Originally Posted by franktafl
and DSOL are the experts in this stuff along with Persistent. I recommend sending each a PM.
Hardly an expert but I do know a little--I think as Persistent (who is an expert) says you need a converter/charger specifically designed for LiPo batteries as the charging profile, while close to Lead Acid, is not the same and requires different voltage current and I believe a slightly higher resting voltage. I know my WFCO converter supports AGM and flooded batteries but does not support LiPo and I would speculate that unless it is a much newer RV that it will not support LiPo either.
My gut is that you will need to toggle a switch on your converter, if you are lucky or if not lucky will need a different one.