Forum Discussion
BFL13
Apr 19, 2021Explorer II
Yes, I did not state very well how my 10hr test is run. I actually use a 50% "marker" like SG or resting voltage /SOC or both. when I get to that marker, I note the AH count. if I hit the marker '"early" (usually happens) then if that is at 9 hours, I know the battery is 90% of its rating.
So with a brand new battery starting full, it ought to go to half its rating in 10 hrs. I would still need the marker. The flatter voltage/SOC just means being more careful to get the real resting voltage.
Running a few of these tests, you get an idea of what loaded voltage will be at the 50% marker that will bounce back after to the real resting voltage by next day. At first you can overshoot or under shoot. If you under shoot you can just restart the load, but overshooting is hard to calculate from.
So with a brand new battery starting full, it ought to go to half its rating in 10 hrs. I would still need the marker. The flatter voltage/SOC just means being more careful to get the real resting voltage.
Running a few of these tests, you get an idea of what loaded voltage will be at the 50% marker that will bounce back after to the real resting voltage by next day. At first you can overshoot or under shoot. If you under shoot you can just restart the load, but overshooting is hard to calculate from.
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