Originally Posted by Dijoeboss
..I checked out coach batteries, one had 136 CCAS, the other 196 CCAS...
2013 Georgetown XL 350
2002 F250 4X4 CC
2012 Jeep Liberty
You should always get the deepest cycle battery's possible. The best indication of that is to select the one with least Cold Cranking Amps (CCA)
Batteries with high CCAs have thinner plates that can even sometimes have pour out plates to generate high voltages quickly.
The problem they have is that high discharge rates say 40 to 50% rapidly kill the battery's usefull life. At some points the plates will warp, touch, and the cell is dead.
The best batteries to use for the house batteries are one designed for solar. I had a VMax Charge Tank SLR 125
on my previous camper that could tolerate up to an 80% discharge.
You really have to weigh the cost benefit though because it cost me $300 shipped. At the time, we did a lot of dry camping and seeing I only had the 1 battery and solar, it made sense.
My first instinct was to sell my new coach batteries and get Solar AGMs but I decided to forgo the $1,200 expense and just got a watering kit to take the maintenance PIA out of the equation.
When I go solar and it's time to toss those boat anchors in 5 years, I will go AGM, unless LIPO makes sense safety and cost wise. Go Tesla GIGA factory!