What is the AGM Wall?
Mex described the "wall" one way, and LY describes it another way. LY quote: "My TPPL agm responds so well to the high amp recharge from a well depleted state that when I notice performance loss...
Forum Discussion
Yesterday my yardstick had the 8D 6GFM250 (250AH) tapered down to 0.7a at 14.4v before I dropped the voltage to Float. It might have gone lower with more time.
Today, my two 100AH still in parallel have stalled out at 2.0 amps. (Instead of keep going down to 1.0 amp (0.5 each) or less.) LY seems to say the lower the better. Phil says he can get his AGMs down to zero. But he is at 13.8 vs my 14.8
(There are no other 12v draws on the batts to account for the higher amps)
For these 100s, I smell a rat! I want to know more about the "wall", but also will investigate ( tomorrow) how each 100 acts individually, before I panic.
Earlier this year capacity testing (10 hours at the 20 hr rate ) showed capacity was up to "as rated" in AH. Nothing happened since then to cause any worries.
Today, my two 100AH still in parallel have stalled out at 2.0 amps. (Instead of keep going down to 1.0 amp (0.5 each) or less.) LY seems to say the lower the better. Phil says he can get his AGMs down to zero. But he is at 13.8 vs my 14.8
(There are no other 12v draws on the batts to account for the higher amps)
For these 100s, I smell a rat! I want to know more about the "wall", but also will investigate ( tomorrow) how each 100 acts individually, before I panic.
Earlier this year capacity testing (10 hours at the 20 hr rate ) showed capacity was up to "as rated" in AH. Nothing happened since then to cause any worries.
