I got two 100AH AGMs for the truck camper this winter and they do the job. I got the news on here that the way you can tell if they have been fully re-charged is by noting the amps they take in during the last part of the absorption stage. (No hydrometer for AGMs)
I now see that this can work, but you need an ammeter. In the 5er we have the Trimetric. A converter alone does not show the amps. I am able to get around this in the TC by using my Vector portable charger which has its own ammeter display.
BUT--what can the average RVer do with his converter and AGMs with no Trimetric?????? The typical converter will drop to Float "early" so at least he will not overcharge the AGMs, but howinheck can he ever get them properly full when he can't see how many amps they are taking in?
Is buying a Trimetric ( costs as much as another battery) a "hidden cost" for going AGM?
