On Sun, 03 May 2020 19:07:06 +0100, charles wrote:

In article ,
Cursitor Doom wrote:
On Sun, 03 May 2020 12:47:32 +0100, charles wrote:

It's now 7 weeks since I used my car.

Those A4 sized solar panels are great for keeping a car battery's
charge topped-up if you make only infrequent short trips in the car.
And with just a few cheap external components you can modify the
charging current to prevent the battery getting cooked on very bright
days. Add just a few more components on top and you can fit it and
forget it - the car will always be 'on the button' no matter how long
you leave it standing.

even if it's in the shade for most of the day?

It doesn't matter if the car's parked in the shade - it's where the solar
panel is mounted that counts! :-D