While it may not be as entertaining as charging batteries via boomerang, the Wind Up Battery concept still brings power to what would otherwise be power-less circumstances.
One of the latest designs on Yanko comes from the designer Qian Jang. In aiming to provide a way to charge batteries sans electricity,
Using batteries to charge batteries? Apparently that’s the idea behind the Naivetek Battery Powered Battery Charger. If that’s a product that doesn’t really seem to make sense to you, you’re not alone. The name of the alleged manufacturer of this fatally flawed concept should tell you all you really need to know about the Battery [...]
Without modern rechargeable batteries, our technology landscape would look vastly different than it does now, with more power cables and outlets than we would even begin to know what to do with. As rechargeable batteries become an increasing part of our everyday lives, so do the chargers we use to replenish them.
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