Originally Posted by midnite
As far as I'm aware and concerned, batteries can be stored in a garage in winter without concern unless where you live temps commonly fall below the -10 degree range and can range below -20 and that's approaching polar temperatures.
I don't know where you live midnite, but I think your idea of how cold -10 is is exaggerated. I grew up in western NY, currently live in eastern MA. It's a rare winter that doesn't have at least one night that goes down below -10. Temps get a bit colder than that in the interior of the country. Still not the same as polar temps though, where it's way colder than that even during the day.