[RedDevil]

I was looking for a fitting thread to post this, but found nothing better than this one that has been dead for 6 years...

So RAISE, ye olde thread!

Cause I got myself a small 5 Watt(ish) solar panel and attached it under the top of the trunk window, where the rear view mirror can't see it:



I wired the positive lead under the roof liner to the map lights, where there's a permanent +. The negative lead goes to the central ground just below the hatch lock catch.

I bought it cause my 12V battery is always reading below 12V if the engine does not run. I suspect one cell is mostly depleted, but the others are brimmed and prevent it from getting charged. So my panel will do that now, very gradually indeed.

I bought it at amazon.de.