Original Range (Est):
-- mi
Est. Current Range:
-- mi
Capacity Loss:
--%
* This is a simulation based on Arrhenius degradation models and average climate data.
Actual battery health depends on specific BMS management and individual cell quality.
Not a substitute for a professional diagnostic scan.
How to Check Used EV Battery Health
Buying a used electric vehicle (EV) like a Tesla Model 3, Nissan Leaf, or Chevy Bolt? The biggest risk
is the high voltage battery.
Unlike gas engines, EV batteries degrade over time due to calendar aging (time) and
cycle aging (charging habits).
Why Climate Matters
Batteries in hot climates (e.g., Phoenix, AZ) degrade significantly faster than those in moderate
climates (e.g., Seattle, WA).
Heat accelerates the chemical reactions that cause capacity loss. Our simulator uses historical weather
data from Open-Meteo
to apply a physics-based Arrhenius model for accurate degradation estimates.
Understanding the Results
- Capacity Loss: The percentage of original battery size that is permanently lost.
- Estimated Range: The real-world range you can expect today, accounting for
degradation.
- Health Badge: A quick "Good/Bad" indicator based on industry standards (70% is
typically warranty replacement level).