u/Tretragram

I have a Sol-ark 12k that I want to use near Ironwood, MI. It gets super cold up there in the winter. My place is only accessible three-seasons given snow like this year of over 17 ft. So I wanted to simply shut down the invert/batteries/and eventual solar array in late fall. I would like to use EG4 batteries. But the large hanging units are likely to be pulled and transported to modestly warmer storage. Anyone familiar with any EG4 battery and rack options what I could pull and store the batteries until spring?