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How Long Does a Tesla Battery Last? Real Degradation Data

4 min readBy the FSDClarity team

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A Tesla battery typically lasts far longer than the car's warranty — Tesla's own data shows Model S and Model X packs keep about 88% of their capacity after 200,000 miles. At that rate, most packs will still be usable at 300,000 miles and beyond, which for most drivers means 15–20 years. The battery is also covered by an 8-year warranty that guarantees at least 70% capacity.

How much battery warranty is left?

Enter your delivery date and mileage to see your remaining Battery & Drive Unit and basic warranty.

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The short answer in miles and years

  • Miles: most Tesla packs are expected to remain usable well past 200,000 miles, with high-mileage examples beyond 300,000.
  • Years: at 12,000 miles a year, 200,000 miles is about 17 years.
  • Warranty: 8 years and 100,000–150,000 miles, depending on the model, with a 70% capacity guarantee.

In practice, many Teslas will be retired for other reasons — accidents, worn suspension, or simply age — before the battery wears out.

How much capacity Teslas lose by mileage

Battery degradation isn't linear. Packs lose a few percent early, then the decline slows:

MileageTypical remaining capacity
25,000about 95%
50,000about 93–95%
100,000about 90–92%
150,000about 88–90%
200,000about 85–88%

These figures reflect Tesla's reported data for Model S and Model X and owner-collected data. Individual cars vary, especially at high mileage, where there are fewer cars to compare.

Model 3 and Model Y batteries

Tesla's published 200,000-mile figure is for Model S and Model X. Model 3 and Model Y use different cells — including LFP (lithium iron phosphate) packs in many RWD versions — and Tesla hasn't published equivalent long-term numbers. Owner data so far suggests they hold up similarly. LFP packs in particular are known for long cycle life and tolerate regular charging to 100%.

What speeds up battery degradation

  • Heat. Batteries age faster in hot climates, especially when parked in the sun at high charge.
  • Sitting at very high or very low charge. Keeping an NCA/NCM pack at 100% or near 0% for long periods adds wear. (LFP packs are the exception for 100%.)
  • Frequent fast charging. Lots of Supercharging adds some extra wear, though Tesla's thermal management limits the effect.
  • Deep cycling. Regularly running near empty and charging to full.

How to make your battery last longer

  1. Set a daily charge limit — around 80–90% for most packs; follow Tesla's recommendation for LFP, which is to charge to 100% at least weekly.
  2. Plug in when parked for long periods so the car can manage its battery.
  3. Use Superchargers for road trips rather than daily charging, when you can.
  4. Don't leave the car near 0%.

How to check your battery's health

  • Compare the range at 100% with the original EPA range for your car. Remember range estimates move with temperature.
  • Run the battery health test. Recent Tesla software includes a battery health test in the car's service menu.
  • Ask Tesla Service if you suspect unusual degradation — especially if you're still under warranty.

What happens when a battery finally fails

Under warranty, Tesla repairs or replaces it, usually with a remanufactured pack. Out of warranty, a full pack typically costs $10,000–$21,000 depending on the model, and independent shops can sometimes repair a single module for less. See our guide to Tesla battery replacement cost.

Frequently asked questions

How many miles will a Tesla last?

Most Teslas are expected to run well past 200,000 miles on the original battery, with many reaching 300,000+.

Do Tesla batteries degrade fast?

No. Tesla reports about 12% capacity loss after 200,000 miles on Model S and Model X.

How long does a Tesla battery last in years?

Typically 15–20 years for an average driver, though heat and charging habits matter.

Does Supercharging ruin the battery?

No, but heavy daily fast charging adds some extra wear compared with home charging.

The bottom line

Tesla batteries are built to outlast the car for most owners: about 85–88% capacity at 200,000 miles, plus an 8-year warranty. If you're buying used, check the warranty left with the Battery Warranty Checker and read our Tesla battery warranty guide.

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