Quote:
Originally Posted by Ryland
that pig tail is exactly that, a short cord with a plug, two eyelets and the charger plugs in to it, often used on motorcycles that have batteries in tight places and are stored for months at a time.
you might also be able to get a battery tender that would plug in to the lighter plug if that is live all the time, the battery tender should be around 1/4 to 1/2 an amp as you don't need much if it's pluged in all the time.
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That almost sounds impossible ...
A battery charger that draws power from the car only to keep the car charged. If it could work I'm in. That means no drain on my electrical bill and the car would never die.