The issue is that the helmet probably discharges too fast. means if it should be empty it just jumps to full energy again. (and i mean really full without a health bar) instead of staying empty. meaning you never have to charge it. An initial charge of a few K eu is enough to have it running forever. While it is very convenient it is overpowered. so much killer thinks about disabling the food ability of the helmet.
That's a new issue to me. Same as the rubberboot then... shouldn't be that hard to fix it.