Good news!
state-of-health (SoH)
"AVILOO has released a study examining electric vehicle (EV) battery degradation using data from more than 500,000 independent diagnostic tests conducted between 2022 and 2026.
The analysis covers 20 EV models and is based on the company’s FLASH battery diagnostic test, which connects through the vehicle’s OBD port and takes approximately three minutes. ...
Among four models examined in greater detail:
Hyundai IONIQ 5, 72.6-kWh battery: Median SoH declined from 97.2% at 50,000 km to 92.8% at 150,000 km.
Tesla Model Y, 78.8-kWh battery: Median SoH declined from 94.5 to 90.3% over the same mileage range.
Volkswagen ID.4, 77-kWh battery: Median SoH declined from 95.3 to 90.6%.
Nissan Leaf ZE1, 40-kWh battery: Median SoH declined from 91.1 to 86.3% and showed the widest variation among individual vehicles in the four-model comparison, reaching 13.5 percentage points at 150,000 km.
AVILOO’s data indicates that battery capacity and charging frequency can influence degradation. Smaller-capacity batteries require more charge and discharge cycles to cover the same distance, and the study found that smaller-battery EVs tended to show faster degradation. ..."
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