I just don't understand how the Pipboy, marvel that it is, can be used week after week, and even as a flashlight (which I would assume would drain even more power) and never run into battery issues. I'd assume managing the inventory would be low-drain, but operating the radio has to drain some power, the built in GPS likely as well, the flashlight, so on.
It just occurred to me that I've never seen lore or mods that addressed that particular issue. Anyone got any thoughts on it?