Is it the outlet, or could it be the charging cords that's acting funky?

Does the outlet have a GFI (Ground Fault Interrupter) switch on it? It's a little button between the upper outlet and the lower outlet. If the button is sticking out, the GFI might have been tripped. (we done that by accidentally bumping the test button for the GFI) Just push the button back and that should reset the GFI.

If it's the cord, you might have to get a new cord. A friend of mine used to work for The Scooter Store. She told me once that you can use the power cord to a laptop, or a newer sewing machine as long as the ends match. (but dont quote me on that, call the people you got the scooter from and ask)