Thanks everyone for your input. I have Three (3) Cabela's Advanced AGM Series 30 batteries. The specs say they float charge at 13.6-13.8 volts and cycle service charge at 14.6-14.8 volts. I will definitely contact Best Converter and get their input so I can make the best choice for my needs. However, I would still like to know your thoughts about any impacts to my existing 12V RV components (refrigerator, Powerline Energy monitor, fans, other appliances, etc). I have a newer ProWatt SW 600 inverter and don't expect it would be a problem.
Thanks again for your help,
BZP