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Calcimator

EV Battery Replacement Calculator

Evaluate whether replacing your EV battery is worth it. Calculate ROI, years of extended life, cost per mile, and get a recommendation.

Inputs

$
$
%
years

Results

Replacement ROI

-35%

Years of Life Extended

8.3 years

Cost per Mile Added$0.04
RecommendationConsider — evaluate vs buying a newer EV
How to Use This Calculator
  1. Enter the Current Vehicle Value with the degraded battery.
  2. Set the Battery Replacement Cost including labor from your dealer or third-party shop.
  3. Enter the Current Battery Capacity (% SOH) and Vehicle Age in years.
  4. Review Replacement ROI (%), Years of Life Extended, Cost per Mile Added, and the Recommendation (replace vs. sell).

What each input means

Current Vehicle Value
Current market value of the vehicle with degraded battery.
Battery Replacement Cost
Quoted cost for a new or refurbished battery pack including labor.
Current Battery Capacity
Current battery state of health (SOH) percentage.
Vehicle Age
How old the vehicle is currently.

What each result means

Replacement ROI
Return on investment for battery replacement (negative = net cost).
Years of Life Extended
Estimated additional years of useful vehicle life.
Cost per Mile Added
Battery replacement cost spread over additional miles gained.
Recommendation
Assessment based on replacement cost vs vehicle value.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Current Vehicle Value = 15000, Battery Replacement Cost = 8000, Current Battery Capacity = 70, Vehicle Age = 8 = 4 input(s) provided
  2. Calculate Replacement ROI
    Replacement ROI
    -35 = -35
  3. Calculate Years of Life Extended
    Years of Life Extended
    8.3 = 8.3
  4. Calculate Cost per Mile Added
    Cost per Mile Added
    0.04 = $0.04

Engine last updated . Checked against 3 independently-derived tests — how we verify calculators.

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