Real-world State of Health (SoH) for the Tesla Model Y, based on 39 aggregated data points across 2022–2026 model years. On average the Model Y loses about 2% per year — here's what that means for range, resale, and when (if ever) you'd need a replacement.
State of Health vs. mileage, from real Model Y data. The curve flattens after the initial break-in drop — the steepest losses happen early, then degradation slows.
| Mileage | Typical SoH | Status | Est. range |
|---|---|---|---|
| 50,000 km | 94.8% | Excellent | 428 km |
| 100,000 km | 91.6% | Excellent | 414 km |
| 150,000 km | 89% | Good | 402 km |
| 200,000 km | 86.5% | Good | 391 km |
Estimates from aggregated real-world data. Individual results vary with climate, charging habits, and use.
Get a free, instant State of Health estimate for your exact year and mileage — no account, no hardware.
Check My Model Y — FreeVoltChek's estimate is data-driven, but the only way to read your Model Y's true State of Health is straight from its Battery Management System with an OBD2 scanner.
The adapter alone won't read battery health — you also need a free vehicle-specific app (Tesla → Scan My Tesla + harness, Leaf → LeafSpy, most others → Car Scanner). The bundled app doesn't work on EVs.
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Gentle Level 2 home charging generates far less heat than DC fast charging — the single biggest driver of degradation. See our best home EV chargers for 2026 to slow wear and save on every charge.
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Based on aggregated real-world data, the Tesla Model Y loses roughly 2% of its capacity per year. At 100,000 km it typically retains about 91.6% State of Health, and it is covered by a 8-year / 192,000 km battery warranty down to 70% capacity. Most Model Y batteries are expected to outlast the rest of the car.
A full Tesla Model Y pack is around 78.1 kWh. At current installed prices of roughly $120–$180 per kWh, an out-of-warranty replacement would land in the $9,400–$14,100 range — but module-level repair is often far cheaper, and most owners never need it. See our EV battery replacement cost guide.
A used Tesla Model Y can be an excellent value as long as the battery is healthy. Always check the State of Health before buying — at 88.5% (typical at higher mileage) the car still delivers strong daily range. Run a free VoltChek estimate and confirm with an OBD2 scanner before you commit.
Two ways: get an instant data-driven estimate from VoltChek using your year and mileage (free, no hardware), or read the exact value from the car's Battery Management System with an OBD2 scanner. We recommend starting with the free estimate, then verifying with a scanner.