AGM vs Flooded Bulk Times
PT keeps asking whether AGMs will spend more time in Bulk at the same charging rate. I found a good example where that can be measured, using ah64id's test with his PD4655 on his pair of Lifeline...
Forum Discussion
MEXICOWANDERER wrote:
Total charging time 50 to 100 SOC beginning to end is significantly less with absorbed glass mat. I would have hoped the well-known lowwr internal resistance would have provided a clue. When a flooded 31 is 14.8 max amped at 50 the Lifeline is at a 100+. The charge race is unfair. AGM batteries hate 80% finish SOC. At 90 % SOC the AGM is still higher. The OPs test is skewed by throttling charge acceptance potential.
I think Mex is saying the AGMs would charge faster if you used more amps, but that can't be his point. Not sure what he means there. PT wanted to know if the AGMs would go to a higher SOC before tapering when using the SAME charging rate.
EDIT--PT, I am not posting theory in the OP. An actual real life test is given, so there it is, like it or not. You could run your own test if you wanted to :)
Mex seems to be saying they will go to a higher SOC, because they have lower R so will have a higher acceptance rate at any given SOC (so taper later) But the OP example didn't come out that way.
I tried for a side by side comparison and it seems they come out the same.
I can't tell if we are talking about the same thing here. We want apples to apples. Is that what we have? Maybe Mex can clarify?
