Like that you have a recharge mechanic that distracts from the platforming. Could be better if you had to choose your moments where you recharge because of dangers or something. I'd also suggest a restart button... I had to refresh the browser to try again when I got stuck upside down. Nice job.
You've got some good mechanics in there!
The control you need to hold over the wheels is difficult but fun to do!
I think the battery drains way to fast though. Perhaps, when doing nothing, it could drain a tad slower.
And generating energy is a lot of work
Still, you tried making a game. Good effort!