Where can I find a battery for a Maui-50 scooter?

Uh, Maui?

auto store

I sell them for $48.00 which includes shipping. I am the owner of Kryptonite Motor Bikes.

P. O. Box 1353
Washington, D.C. 20013

Any motorcycle shop will carry them.
You can check with lawn mower shops and Walmart too.

Battery's plus, Farm & Fleet, Don't pay a arm and a leg for a $20.00 battery.