Why buy a battery charger when you can make a solar powered one?Things you’ll need:Solar panel (I used a 3V / 250mA one)Used up rechargeable batteries (I used 1 AA and 1AAA)Mint tin (I’ll be using a herbal candy tin)Some wires1 AA battery box x 11 AAA battery box x 11N4148 diode2.5mm female plug2.5m...
By: foolishandforgetful
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from Instructables: exploring - technology - robots http://ift.tt/1IB6lEW



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