The basic structure of the electric bicycle

Charger of the electric bicycle
Charger is a device to supplement electric energy to the battery. It is generally divided into two-stage charging mode and three-stage mode. Two stage charging mode: first charge at constant voltage, and the charging current gradually decreases with the rise of battery voltage. After the battery power is supplemented to a certain extent, the battery voltage will rise to the set value of charger, and then it will be converted to trickle charging. Three stage charging mode: at the beginning of charging, first charge with constant current to quickly supplement energy to the battery; After the battery voltage rises, it turns to constant voltage charging. At this time, the battery energy is slowly supplemented and the battery voltage continues to rise; When the charging termination voltage of the charger is reached, it will be switched to trickle charging to maintain the battery and supply the self discharge current of the battery.

Battery of the electric bicycle
Battery is the on-board energy to provide electric vehicle energy. Electric vehicles mainly use lead-acid battery combination. In addition, NiMH batteries and lithium-ion batteries have also been used in some portable folding electric vehicles.
Tips for use: the main control board of the controller is the main circuit of the electric vehicle, which has large working current and will emit large heat. Therefore, the electric vehicle should not be parked in the sun or exposed to the rain for a long time, so as to avoid controller failure.

controller of the electric bicycle
The controller is not only the component to control the motor speed, but also the core of the electric vehicle electrical system. It has the functions of undervoltage, current limiting or overcurrent protection. The intelligent controller also has a variety of riding modes and self inspection functions of electrical components of the whole vehicle. The controller is the core component of electric vehicle energy management and various control signal processing.