Hmmmmmm , charged lead acid battery don’t freeze?
when it’s cold there is little self discharge , you can leave them cold for months .
I get snowed out of my place and have left the battery’s fully charged the day before thanks giving , and
Went up the week before Easter and my battery’s where still @ full charge so 4 months.
I use 16 golf cart battery’s the battery’s are in a insulated box and they get down to 0 some times.
there is less capacity but I use 15 % of my battery power 22hrs a day .
If I’m at the cabin charging and discharging my battery’s heat up in a few days and they stay around 50o even if it’s below 0 out side .
I just fully charge the battery’s and turn my system off when I leave .
If I have food in the freezer or frig I can just leave the system running if I want .
when it’s cold there is little self discharge , you can leave them cold for months .
I get snowed out of my place and have left the battery’s fully charged the day before thanks giving , and
Went up the week before Easter and my battery’s where still @ full charge so 4 months.
I use 16 golf cart battery’s the battery’s are in a insulated box and they get down to 0 some times.
there is less capacity but I use 15 % of my battery power 22hrs a day .
If I’m at the cabin charging and discharging my battery’s heat up in a few days and they stay around 50o even if it’s below 0 out side .
I just fully charge the battery’s and turn my system off when I leave .
If I have food in the freezer or frig I can just leave the system running if I want .