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Does your iPod run out on you all the time? Well, i have a soulution for you! This USB charger utilises 2 standard cellphone batteries to charge your ...
You will need: 2 Nokia (or equivalent) Cellphone batteries 1 DPDT slider switch 1 7805 regulator 1 Small heatsink 1 Female USB connecter 1 330 O...
Here is a Schematic on the circuit.
When the switch is in the 'internal battery charge' position the 2 batteries are in parallel, so they can be charged together by the 5v power source. ...
Since the first and only one of these chargers I made is compactly glued and taped into its box I cant really go step by step putting it together with...
I mounted the Led and resistor on top of the 7805, and put this near the edge so that i could just drill a hole and poke the Led through. Before you ...
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