Charge fridge battery without draining main battery

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Bilal Kabbani

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Hey Guys,

I have a Dometic fridge and a PLB40 in my LR4. I used to connect the PLB40 battery through the 12V plug in the back of the truck. But I had my garage create an Anderson plug underneath the back seats to keep things neat.

Problem is that I think it's drawing power directly from the main battery and it sucks power even if car isn't running (unlike the 12V plugs).

Long story short, my car battery is sucked dry and car won't start.

My question: can I create an Anderson plug that draws power only when car is running? Just like the 12V plugs?
 
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