Battery Burger
The Battery Burger restores 0.5% health for each powercell spent, linking its stated health recovery to powercell spending.
How it works
The gadget description specifies restoration of 0.5% health for each Powercell spent. The listed unlock clue is to give swimming trunks to Johnny Waterfall, with the source referring readers to its Quest Items Guide for those trunks. Johnny Waterfall is described as being at the Oasis orange or secret area behind the waterfall.
Read the supporting references
A factual reference to eleven named gadgets and their reported effects, activation conditions, and unlock clues from the retrieved Gadgets passage. It does not compare effectiveness or verify behavior beyond that passage. Guidance explains the referenced mechanics; it is not a tested damage ranking. Check the stated edition and source version before applying a patch-specific detail.