I've got 2 VMAX MR137-120 12V 120AH AGM Deep Cycle Group 31 batteries for my trolling motor. Those suckers are heavy!!! Do I really have to take them out for winter. I live in New Hampshire.
I plan to disconnect the batteries. I am storing the boat near my house.
If needed, I have a NOCO Genius GEN3 30 Amp 3-Bank On-Board Battery Charger 30 amp.
I keep reading that a fully charged battery won't freeze until -72.