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SmellyCat 11-09-2018 05:29 PM

Keep blowing my solar panel controller
Hi! Here is my setup. 20watt solar panel in rear window on 1980 300d diesel Mercedes. It runs through a controller that keeps the massive diesel starting battery topped off. I've blown two solar controllers and was wondering if the massive current draw from the batterywhen I start this beasty, is somehow sucking the life out of my solar controller. They work for 3 to 6 months. When I did this rig on my super Volvo, I did not have any failures. Cheers!

SmellyCat 11-09-2018 07:50 PM

I believe that is what the controller is supposed to do. Block reverse current. I ordered another one. I'm thinking of adding a switch to Cut the controller off, when I start the car. It seems dumb. Sc

ksa8907 11-10-2018 01:14 PM

What kind of controller are you using?

We use Morningstar sunsavers at work, they work great.

Stubby79 11-10-2018 01:26 PM

Specs on the controller?

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