Battery Indicator

[cobalt2727]

Having the option to check a device's battery life in the menu the same way you would in regular RetroArch would be nice for devices that have one

[theofficialgman]

this would be very nice, luckily the folks over at batocera seem to have already implemented this in their emulationstation fork so at least you can look at that for inspiration (since the patchs won't just port over)

relevant commits are here:
batocera-linux/batocera-emulationstation@5a6d14a
batocera-linux/batocera-emulationstation@c815a12
batocera-linux/batocera-emulationstation@a4dda70

there might be more, but I think these are the main ones