26inch 7 speed fat tire electric bike with middle drive motor RSEB-515

The charger is a device for replenishing the battery, and is generally divided into a two-stage charging mode and a three-stage mode. Two-stage charging mode: First, constant voltage charging, the charging current gradually decreases with the rise of the battery voltage. After the battery power is replenished to a certain extent, the battery voltage will rise to the set value of the charger, and at this time, it will be converted to trickle charging. Three-stage charging mode: When charging starts, the constant current is charged first, and the battery is quickly replenished; when the battery voltage rises, it is converted to constant voltage charging. At this time, the battery energy is slowly replenished, and the battery voltage continues to rise; the charging end voltage of the charger is reached. When the value is changed, it is switched to trickle charge to maintain the self-discharge current of the battery and the supply battery.