Thanks Ken. In that case I might stick with the 40 amp rather than up it to a 60 amp model. While it would be really nice to have, the charge time isn't as critical for me and probably not worth my needs to run new wire from the DC panel. While I do spend full days on the hook, I don't usually overnight at anchor. The more I consider it, the more going to group 31 AGMs for increased capacity to help run the fridges makes the most sense for me and the way I use the boat. My genny is quiet and fuel efficient enough, but I often have another boat rafted on my starboard side for the day and don't like subjecting them to it for long periods so I avoid using it if anything other than my kids little 18 footer is on that side. If they're the only boat, or only one of two boats, tied up to me with the bigger one to port then running the genny isn't a problem.