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
Amps passing through it charges the battery. More amps over the same time will get the battery higher. So you get to Full sooner if you use more amps for longer during the recharge.
AGMs should accept more amps at a given voltage at any given SOC.
With a current- limited, fixed voltage charger on AGMs, that would mean a longer run of its max amps to a higher SOC before hitting the absorption/taper curve.
That means the max amps is still running with the AGM past the SOC where the amps will taper with the Wet, so the AGM gets charged faster FROM THEN ON.
Note that they are charging the same with the same amps intake at first. So if you were charging with a low amp charger so that it would stay at its max amps till hitting 85% SOC with Wets, and you stopped the charge at 80% SOC (a 50-80 say) then you would not do that 50-80 any faster with AGMs instead. it would be done at the same amps either way.
jharrell's results show how his go all the way to 67% SOC using 125 amps. If you used 125 amps on the same size bank of Wets, it would not get that high in SOC before amps tapered.
The other guy's results are a puzzle, but there they are.
AGMs should accept more amps at a given voltage at any given SOC.
With a current- limited, fixed voltage charger on AGMs, that would mean a longer run of its max amps to a higher SOC before hitting the absorption/taper curve.
That means the max amps is still running with the AGM past the SOC where the amps will taper with the Wet, so the AGM gets charged faster FROM THEN ON.
Note that they are charging the same with the same amps intake at first. So if you were charging with a low amp charger so that it would stay at its max amps till hitting 85% SOC with Wets, and you stopped the charge at 80% SOC (a 50-80 say) then you would not do that 50-80 any faster with AGMs instead. it would be done at the same amps either way.
jharrell's results show how his go all the way to 67% SOC using 125 amps. If you used 125 amps on the same size bank of Wets, it would not get that high in SOC before amps tapered.
The other guy's results are a puzzle, but there they are.
