I have this scooter:
It takes those big batteries all the scooters take. I was looking at these charger packs that have a 5v lipo battery in them:
I was wondering if I could take a few of those and wire them together to be like 15 or 20 volts and hook that too the scooter? I could make it go 30+ miles I think with that much power. Would the batteries get hot or something? Would it be safe to wire them together for increased voltage? I think if I just hooked 1 to it it would go too slow, because only 5 volts.
Okay I reworded this for a more detailed example which will give me the same solution that I'm looking for.