If you're looking specifically for small motorcycles, you're sure to see everything else! (drive-safely.net)
I have used such power supplies on small motorcycle and jet ski batteries for many years. (mechanics.stackexchange.com)
But for the electric scooter, bike, or even small motorcycle, solar charging stations, powered by a PV system, can stand alone — and they could serve to build the property's value. (solar-estimate.org)