EV Battery Health Tracker
Estimate your battery's health based on model and mileage, see projected degradation over time, and check your warranty coverage.
Avg degradation: 2%/yr · Warranty: 8 yr / 120,000 mi @ 70%
Vehicle age: 4 years
30,000 mi
12,000
94%
Estimated battery health
Under
Battery warranty
4 yr / 90,000 mi remaining
~15 yr
Until 70% capacity
at 2%/yr average degradation
Projected Battery Health Over Time
● Current position— Projected (2%/yr)
How to Slow Battery Degradation
- ✓Keep daily charge between 20–80% for regular driving (only charge to 100% for long trips)
- ✓Avoid frequent DC fast charging if possible — Level 2 home charging is gentler on cells
- ✓Don't let battery sit at 0% for extended periods
- ✓Park in a garage when temperatures are extreme (hot or cold)
- ✓Use preconditioning in winter while plugged in — not on battery power
Estimates based on fleet degradation studies (Geotab 2023, Recurrent 2024). Actual results vary significantly by climate, charging habits, and individual battery variation. This is not a warranty assessment.