A regular small sized battery powered by sugar.

Inside the battery is a tiny digestive system that slowly burns the sugar and outputs a stable charge. I suppose a chemical system would be the best but am not rulling out a tiny mechanical generator. Part of the battery of course is a regular battery used as a buffer and for storage (like in a hybrid car).

The first ones will cost a mint, but the next ones will replace the current batteries that have a shelf life of 2 years.

Written after my laptop died within 3 minutes out of the charger. Arrrrrrrgh!!!
-- pashute, Jan 25 2022

Does my daughter fit the bill?
-- RayfordSteele, Jan 25 2022



random, halfbakery