agm capacity test
I've installed 2 8d deka intimidators in my fiver. Closing in on 15 cycles. Would like to do a baseline test so I will have something to compare to in the future. What would be the proper way to prefo...
Forum Discussion
You want cross-checking for any testing, so besides cross-checking voltage against AH in any one test, you can do the recharge test above after you did the "ten hour" load test and see if you get about the same answer.
I find it all works out pretty well. When camping doing 50-90s, I can tell from the "morning voltage" 12.1 that I should be at "50%" and I can compare that with AH down from estimated capacity (temp adjusted) showing on the Trimetric. ( I don't use the Tri's % SOC dial as I believe it is bogus-being based on a capacity that is always changing with temperature.)
Then when I do the 50-90 I can check that for AH and voltages such as when it goes from constant amps and starts tapering as a marker and then when it gets down to 5amps per 110AH worth of capacity being near 90% SOC as a marker.
These all sort of match up and I can tell if anything is off-kilter. If anything doesn't match I can go looking for what's gone wrong--maybe a light left on outside or whatever.
I find it all works out pretty well. When camping doing 50-90s, I can tell from the "morning voltage" 12.1 that I should be at "50%" and I can compare that with AH down from estimated capacity (temp adjusted) showing on the Trimetric. ( I don't use the Tri's % SOC dial as I believe it is bogus-being based on a capacity that is always changing with temperature.)
Then when I do the 50-90 I can check that for AH and voltages such as when it goes from constant amps and starts tapering as a marker and then when it gets down to 5amps per 110AH worth of capacity being near 90% SOC as a marker.
These all sort of match up and I can tell if anything is off-kilter. If anything doesn't match I can go looking for what's gone wrong--maybe a light left on outside or whatever.
