On some models, if you root them, you can cap charging to reduce the chances of that happening.

https://f-droid.org/en/packages/mattecarra.accapp/

With some phones you can set a charge limit in software at like 50%, that should pretty much solve it I believe.

You can also "just" take the battery out, it might still function without it or with something that pretends to be a battery but isn't