Yes, the VMAX battery has the same float voltage recommendation. Unfortunately, that’s not adjustable on the Redarc. Same float voltage regardless of the charging profile, except for Lithium which is 13.6. But, since I’m actively using the battery while we’re driving, the Redarc isn’t what’s controlling the float voltage of the camper battery most of the time. The Progressive Dynamics PD4645 handles that when the camper is at home in my garage.
But.......(there’s always a “but”) the PD4645 float voltage is 13.2, and it’s not adjustable either. It’s 15 minute 14.4 volt equalizing mode every 21 hours apparently isn’t enough to keep the battery 100%, so the Trimetric shows some capacity loss over several weeks. I have the Trimetric configured to remind me to push the “boost” button on the PD4645 every 3-4 weeks.
I’ll let everyone know how long this VMAX battery lasts for me because I don’t think there are many here who have one. It meets my needs, it’s a few months over five years old, and if it were to go casters up tomorrow I’d buy another one. Trojan group 31 deep cycle batteries weren’t cheap, and I had to pay more attention to them.
If I were going to spend any more money improving my camper battery’s charging system, it would be to replace the PD4645 with something that’s adjustable. I’m not sure what that would be right now, because there are some size constraints I have to consider.
:):)
