Researchers at the University of St. Louis have developed a tiny fuel cell that runs on sugary liquids and could repace batteries in mobile devices. They conceptualize that the cell could be reloaded with capsules containing sugar solutions but have demo-ed versions running on soft drinks!
If you could charge your phone or laptop with sugary liquids there would be nowhere in the world you couldn’t have power- although I guess pouring liquid into an electronic device has its downsides…