The Casita supplied Group 27 battery for our 2018 Freedom Deluxe lasted about 1 1/2 years. On our last extended trip out it supplied power for about a day at a time after boosting it with our Toyota Tacoma 110v-400w plug in.
It now charges up to 12.9, then drops and holds steady at about 12.3 on my bench after a couple of weeks.
I had it tested at the local Interstate dealer, and they said it had a dead cell. In researching batteries and battery care, I fear I let it discharge too far down during the dormant season.
I am tempted to replace with a AGM battery this time before we head out this summer. We mix full service campsites with boondocking up to 7 days at time depending on where we are at the time.
Casita has recommended an Interstate Group 31-AGM-7 if we upgrade.
I would like any recommendations from Casita users.
Thanks in advance.