MULTIPLE PROTECTION Bisida's BMS has a variety of protection functions, such as over charge protection, over discharge protection, over current protection, short-circuit protection, temperature protection, Downtime protection，Voltage balance(passive balance), etc. OPERATING TEMPERATURE Bisida's BMS supports (3.2V) Lifepo4 battery charging and discharging in zones from 2.3V to 3.65V, with low temperature protection up to -20°C and high temperature protection up to 70°C. Different voltages and currents have different parameter details. Confirmation required. NOTICE Before installing the BMS protective board, it is necessary to match the voltage, capacity, and internal resistance (the voltage difference between the battery per section is not higher than 0.05V, the difference between the internal resistance is not more than 5MΩ, and the capacity difference is less than 30mAh). Otherwise the battery pack will not be able to charge. WIRING METHOD The wiring methods of common ports of BMS: B- connection battery pack negative , C- connection charging negative/output negative. All the positive electrodes are the total positive pole from the battery pack. EXCELLENT SOLUTION Bisida's BMS is manufactured using excellent protective integrated circuit IC and excellent Mosfet, making it robust, long-lasting and reliable Product size: 65mm*125mm*10mm  Voltage Value: 76.8V Charger  Voltage:86.4V  Working Current: 50A  Charging current: Recommended below 5A  Temperature protection: -20 ~ 70 ℃  Applicable Battery: 3.2V Lifepo4 Battery (Single Cell)  Instantaneous CurrenT: 3 to 5 Times the working current.  Package Contents: Battery Protection Board*1 Cable*1