I’d suggest just using the car as normal today and see if the readings adjust on their own. If not, try a Level 2 or 3 charger tonight and see if that normalizes the readings. If it persists, definitely consider a service visit.
It sounds like a voltage misreading from the onboard computer. It’s unusual, but not a major concern yet. However, if this recurs, it would be wise to have it checked to ensure there isn’t a deeper issue.
What’s the estimated range shown in the other profile on your car? That might give us more insight into what’s happening.
If you connect an ODB scanner to the debug port of the car, it could provide detailed battery information. I’ve seen EV enthusiasts display the actual kWh of the battery, not just the charge percentage. You can buy an ODB scanner for around $30—it’s a worthwhile investment for any EV owner.
@Tatum
Absolutely, an OBD reader paired with the right app like Car Scanner can show you detailed battery metrics including individual cell voltages, which could help diagnose issues like this. It also provides a lot of other useful information about the battery’s health.
@Tatum
Yes, an ODB tool will show detailed diagnostics, including multiple state of charge (SOC) estimates. It takes some learning to interpret the data correctly, but it’s invaluable for understanding what’s really going on with your EV’s battery.
I’ve noticed some anomalies with my 2024 Kona EV’s battery measurements as well. It’s possibly a software issue based on your fix. I’m being cautious with my battery levels until it’s resolved.
Were you using the heater while the car was parked? That can significantly skew the average estimated range.
It’s very difficult to ‘ruin’ an electric car’s battery from a single incident. The range is just an estimate. Try driving it more to see how the estimate changes.
Try running the battery down below 10% and then charging it back up to 80%. This can help the battery management system recalibrate.
Caden said:
Try running the battery down below 10% and then charging it back up to 80%. This can help the battery management system recalibrate.
Do you have a source for that recalibration technique?
You might want to do a full charge cycle—charge it to 100% and then drive it down as low as you can. This could help recalibrate the readings.
How did that even happen—
Try resetting the trip monitors; sometimes this can clear up quirky electronic issues.