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Latest news of interest to engineers. Sourced from GlobalSpec's Engineering News
From Gizmodo:
There's a reason why standard batteries contain warnings for you NOT to attempt to recharge them. But, if you're either brave or cheap, here's a guide to extend regular batteries by around three...
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Or you could buy a product of the shelf to do it safely and automatically up to 25 times each battery. Also charges up rechargeable batteries too.
http://www.rezap.com.au/
Lets see the above mentioned circuit charge a battery more than say 3 times without seriously damaging it or the user.