There are more fun ways to waste calories! :party:
“High Capacity battery” Really, 1500 mah. Its a great idea though.
I would be more interested if it was something like a hand cranked nitecore l2 with some sort of cover to stop the batteries from comming out while charging. 5-18v/usb/hand crank that can charge batteries or do usb out would be epic.
As it is now, I have a solar pannel that works reasonably well charging a 4x18650 box