Used Tesla Model Y battery health & degradation data
Last updated: · 10 sourced data points
The Model Y is now a common used buy in the UK (third most popular used EV in 2025). Independent data shows good retention, with LFP versions slightly ahead in Swedish dealer tests. Sources: Electrifying.com, Ny Teknik / Riddermarks Bil.
Battery options: RWD (LFP in many EU cars), Long Range, Performance.
Battery health by mileage (independent tests)
| Mileage | Median SoH | Range covering 99% of tested cars |
|---|---|---|
| 50,000 km (≈31,069 mi) | 94.4% | 89.0% – 97.2% |
| 100,000 km (≈62,137 mi) | 91.9% | 85.5% – 95.6% |
| 150,000 km (≈93,206 mi) | 90.3% | 82.9% – 94.9% |
Source: AVILOO GmbH, published 2026-09-03; n=53,718 tests of this model (all battery sizes grouped, global). Bar scale 75–100%.
All data points
| Variant | Mileage | SoH | Type | Sample | Measured by | Source (date) |
|---|---|---|---|---|---|---|
| All battery variants grouped | 50,000 km ≈ 31,069 mi |
94.4% 99% band 89.0%–97.2% |
Median | n=53,718 | AVILOO FLASH Test | AVILOO GmbH (2026-09-03) Band = central 99% of tested cars (p0.5–p99.5). |
| All battery variants grouped | 100,000 km ≈ 62,137 mi |
91.9% 99% band 85.5%–95.6% |
Median | n=53,718 | AVILOO FLASH Test | AVILOO GmbH (2026-09-03) Band = central 99% of tested cars (p0.5–p99.5). |
| All battery variants grouped | 150,000 km ≈ 93,206 mi |
90.3% 99% band 82.9%–94.9% |
Median | n=53,718 | AVILOO FLASH Test | AVILOO GmbH (2026-09-03) Band = central 99% of tested cars (p0.5–p99.5). |
| Model Y 78.8 kWh | 50,000 km ≈ 31,069 mi |
94.5% | Median | n/a | AVILOO FLASH Test | AVILOO GmbH (2026-09-03) |
| Model Y 78.8 kWh | 100,000 km ≈ 62,137 mi |
91.8% | Median | n/a | AVILOO FLASH Test | AVILOO GmbH (2026-09-03) |
| Model Y 78.8 kWh | 150,000 km ≈ 93,206 mi |
90.1% | Median | n/a | AVILOO FLASH Test | AVILOO GmbH (2026-09-03) |
| Model Y 78.8 kWh LG Chem | >100,000 km ≈ 62,137 mi |
92.2% | Average | n/a | AVILOO test (dealer) | Carla AB (2026-07-08) Average of tested cars with more than 100,000 km; sample size per model not published. |
| Model Y 60.5 kWh LFP | avg 63,338 km ≈ 39,356 mi |
94.7% | Average | n=178 | AVILOO quick test (dealer) | Ny Teknik / Riddermarks Bil (2026-06-18) 98.9% of tested cars above 90% SoH. Mileage is the average of tested cars. |
| Model Y 78.8 kWh LG | avg 68,403 km ≈ 42,504 mi |
93.8% | Average | n=1,137 | AVILOO quick test (dealer) | Ny Teknik / Riddermarks Bil (2026-06-18) 99.2% of tested cars above 90% SoH. Mileage is the average of tested cars. |
| Long Range (2170 cells) | 321,869 km ≈ 200,000 mi |
85.0% | Average | n/a | Manufacturer fleet data | Tesla, Inc. (2024) 200,000 miles. Model 3 and Model Y Long Range combined; manufacturer-published. |
Data gaps: No UK-specific Model Y dataset found yet.
What to check when buying a used Model Y
- Confirm battery type: Riddermarks measured 94.7% average SoH for LFP 60.5 kWh cars (avg 63,338 km) and 93.8% for LG 78.8 kWh cars (avg 68,403 km, n=1,137). (Ny Teknik / Riddermarks Bil)
- AVILOO notes up to 46 km of real-world range difference between the best and weakest Model Y at 150,000 km – the model average doesn't describe a specific car. (AVILOO GmbH)
- Check remaining battery warranty in the Tesla app. (Tesla UK)
- Compare any test result with the ranges above and with the ADAC rule of thumb: at least 92% at 50,000 km, 88% at 100,000 km, 84% at 150,000 km, 80% at 200,000 km. (ADAC)
Battery warranty (UK)
Tesla UK (current terms): Model Y RWD – 8 years or 100,000 miles; Model Y Long Range / Performance – 8 years or 120,000 miles; minimum 70% capacity retention over the warranty period. Source: Tesla UK, checked 2026-10-20. Always confirm the terms for the specific car with the manufacturer.
Get this specific car tested
Ad disclosure: we are not currently paid by these providers. If that changes, the specific links will be marked "(paid link)" and this box labelled "Ad". How we make money.
Model averages can't tell you about the car in front of you. An independent battery test (typically a short OBD plug-in test, some remote) gives an SoH figure and often a certificate you can use when negotiating.
- AVILOO – Independent OBD-based battery test (FLASH / Premium) with certificate; available via partners in the UK and EU.
- Generational – UK remote battery health assessment and certificate, used by dealers and fleets.
Prices change – check the provider's site. Provider names are used for identification only.
FAQ
What battery health is normal for a used Tesla Model Y?
In AVILOO's 2026 report (independent tests, all battery sizes grouped) the median SoH was 94.4% at 50,000 km, 91.9% at 100,000 km and 90.3% at 150,000 km. 99% of tested cars at 100,000 km fell between 85.5% and 95.6%.
What is the Tesla Model Y battery warranty in the UK?
Tesla UK (current terms): Model Y RWD – 8 years or 100,000 miles; Model Y Long Range / Performance – 8 years or 120,000 miles; minimum 70% capacity retention over the warranty period.
How can I check the battery of a specific Tesla Model Y?
Use an independent battery test (OBD-based or remote) and compare the result with the ranges on this page. Model averages cannot tell you the condition of one specific car.
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