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@DaveMWilburn@infosec.exchange

Post #3860458

2026-07-16 13:00 UTC

Is there any sort of standard/recommended way to hook up a small solar panel to a 12V car battery? My car is new enough that the 12V DC cigarette lighter plug is automatically disabled a few minutes after the car is turned off. I don't always drive it enough to keep it topped off, and I feel like a solar panel left on the dash would be a good option if it is easy to wire. Most of the consumer panels seem to either use a cigarette lighter (which I think won't work for my situation) or assume I can leave the hood open with alligator clamps hooked up (which would leave me very uncomfortable). #solarpunk #cars

Replies (1)

  • @mxf8bv@mas.to 2026-07-16 13:27

    @DaveMWilburn@infosec.exchange There are 12v lead acid battery chargers for PV that should take care of not damaging the battery. IIRC you can get them under 20 USD

    Open ##3860457