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
jharrell wrote:
Since my charger was still putting 60 amps in at 80% SOC make me wonder if a 55 amp charger would hit absorb later or maybe be in absorb but still maxed all the way through 80%.
The lower charging rate at the same Vabs would shift the SOC at which Vabs is reached to a higher SOC. It can't be maxed and in absorption at the same time, since only when Vabs is reached, absorption starts ( amps now taper.)
Note that "Vabs is reached" means when the charger swaps over to constant voltage at that set Vabs, not when the battery reaches that voltage, which isn't until the battery is full much later.
Your Magnum may be confusing you by the term "absorb" where that refers to a place in its particular charging profile that maybe has a different voltage setting from the Vabs it gets to in "bulk"
Here is my ugly graph showing how that all works (was with Vector portable chargers on two 27s) With AGMs, just shift the absorption curve to the right somewhat (If your test is the correct proof and not the other guy's test)
