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Used Tesla being checked for battery health at El Cajon Mitsubishi

Used Tesla battery health

Tesla battery health & range in El Cajon, CA

Battery health is the question every used Tesla buyer asks and almost no listing answers. We answer it on every car we sell: we charge it, record the range the car itself displays at a full charge, and publish that against its original EPA rating.

How we measure it

A Tesla's display shows rated miles: the usable energy left in the pack divided by a fixed consumption figure. Charge the car to 100% and that number is the pack's current capacity expressed in miles. Compare it with what the same car was rated for when it was new and you have a straightforward measure of how much of the original range is left.

The arithmetic

268 miles displayed at a full charge ÷ 310 miles rated when new ≈ 86%

That is the figure you see on our listings. It is a reading from that specific car, not an average for the model year, and it is not a laboratory capacity test - displayed range moves with calibration, temperature, software and how the car has been used.

What is normal

Degradation is steepest early and then flattens out. Tesla's own impact reporting puts average capacity loss at roughly 12-15% at 200,000 miles, and an independent study of 22,700 electric vehicles found an average of about 2.3% a year across all makes. A used Tesla in the mid-to-high 80s with six figures on the odometer is behaving exactly as expected.

What matters more than the headline percentage is whether the number is real. Ours are measured. Where we have not yet recorded a reading for a car, our vehicle pages say so plainly and show an estimate labelled as one.

Used Tesla driving in El Cajon, CA

What the number means

Range you can plan around

A pack in the mid-eighties still covers the driving most people actually do - a commute, the school run, a weekend down the coast - on a charge at home overnight.

What matters is knowing the figure before you buy rather than discovering it afterwards, which is why we publish it on the listing instead of waiting to be asked.

What is still covered Model S repair costs

Measured battery health across our current used Tesla inventory

These are the readings we have recorded on the cars on our lot today, updated as inventory changes.

VehicleOdometerRange at full chargeRated when newBattery health
2015 Tesla Model S P85D50,783 mi237 mi253 mi94%battery
2021 Tesla Model X Long Range34,709 mi345 mi371 mi93%battery
2021 Tesla Model S Long Range Plus34,340 mi371 mi405 mi92%battery
2022 Tesla Model 3 Base65,416 mi246 mi272 mi90%battery
2019 Tesla Model X Long Range67,051 mi290 mi325 mi89%battery
2021 Tesla Model S Long Range50,957 mi360 mi405 mi89%battery
2017 Tesla Model S P100D65,716 mi280 mi315 mi89%battery
2024 Tesla Cybertruck Base45,342 mi298 mi340 mi88%battery
2019 Tesla Model X Standard Range92,608 mi226 mi258 mi88%battery
2025 Tesla Model 3 Performance21,857 mi261 mi298 mi88%battery
2024 Tesla Model Y Long Range33,932 mi270 mi310 mi87%battery
2018 Tesla Model 3 Long Range56,386 mi270 mi310 mi87%battery
2025 Tesla Model 3 Long Range25,153 mi315 mi363 mi87%battery
2016 Tesla Model S 7588,680 mi211 mi249 mi85%battery
2018 Tesla Model 3 Long Range87,925 mi260 mi310 mi84%battery
2022 Tesla Model 3 Long Range46,334 mi295 mi358 mi82%battery
2021 Tesla Model Y Long Range114,784 mi267 mi326 mi82%battery
2020 Tesla Model 3 Long Range53,931 mi263 mi322 mi82%battery
2025 Tesla Model 3 Long Range27,012 mi295 mi363 mi81%battery
2021 Tesla Model X Performance83,026 mi275 mi341 mi81%battery
2018 Tesla Model 3 Long Range112,485 mi250 mi310 mi81%battery
2019 Tesla Model S 100D58,245 mi270 mi335 mi81%battery
2018 Tesla Model 3 Performance72,021 mi247 mi310 mi80%battery
2022 Tesla Model 3 Performance38,224 mi250 mi315 mi79%battery
2019 Tesla Model 3 Standard Range Plus88,036 mi190 mi240 mi79%battery
2021 Tesla Model 3 Standard Range Plus59,419 mi207 mi263 mi79%battery
2018 Tesla Model 3 Performance94,888 mi240 mi310 mi77%battery
2021 Tesla Model 3 Standard Range Plus114,269 mi200 mi263 mi76%battery
2019 Tesla Model 3 Standard Range Plus125,043 mi180 mi240 mi75%battery
2019 Tesla Model 3 Mid Range98,101 mi197 mi264 mi75%battery
2019 Tesla Model 3 Standard Range Plus143,882 mi175 mi240 mi73%battery
Used Tesla inventoryWhy buy your Tesla hereWarranty coverageUsed Model 3Used Model S

Battery health questions

What used Tesla buyers ask us about degradation, range and what a reading actually means.

Most used Teslas sit between the high 70s and high 90s depending on age and mileage. Tesla reports average capacity loss of roughly 12-15% at 200,000 miles, so a car in the mid-80s with high mileage is normal rather than alarming. A steep loss on a low-mileage car is the thing worth asking about.
Charge it to 100% and read the range the car displays, then compare that with the EPA rating for that model year and configuration. That ratio is what we publish. A partial charge works too, because displayed rated miles scale with state of charge.
It is steepest in the first years and then flattens. The curve is not linear, which is why an eight-year-old pack is usually much closer to a six-year-old pack than people expect.
It is covered by Tesla's battery and drive unit warranty for 8 years and up to 150,000 miles depending on model, and that coverage transfers to you. Outside warranty, module-level repair has made pack work far less expensive than a full replacement.
On every car we have recorded a reading for, and we are working through the lot. Where a reading has not been taken, the vehicle page shows an estimate and labels it as an estimate rather than presenting it as a measurement.