OK, I'll correct you. Think about the battery in your car. It doesn't freeze. So long as it's fully charged, it'll be OK.
I have my trailer and mower battery in my garage, which is usually <32 degrees. I have a battery minder smart charger. I put it on one battery one week and the other battery the next week, then keep swapping until spring.
Make sure batteries are NOT sitting on "CONCRETE"!!!!!!!!!!!
Make sure batteries are NOT sitting on "CONCRETE"!!!!!!!!!!!
that hasn't been an issue for years.
It's Old Wives Tale stuff nowadays.
__________________
Dan-Retired California Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
4pt Equal-i-zer WDH and 1828lbs of payload capacity