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Keep your batteries snug and warm in the winter for top electric vehicle performance!

Here's one way to build a basic battery warmer. This video covers designing and building it. The next video will show the installation and control with an external thermostat. 

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Bio: Ordinary guy with no special skills, just trying to change the world one backyard invention at a time. See more at: http://300mpg.org/ On ... More »
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