Protection Board Selection FAQ Enhanced Safety: Safeguard your battery with protection against overcharging, overdischarging, overcurrent, short circuits, and temperature extremes. JKBMS Active Equalization extends battery life and enhances performance Easy Connection: Effortlessly manage your battery with JK BMS mobile app for Android and iOS. Bluetooth connectivity allows you to monitor status, adjust settings, and control charging/discharging from your device Wide Application: This versatile BMS works with Li-ion, LiFePO4, and LTO batteries. Ideal for RV, Solar Panel, and UPS Power Supply and so on, it offers seamless integration and top performance After-Sales Support: If you have any questions or concerns, please contact us through your order page. We are committed to providing assistance and ensuring your satisfaction with our 1-year support Packing List: Includes Smart BMS (JK-B1A8S20P-HC) * 1,Wires (70cm) * 1,Switch (50cm) * 1,NTC (40cm) * 1,CAN cable (25cm) * 1,Heating cable (16cm) * 1,Screws * 4,Operate manual * 1,(RS485 converter not included).Everything you need for setup and operation