Bsjoling
New Member
- Joined
- Feb 20, 2021
- Messages
- 23
I've never really understood the daly soc... I've seen it swing from 2% to 100%, it definately isn't telling me what I expect to be seeing regarding the volts... 13.00 is 30% for Lifepo4, yet the soc dial will often indicate 87%.
4s2p 200ah setup, 400ah in total, 8 cells.
I plugged in the pc and ran the sinowealth bms tool.
by setting the design & full charge capacity up to 990000mAh, it brought the soc reading down to 37% @ 13.05v, which I'm happy enough with.
However, this mornings readings show we're now down to 12.844v, which to me should be about 18%,
I've also set the
dftterCur down to 100ma. I also run a drok coulomb counter on the dash, and I would like to make sure that I can see parasitic draw, got quite alot of electronics on the RV.
Now in the pic below there is a range of soc vs volts, which look like they have been incorrectly set.... I was wondering if anyone has played with these, or figured out why they are not reading correctly? I had a little fiddle with the figures, didn't seem to move the current reading of 35%
this is my little table of soc to volts, interpolated values are utter guesstimates
adjusting the % - mV values seems to write ok, but doesn't seem to change anything.
I hope this may be of use to some of you diy pioneers, hope too that someone better experienced than I can help me resolve this mess!
Later today I'll set the soc-mV values as to what I think they should be, and put the Ah back to 400 and report my findings.
4s2p 200ah setup, 400ah in total, 8 cells.
I plugged in the pc and ran the sinowealth bms tool.
by setting the design & full charge capacity up to 990000mAh, it brought the soc reading down to 37% @ 13.05v, which I'm happy enough with.
However, this mornings readings show we're now down to 12.844v, which to me should be about 18%,
I've also set the
dftterCur down to 100ma. I also run a drok coulomb counter on the dash, and I would like to make sure that I can see parasitic draw, got quite alot of electronics on the RV.
Now in the pic below there is a range of soc vs volts, which look like they have been incorrectly set.... I was wondering if anyone has played with these, or figured out why they are not reading correctly? I had a little fiddle with the figures, didn't seem to move the current reading of 35%
this is my little table of soc to volts, interpolated values are utter guesstimates
adjusting the % - mV values seems to write ok, but doesn't seem to change anything.
I hope this may be of use to some of you diy pioneers, hope too that someone better experienced than I can help me resolve this mess!
Later today I'll set the soc-mV values as to what I think they should be, and put the Ah back to 400 and report my findings.