Anyone use a solar maintainer for automobile battery?

Is this one that plugs into your cigarette lighter (or the PC term: power port) and you place the solar panel on the dash? Remember that in a lot of cars, the power port is no longer active when the ignition is off.

I used one on my '01 Dodge 2500 that might get driven twice a month. Bought it at Harbor Freight for $16. It worked for maybe 6 months. If you go that route get a good one.

I now installed a battery cut off switch at the battery. I now just disconnect it when not in use. It hasn't failed me yet!

Reminiscent of another old one:

Why do programmers often confuse Halloween with Christmas?

Because Oct 31 = Dec 25.

I thought about a cut off switch with a small connection for the clock and radio.

I already have a fused, always hot connection to a lighter. I use this for my red led dash light. I can leave my dash light on, with the key out of the ignition.