I have a Multiplus setup at my cabin with two AGM sealed batteries wired for 24v. I decided to remove the batteries when I winterized the cabin since I was concerned about charging when temps were below freezing. I had planned to maintenance charge them at my primary home during the winter but put it off. Now hoping I didn’t mess them up too bad and eeger to get them on a charge.
Question is can I hook them to a 12v charger in parallel while I have them off the system for winter? Or should I pick up a 24v charger to keep the batteries series charging in sync? Planning to purchase a blue smart charger as an “offline” charger but figured a 12v charger would have more purpose when not charging the cabin batteries.