Our 2016 Kia Soul EV had it's range drop to 82 [b ]km[/b] a few weeks back. Took it to the dealer, I asked them to do a SOH on the main battery, they said they can only do that on the 12volt battery. Told them, no, you can do it on the main battery... anyways, they reset the computers, upgraded some firmware, and suddenly we had 135 km of range which I knew wouldn't last. They never did give me the SOH I asked for,
10 days later we are down to 91 km range.
Took it for a test drive with Soul Spy running and I got the reading in the images below. This was a 99 km run at highway speed. From what I can see, I have several faulty cells. Cell 1 stayed red the whole trip. It's voltage charges high and drops really low. Several cells show high when charges and lower than average on discharge.
Any opinions on what to do now? As far as the dealer was concerned, it's all ok.