Built-in Bluetooth: Support Android, iphone IOS , Hongmeng APP to connect Bluetooth to view and set parameters. (APP supports English language switching). Upper computer: support computer Windows system to view, set parameters (need to buy "USB adapter for PC" separately). BMS power supply mode: Battery pack self-powered, 62-100V DC input (automatically enter low-power mode). BMS power on mode: charger charging activation, power on wire activation, communication activation. Wiring: Charge and discharge the same port design. Coulomb Meter: Adopt current integration method. Display interface: Yes. Default communication: Bluetooth - TTL. GPS interface: No. Default don't have GPS . bulk orders can be customized (need to be customized, contact us before ordering). Customizable communication: Default don't have RS485 CAN MODBUS UART (need to be customized, contact us before ordering). Electric heating module: Default don't have heating function(need to customize, contact us before ordering) Single cell voltage dropout detection: support Anti-current shock: a separate MOS absorption + TVS absorption (double absorption) Pre-charge protection: support, pre-control to avoid load capacitance is not full discharge lead to high current shock Total cycle record (AH): the accumulated value takes half of the charge and discharge value Working power consumption current (mA):