Just looked at the charging profile of my replacement battery for the first time.
I don't charge to 100% very often and hadn't plotted this data before.
(Edit - I do have a similar plot from March 9th 2020. That one doesn't have this oddity.)
This is a 28.8A charge from 40% SOC to 100% SOC.
The battery is fully charged at 96.5% SOC. The last 3.5% of displayed SOC didn't add anything into the battery.
The BMS for a 27kWh car is built for the old battery cells, clearly it doesn't work correctly with the newer higher capacity cells.
They told me the BMS had been upgraded to cope, but is not working in this real example.
Note the energy added is equivalent to a battery capacity of 30.4kWh. It was fully charged. I haven't 'lost' anything.
The final resting voltage at 100% SOC is 397.1V
My other car a 27kWh with SOH = 96% has a final resting voltage at 100% SOC of 398.0V
The voltages are the same, the difference is that the old cells are 37.5Ah, the new cells are 40.0Ah.
(Parallel cell pairs will have 75.0Ah, and 80.0Ah.)
Also of note - a MY2018 30kWh Soul EV has a final resting voltage at 100% SOC of 410.0V
This has 100 cells, each charged to 4.10V
My car has 96 cells, each charged to 4.146V
I assume this means there is a much larger buffer on the MY2018 30kWh Soul EV than a MY2015 replacement battery 30kWh Soul EV.
The codes for using Torque Pro can be found by clicking the link in the website icon under my user name on the left.