Buying an Electric Mobility Scooter A rechargeable battery provides power to the motor, which propels the scooter forward and backwards. The majority of models have a tiller for steering that controls the throttle and brakes. Most states permit electric mobility scooters that reach a the speed limit of 30 mph, https://mobility-scooter80081.thechapblog.com/29297121/what-is-4-wheel-mobility-scooters-history-of-4-wheel-mobility-scooters