Evan Rodgers took a CCTV battery, a third party MacBook car charger, and some soldering tools to create a do-it-yourself external MacBook battery. As he points out in his post on The Verge, a little elbow grease and electronics know-how will save you from having to buy a costly commercial solution. You can check out his DIY video below and read his detailed instructions on The Verge's website.

This article was originally published on Tuaw.
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