This paper develops an energy recharging controller (ERC) for electrical scooters (ESs) which includes a recharging control unit, a battery recharging control unit, a voltage-boost control unit, a braking control unit, a motor and a battery. There are three recharging modes in the proposed ERC: low-side driving circuit recharging mode, boost recharging mode, and brake assistant mode. With the proposed energy recharging control mechanism, it is shown that mechanical energy can be efficiently converted into electrical energy for energy conservation and the controller would extend the ES's touring range. To ensure safety of the recharging system during battery recharge, a protecting circuit is developed.