SMT-S14S00M-SMTV3.18 is a customized protection control board for 14s electric motorcycle battery pack, relay and hall scheme according to customer requirements. This scheme adopts the pure software scheme, which can realize the basic protection functions such as overcharge protection, over discharge protection, over-current protection, temperature protection, etc., and realize the 24 V relay drive on the board; it can communicate with PC through UART to facilitate the test and modification of relevant protection parameters, and realize the data exchange with the controller through can communication interface.