Linked (itch) (GrayMan500)

This is the source code for my game linked.

In this game you play as a Robot that relies on a power source. The only way to heal is by standing in the batteries healing field, but that will drain it. Oh, and did I mention that Enemies will be attacking you and the battery too. As you and the battery begin to take damage, is it worth draining it just a little for some extra health, or should you keep going and hope to stay alive to keep the battery alive?