Progressive Dynamics 9160A
In a previous discussion, I asked about shore power and someone suggested I get a charge minder for my 9160A. Well, I plugged it in and it didn't work. So I have been talking to the tech people there ...
Forum Discussion
Bluebeard wrote:
BFL- can you simplify what your comment was? I'm not familiar with what you are talking about.
OK, first graph is the basic idea of charging profiles where bulk reaches 14v and then amps taper. You see how the SOC is lower the higher the charging rate (pick your 60 above the 55 and eyball for time and SOC.)
The PowerMax goes to 14.6 so that will take longer than to 14 so the SOC should be a bit higher than shown in these graphs for 14v tripping point.
The next thing is the charging profile for a PowerMax converter (in this case a 100 amper, where it drops to 13.6 when it gets the batts to 14.6. (see that part of the combined graph on that)
So the mystery is what would happen with AGMs which have higher amperage acceptance rates, but also have higher voltages per SOC than wets? It won't be a whole bunch different, be the same general pattern, but the question is whether the 60 amper on the two AGMs can get them to 14.6 at 80% so you can do the whole 50-80 before it drops to 13.6.
Once it drops, you are in for a long generator run time to get the SOC higher than that in comparison with the shorter time had it stayed at 14.6 as its absorption voltage. I have a graph of that too for comparison , but with a 100amper on 4 batts (should be the same time as a 50 amper on two batts)
Might take a minute to figure out what is going on in these busy graphs, but it is all there.
