Rik gained SoH from just charging to 100% and letting it sit.
I tried that Out as well with intersting Results:
After letting it sit:
Almost charged up, before letting it sit:
SoH didn't change, but Battery Energy and SoC did quite a bit. As you can see in the cell voltages the cells are...
I noticed completely flat voltage readings combined with wobbly SoC cell readings.
Anyone know whats going on Here? Can it be fixed?
SoC readings were flat at high SoCs though.
This is the result, quite Happy with it. Gained 2.3kWh, or 3% less "degradation".
Before:
After:
This is inbetween, how I was able to get Delta down at very low SoC:
3%:
8%:
This recovery has nothing to do with the procedure or any BMS activity, this is normal behaviour of any battery cell after being discharged. The more the load that was applied the more the "regain" of cell voltage at no load.
This regain of cell voltage appears in "more" SoC.
Thanks for the quick answer!
Mainly I am charging AC with 8kW at home in the range of 25-80% SoC. Austria has mild summers up to 33°C and mediocre winters to -6°C. I'd say less than 10% is DC charging.
I suspect highly varying SoH bc I see highly varying SoC per cell of up to 3-4% at low SoC...
Hi,
been following this issue as an Etron GT driver bc I too have low SoH and therefore also low capacity. 3yo, 25000miles, 86 SoH, 76kWh tops.
Trying to do the routine from the OP. What I did find out after letting it sit for 8h at 20% and 3% SoC, there is no rebalancing happening at these...