Anyone in the RC community can tell you: batteries are fickle. They require special care, being charged at the right rate, and stored at a specific charge. Failure to do this degrades the battery. Failure to replace degraded batteries leads to fire.

We saw first hand what happens when you distribute high power batteries to normies when all those "hover boards" were given to normies and there were enough fires for them to be banned on planes.

Now rich assholes have ev cars, hipsters have electric bikes, and governments have electric busses. WTF did we think was going to happen?