On one of these two nearly identical RVs, there is a trickle solar charger already mounted on the roof. I'm guessing it is probably ~20w. It does seem to keep the batteries topped off when it sits in storage for a week or two. I feel good about that (....I hate when batteries go dead!).
At this time, I feel like I only need a modest 200w solar system on ONE of these two RVs. That way, if I know I'm going to be boondocking I'll just take the RV with the solar. From what I've read, an "average" couple boondocking might use ~30-40AH worth of battery a day (...I guess assuming you don't need a lot of heat at night). Also from what I've read, it seems like a 200w system will on average add about 60AH back to the batteries per day. So it seems like first pass 200w will probably be fine for my needs. The RVs also have a 4000w generator if I ever needed it.
To my main question...Sounds like the consensus is that there is no real difference if I put the solar system with the regular Lead Acid batteries or the AGM lead acid batteries.
The AGM batteries are more expensive and (correct me if I am wrong) a little more robust than the regular Lead Acid batteries. I think what I'll do it put the AGM batteries with the RV that has the trickle charger, and I'll put the 200w solar system with the regular Lead Acid batteries.
Thanks!
Chris
