Features Easy To Install: 20 series 72V 45A lithium battery protection board, equipped with 2 connecting cables, compact structure, convenient installation. Good Protection: Multiple protection functions such as overcharge, overdischarge, overcurrent and short circuit protection, safe and reliable operation. Stable Performance: Using excellent components, has strong heat dissipation, low charging and discharging temperature, to ensure stable operation. Details Display: The lithium battery protection board is directly visible from the inside to the outside, which is convenient to observe the running status. Standar Ports: The battery protection board has standard cable ports and fixing screw holes, easy to install and disassemble, has good practicability. Specification: Item Type: Battery Protection Board Power Supply Current: 45A Power Supply Voltage: 72V Power: 5W Application: Lithium battery protection Package List: 2 x Cables 1 x Battery Protection Board Package List 2 x Cables 1 x Battery Protection Board