Mint Energy has developed an extremely useful concept design, that could help spell the end of dead batteries. Their Rechargeable Battery combines the battery itself, and the charching mechanism all within the standard shape of an AA battery. Half of the object is filled with a rechargeable Ni-nH battery, and the other half contains a magnet based charger, that you simply shake to charge.
[via Treehugger]
July 17, 2009
Mint Energy Batteries: Shake to Charge
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