Mh, my atomic battery works slightly different, though, it slowly auto-recharges instead of being a low-output infinite battery. The reason for this is that I have tools which run on batteries, the effect of using such a battery there is that you get a low-durability tool, but with auto-repair.
I could rename my battery, though. Or think of a way to make my tools work with infinite batteries.
edit: Atomic Batteries are a thing in RL, and are used, among others, for space exploration, so no wonder we both had the same idea