It's astonishing how anti-modular various industries are. Even batteries, which for all their "oh no gonna blow" are really quite simple components. But why are cars not modular? How about HVAC? Housing is pretty modular.
These home made ebike batteries regularly catch fire and burn down apartments. Quite a lot of apartments in Australia are banning taking ebikes inside now.
Regularly? That means that some nontrivial fraction are guaranteed to burn. I think you mean that it happens at low probability but is eagerly covered by media.
In any case, the fault is almost certainly either physical abuse (which has nothing to do with accessibility/modularity) or simply bad chargers (which better access would actually mitigate).
It's astonishing how anti-modular various industries are. Even batteries, which for all their "oh no gonna blow" are really quite simple components. But why are cars not modular? How about HVAC? Housing is pretty modular.