EV Battery Degradation Estimator

The EV Battery Degradation Estimator substitutes your inputs (Original capacity (kWh), Years of use, Degradation % per year) into the standard expression: Capacity now (kWh) = Original capacity (kWh) × (1 − Degradation % per year ÷ 100)^(Years of use); Capacity lost (kWh) = Original capacity (kWh) − Original capacity (kWh) × (1 − Degradation % per year ÷ 100)^(Years of use). Every variable is read straight from the fields on this page, and the result is computed the moment you enter the values.

1. 1

   Step 1

   Enter the vehicle data and required values.

2. 2

   Step 2

   Hit "Calculate" and the result is computed automatically.

3. 3

   Step 3

   Review the result and details below before relying on it.

4. 4

   Step 4

   The breakdown lists your inputs — Original capacity (kWh), Years of use next to the computed value under the page's standard expression; read it before relying on the number.

5. 5

   Step 5

   Adjust one input at a time and compare scenarios: change Original capacity (kWh) and re-run to see which variable moves the ev battery degradation estimator result most.

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  The EV Battery Degradation Estimator needs every variable in consistent units — Original capacity (kWh), Years of use — before the standard formula returns a valid result, so check each field's unit before entering values copied from elsewhere.

• 2

  Enter values in the units the EV Battery Degradation Estimator fields expect — Original capacity (kWh), Years of use and the rest; mismatched units are the most common way a correct formula yields a wrong number no calculator can detect.

• 3

  Copy the EV Battery Degradation Estimator result together with the input values that produced it; a number without its documented inputs cannot be re-verified later, and assumptions are easy to forget once the session is closed.

• Original capacity (kWh) and Years of use must be entered in one consistent unit system: months against years skews the EV Battery Degradation Estimator result silently. Convert every input to the unit named on its field first.

• Zero and negatives can sit outside the formula's domain: zero years of use may make the EV Battery Degradation Estimator undefined, and a negative original capacity (kwh) still returns a number. Check each input is inside the range the quantity allows.