Mobility scooters come in 3 and 4 wheel configurations. There are transportable light-weight models that break down into several components, and standard scooters. Portable scooters can support up to 325 pounds and have a shorter range than standard models. Standard scooters are able to handle more weight and have a larger battery capacity. Heavy-duty scooters can accommodate users up to 500 pounds and have a wider seat and larger batteries.