If you can avoid using disposable batteries then you should. Landfills are full of them and we are doing nothing more than killing our environment by using them. I know that rechargeable batteries are better, but there is always the hassle of having to recharge them and then you eventually have to toss them out as well.
When Apple recently released their desktop trackpad I was surprised to see that it was using batteries as opposed to USB power. Apparently others thought the same thing and did something about it.
Markbog over at the MacRumors.com forums did just that. He crafted together a battery size dowel and stripped down a USB cable to make it all happen.
I’m assuming the trackpad must have a voltage regulator or voltage step up since 2 AA batteries only give off 3V and the USB power spec if 5V. Either way, it seems to be working just fine for him.
Replace Batteries With USB Power originally appeared on tech.nocr.at on 2010/08/20.
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