AGM Adventures- Update
Updated 31 Jan 17 Initial results. I will re-test the AGM after it does one deep cycle to confirm these results. EDIT completed 6 Oct Test was to put the test battery as the only battery run...
Forum Discussion
After resting about 10 hrs since fully charged batt v 13.12/13, so higher resting than before the one deep cycle, but don't know what it would be after a few days. Whatever, it meets the spec for full--all good :)
So connected batt to 5er instead of its regular bank, got the spark (inverter still off) batt now 13.09/10 volts
Inverter on, ran couple things to knock down surface charge, inverter off, ready to start tests Trimetric 12.9/00.3a. Inverter on 12.9/00.8 amps
Toaster- 11.6v, 69 amps so 1.3v sag ---waited for battv to recover to 12.9/00.8a on Trimetric, then:
Kettle- 11.2/3v , 89 amps so 1.65v sag same as yesterday.
Conclusion is the single AGM can do it, but not really practical.
A. Not sure this demonstrates AGMs are all that superior in voltage sag compared with Flooded for the same AH--but this new 100AH one did the same as an older 135AH (as it is now) T-1275 (rated 150AH new)
The T-1275s have less voltage sag than the 6s, which is well-known, so the AGM does too.
B. However it is all not that big of a deal IMO for practical purposes. (sorry, full mosey!! )
Meanwhile this particular AGM is looking good as such, so it is going in the camper to live on a Float voltage, and that should be that.
I still hope Mex will answer his quiz questions as assigned, or no Gold Star for him.
So connected batt to 5er instead of its regular bank, got the spark (inverter still off) batt now 13.09/10 volts
Inverter on, ran couple things to knock down surface charge, inverter off, ready to start tests Trimetric 12.9/00.3a. Inverter on 12.9/00.8 amps
Toaster- 11.6v, 69 amps so 1.3v sag ---waited for battv to recover to 12.9/00.8a on Trimetric, then:
Kettle- 11.2/3v , 89 amps so 1.65v sag same as yesterday.
Conclusion is the single AGM can do it, but not really practical.
A. Not sure this demonstrates AGMs are all that superior in voltage sag compared with Flooded for the same AH--but this new 100AH one did the same as an older 135AH (as it is now) T-1275 (rated 150AH new)
The T-1275s have less voltage sag than the 6s, which is well-known, so the AGM does too.
B. However it is all not that big of a deal IMO for practical purposes. (sorry, full mosey!! )
Meanwhile this particular AGM is looking good as such, so it is going in the camper to live on a Float voltage, and that should be that.
I still hope Mex will answer his quiz questions as assigned, or no Gold Star for him.
