OK I'll lower the bridge to fit the ship...
When it's too hot to park in the sun, it means for you. The panels can care less. Of course someone *could* insist on 135 degrees inside just because the batteries wouldn't charge if he didn't. This is referred to as prettyfartsmeller planning.
There is zero comparison between golf car battery construction and automotive battery with rope handles and weird terminals construction. I attempted to describe exactly why this is true. But once again the bridge seemingly was too high for the boat? Pull all the books on celestial mechanics and phasor algebra off the shelf?
I am a Battery Council International certified design engineer the last I checked. That should satisfy any "you designed" questions. Membership in the BCI is expensive. So I let it lapse. It wasn't paying me a nickel.
One member posted there was "no proof" that there was a difference between golf car and automotive battery lifespan. There is a pregnant pause after that statement.