Some of you know my RV battery setup, that is to me at times a mystery as to why it works - especially so after reading long discussions like this one:
Just a stock Parallax converter plus engine alternator in combination, taking care of two balance-paralleled 12 volt Group 29 Interstate deep cycle AGM wheelchair batteries. The batteries are in their 8th year, yet they seemed the same as ever in Quatzsite and Western Arizona for two weeks ending last Monday. I leave the converter connected up to them all the time when the RV is at home between trips except for hot days in the summer. :h