EV Battery Degradation Calculator

Estimate your EV battery's remaining health and capacity based on age, mileage, and charging habits.

πŸ”‹ EV Battery Degradation

Results

Estimated Health89.1%
Current Capacity66.8 kWh
Capacity Lost10.9%

πŸ’‘ Understanding EV Battery Degradation

EV batteries lose capacity gradually over time and use. The average degradation rate is about 2.3% per year. By year 5, most EV batteries retain 85–90% of original capacity. By year 10, 75–85%. Modern batteries are lasting longer than early projections.

Factors that accelerate degradation: frequent DC fast charging, extreme heat exposure, frequently charging to 100%, and frequently depleting below 10%. Best practices: charge daily to 80%, use AC home charging, avoid extreme temperatures.

A 3-year-old EV with 80,000 km and 20% DC fast charging: estimated battery health = 89%. A 75 kWh battery retains 66.9 kWh of usable capacity.

EV Battery Degradation Calculator FAQ

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