Rest OCV % capacity remaining table

[WheezyRider]

I know this is somewhat subjective on temperature, how long the cell has rested etc, but does anyone have a reliable table of open circuit voltage at rest with % of remaining capacity for a normal Li-ion nominal 3.6/3.7V cell?

 

[vfr400]

There are loads of data on this site. Use 3.1v as the cut-off (0% charge) and count the rectangles to get the percentages.

Samsung INR18650-25R5

21-DAY FULL REFUND POLICY & AUTHENTIC GRADE-A BATTERIES GUARANTEE The 25R5 (green) is one of Samsung's newest cells and is a direct successor to the blue 25R2 (blu

batterybro.com

 

[WheezyRider]

There are loads of data on this site. Use 3.1v as the cut-off (0% charge) and count the rectangles to get the percentages.

Samsung INR18650-25R5

21-DAY FULL REFUND POLICY & AUTHENTIC GRADE-A BATTERIES GUARANTEE The 25R5 (green) is one of Samsung's newest cells and is a direct successor to the blue 25R2 (blu

batterybro.com

Thanks for that, but the curve is for a battery under load, I was looking for rest voltage data.

 

[vfr400]

Thanks for that, but the curve is for a battery under load, I was looking for rest voltage data.

You can't have a discharge chart without a load. Unloaded, the chart would be a horizontal line at 4.2v.

The chart I linked showed 5 hours to discharge a 2.5Ah battery, so the load was 0.5A, which isn't far from unloaded. If you hunt through the various manufacturers' data sheet, they normally show discharge curves for 0.2A and sometimes 0.1A., but they won't be a lot different to the one above.

 

[WheezyRider]

You can't have a discharge chart without a load. Unloaded, the chart would be a horizontal line at 4.2v.

The chart I linked showed 5 hours to discharge a 2.5Ah battery, so the load was 0.5A, which isn't far from unloaded. If you hunt through the various manufacturers' data sheet, they normally show discharge curves for 0.2A and sometimes 0.1A., but they won't be a lot different to the one above.

I was thinking along the lines of a cell that has been partially discharged, then rested and then had its OCV measured.