Through Authenticate 
Voltage: 24V, 36V, 48V
Battery: LiMnO, DMLPF, Ternary compound.
Function: Power on/off, Speed, Max speed, Average speed, Timer, PAS level, Error code, Battery capacity, Motor current .
Characteristic: ZERO current when power off e-bike system,
Protection: Output short-cut, Power reverse connected .
Certificate: CE, RoHS, IPX5
