SMT-S1S30M-SMTV3.1 1 series lithium battery management system is a customized power battery management system developed by Shenzhen saimeida Electronics Co., Ltd. for 1 series lithium iron phosphate battery pack. This scheme adopts pure MCU scheme, which can realize overcharge protection, over discharge protection, over-current protection, short-circuit protection, over temperature protection and other protection functions. It also has battery residual capacity monitoring function and UART communication interface, which can communicate with other output display terminals to transfer relevant real-time data. The maximum continuous current is 30A.