My Soul EV has been having three big problems since being purchased off-lease about a year ago.
The first issue is that anytime the speed goes over 60 MPH, the car pops up a warning message that says "Power limited", with a Turtle symbol appearing in the main display.
Once this message appears, it is impossible to go any faster than the current speed of about 60 MPH, even with the pedal all the way down. When I view the EV Power Consumption screen, it shows the drivetrain is only using a max of 17 kW!
The second issue is that the range on the car has fallen steadily over the last year, from somewhere around 60 miles when first purchased, to now typically under 20 miles rated range on the GOM. Suspecting battery degredation, I have read the threads on capturing CAN data to obtain the internal battery degradation values. Here is a screenshot of some of the values. I am using the iOS app OBD Fusion with a WiFi OBD reader, since I don't have access to an Android device for use with Soul Spy.
When using the formula from JejuSoul's GitHub site for calculating a State of Health %, I am coming up with a number of 70.4% SOH. Here is my math used to determine that:
- Lost SOH = 27 * ((10 - (MaxDeterioration + MinDeterioration) / 2) / 100 = -7.992 kWh
SOH in kWh = 27 + LostSOH = 19.008 kWh
SOH in % = LostSOH / 27 * 100 = 70.4%
The third issue is that when charging, the car will charge up to 100% and then shut off. At first all looks normal, but after some time has passed and you go to start the car, the display will actually show that it has only reached 78% - 80% SOC. If you plug the charge cable back in at this point, it will continue charging and then a few hours later actually complete the charging session and now be at the correct 100% SOC. This issue coupled with the reduced range has resulted in nearly being stranded once or twice now.
I am thinking that these three issues are related to severe battery degradation and/or cell failure. It is definitely looking like it would be close to being eligible for a battery replacement to me, but with the distance to the dealership, I want to be as sure as possible that my findings are accurate. It would be quite disappointing to have the car transported to Georgia, only for them to say it is within their warranty specs!