There my "little specials":

The garage ist a little bit away from the house.
Than it is a typical german 1960ies one. Ten garages in a row with a steel concrete roof, with a special tarmac as a top layer.

To repair it is a little bit expensive, so I don't want to drill a hole for a solar in it.
And: when I'm the first, others will follow. Holes in a waterproof construction - water will find the way.

So no electric in or nearby, no solar option.

And: it's clear a 12.4V battery is not full powered by three turns around the corners. Most as possible car electric switched off, if the engine is warm turning up the revs for more power from the dyno (correct word?).

My main intention: don't be affraid about a low voltage, and enjoy every loading possibility ;-)