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Easy battery-powered USB charge cable

 
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Alan
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Joined: 29 Jan 2006
Posts: 1399
Location: Winnipeg, MB

PostPosted: Thu May 04, 2006 10:17 pm    Post subject: Easy battery-powered USB charge cable Reply with quote

"Here's yet another way to build a battery-powered USB port. You can use it to charge your iPod or phone or lights or whatever. It should last about ten times as long as designs based on 9V batteries.

It's based around my favourite batteries of all time, AA NiMH cells. They're cheap, rechargeable, and perfectly suited to this project. I used this cable to keep my iPod charged on a bicycle tour of Victoria last year.

You'll need:

* a 4xAA battery holder
* some wire, if your battery holder doesn't come with any
* a USB socket

I got my battery holder and USB socket from Jaycar. My cable has a DC plug and socket in between the batteries and the USB socket, because I use the same battery pack to run my bike lights."

http://www.mouldy.org/node/30


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