Buying an Electric Mobility Scooter A rechargeable battery supplies power to the motor which propels the scooter forward and in reverse. The majority of models have an adjustable tiller, which regulates the throttle and brakes. Most states permit electric mobility scooters to reach a the speed limit of 30 mph, https://mobile-mobility-scooters01099.amoblog.com/this-is-what-4-wheel-mobility-scooters-will-look-in-10-years-time-51682980