Hungry batteries

Tokyo designer Mac Funamizu introduced a new battery concept - electric batteries. In his opinion, it would be very useful if they could, by changing the form, tell us how “hungry” they are.





The thinner the battery, the less it is charged. When it is fully charged, then it looks just like a regular battery.
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Another merit is that when the batteries are thin, they will be much easier to remove, especially if several batteries are tightly spaced nearby. A thick battery is still no need to remove.