•1. the latest upgrade circuit board with single cell balancing detection function can make every cell charge and discharge balance, effectively prevent overload and discharge.
•2. built-in memory chip and CPU can automatically set battery charging effect, protect battery
•3. protect property from incorrect voltage, short circui, overheating inside.
•4. high quality material case, strong and durable with shockproof design.
•5. LED light kit can know the remaining power at any time.