Is there anyone who knows where to find a small, hideable (if possible) auxiliary battery? I've just planned out the interior and exterior of my car and I'd like to run a few things to said battery, rather than drawing from my car's battery all the time. Less worry about an inability to start up, right?

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ive heard some gel type batterys existed and that they were quite small and light, but i dont know were to find them.

This post has been edited by zoik: Feb 6, 2010 - 5:24 PM