Hi everyone,
I’m trying to solve a bit of a data mystery with my 2022/23 Ioniq 5 Namsan (Single Motor / 2wd ) and I’m curious if anyone else has seen this after a dealership visit.
I recently used a Veepeak OBD2 dongle to check my battery health (which is still at 100% SOH with a 0V cell delta!). However, when I looked at my lifetime energy consumption vs. my mileage, the numbers look a bit too good to be true.
The Data:
Odometer: The car has officially done 33,644 miles.
Cumulative Energy Discharged (CED): Car Scanner reports a total of 6,525.5 kWh.
The Math: This suggests a lifetime efficiency of 5.15 mi/kWh.
I do almost all my driving in London with only occasional weekend travel, and my Bluelink app shows I’m hitting massive regeneration numbers—about 37% of my energy is being recuperated. While the single-motor model is definitely the efficiency king of the lineup, a 5.15 lifetime average across 33k miles still feels like a stretch, especially since my recent monthly average is closer to 4.1 mi/kWh.
The Theory:
My car had the ICCU recall service and a firmware flash about year and a half ago. I suspect that while the update didn't touch the physical odometer, it might have reset the internal energy counters (CEC/CED) in the BMS or VCMS.
If I assume a more typical urban average of 4.1 mi/kWh, those 6,525 kWh represent roughly 26,000 miles of driving, which would mean my stats were reset at some point…
Has anyone else noticed their internal kWh counters resetting after the ICCU firmware update? Or is heavy London traffic + 37% regen actually enough to sustain a 5+ mi/kWh lifetime average?
Looking forward to your insights!