Linked by David Adams on Tue 20th Jul 2010 18:09 UTC
Hardware, Embedded Systems Japanese printer company Brother has invented a battery that can be recharged by shaking it. It's intended for devices like remote controls that use very little power and would normally require infrequent battery charges, so unfortunately you couldn't use it to power a car that could drive forever on a bumpy road.
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works with alkalines ...
by JoeBuck on Tue 20th Jul 2010 19:33 UTC
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... at least, it works a little bit. You can often squeeze a bit more use out of a "dead" alkaline battery by vigorously shaking it, it seems to work by mixing the chemicals inside. But it usually only works once, and only for a short time. Also, while I've had success squeezing a bit more life out of alkaline AA batteries this way, it doesn't seem to work at all for NiMH batteries.

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