Updated October 2026
Data guideEV Battery Degradation by Model: What the Data Shows
"How fast do the batteries degrade?" is the most-asked question in used EV shopping — and the honest answer is: it depends on the model more than almost anything else. Thermal management, chemistry, and pack design split the market into clear winners and one famous loser.
All figures below are typical ranges drawn from large fleet datasets (notably Geotab's 2026 analysis of 22,700 vehicles and Recurrent's model comparisons), not guarantees. Individual cars vary with climate and charging habits — always verify the specific car. New to the concept? Start with What Is EV Battery SOH?
The one factor that decides everything
Before the model-by-model numbers, understand the pattern: liquid-cooled batteries degrade slowly and predictably; passively-cooled batteries don't. Active thermal management keeps cells in their happy temperature zone during charging, driving, and hot weather. Every model below that performs well has it. The one that doesn't is the cautionary tale of the used EV market.
The benchmark
Tesla Model 3 / Model Y
Typical SOH at 5 years: 88–93% · Thermal management: liquid-cooled · Chemistry: NCA/NMC (Long Range/Performance), LFP (some Standard Range)
The most-studied used EVs on earth, and the data is reassuring: roughly 5–10% loss in the first couple of years, then about 1% per year after. LFP-equipped Standard Range cars (common from 2021+) degrade even more gracefully and tolerate 100% charging better — a genuine advantage for used buyers. With the largest sample sizes in every dataset, Model 3/Y degradation is the most predictable in the business.
Watch for: cars with very high DC fast-charge counts and hot-climate histories at the low end of the range. Also note that Tesla doesn't display a plain SOH figure — you infer it from rated range at 100% or a third-party scan.
The quiet overachiever
Chevrolet Bolt EV / EUV
Typical SOH at 5 years: 88–94% · Thermal management: liquid-cooled
Bolts degrade slowly and are among the best value plays in used EVs — partly because the battery recall saga scared the market. Here's the key nuance: huge numbers of Bolts received brand-new replacement packs under GM's recall. A 2017–2019 Bolt with a recall-replaced pack may effectively have a much younger battery than its odometer suggests. Check the service history — a replaced pack is a feature, not a flaw.
Watch for: pre-recall cars that never got the replacement (verify!), and the 2020–2022 models' smaller sample sizes.
The cautionary tale
Nissan Leaf (especially 2011–2017, and 30 kWh cars)
Typical SOH at 6–8 years: 75–88% (wide spread) · Thermal management: passive air cooling (none active)
The Leaf is the reason "check the battery" is advice at all. Without active liquid cooling, Leaf batteries cook in hot climates — Arizona and Texas Leafs are the textbook case. The 30 kWh packs (2016–2017) degraded notoriously fast even by Leaf standards. Later 40/62 kWh cars are better but still passively cooled.
This doesn't make every Leaf a bad buy — it makes Leafs the most price-sensitive used EVs in existence. A cool-climate Leaf with verified decent SOH at a steep discount can be a brilliant cheap commuter. A hot-climate Leaf at a "clean" price is the classic used-EV trap. Price the battery, not the badge.
Solid, smaller sample
Volkswagen ID.4
Typical SOH at 3–4 years: 92–96% (early data) · Thermal management: liquid-cooled
Still young in the datasets, but early readings are healthy — liquid cooling doing its job. The ID.4's main used-market story isn't degradation, it's depreciation: heavy discounting new has made 2–3-year-old ID.4s genuinely cheap. Verify SOH like any other car, but there's no model-specific red flag in the data so far.
Healthy, watch the 12V
Ford Mustang Mach-E
Typical SOH at 3–4 years: 92–96% (early data) · Thermal management: liquid-cooled
Similar story to the ID.4: young fleet, healthy early numbers, liquid-cooled. The Mach-E's known used-car quirks are 12V battery issues and software, not traction-battery degradation. As with all young models, treat early data as encouraging rather than conclusive.
Degradation curves at a glance
| Model | Cooling | ~5-yr typical SOH | Degradation character |
|---|---|---|---|
| Tesla Model 3/Y | Liquid | 88–93% | Fast early, then ~1%/yr; most predictable |
| Chevy Bolt | Liquid | 88–94% | Slow; recall replacements reset the clock |
| Nissan Leaf (older) | Passive | 75–88% | Wide spread; heat is brutal |
| VW ID.4 | Liquid | 92–96% (3–4 yr) | Healthy early data |
| Ford Mach-E | Liquid | 92–96% (3–4 yr) | Healthy early data |
What moves a car off its curve
- Climate: the same model in Phoenix vs. Portland can differ by several SOH points at the same age. Hot-climate history is the biggest legitimate discount lever.
- Fast charging: heavy DC fast-charge reliance roughly doubles the degradation rate versus mostly home charging, per fleet data.
- The 100% habit: cars routinely charged to full and left there wear faster — except LFP Teslas, which tolerate it.
How to use this page: find the car's model above, note the typical range, then check the specific car with the methods in How to Check a Used EV's Battery Health. A car beating its model's curve is a find. One trailing it is leverage — or a pass.
Using degradation data to negotiate
Model curves aren't trivia — they're ammunition. When a seller says "the battery's fine for its age," you can answer with the model's actual curve: "The fleet average for a 2019 Model 3 is about 90%. This one's at 83%. That's a 7-point gap — roughly 20 miles of range, permanently. I need that reflected in the price."
Three phrases that work:
- "Show me the SOH." Forces the conversation onto numbers instead of adjectives.
- "What's it versus the model average?" Shows you've done homework; most sellers haven't.
- "I'm pricing in a pack at $X." Name the replacement cost for the model. Even if you'd never replace it, the number anchors the negotiation in reality.
And remember the reverse: when a car beats its model's curve — cool climate, gentle charging, strong SOH — that's worth paying for. The premium for a top-decile battery is the cheapest insurance in used EV shopping.
Frequently asked questions
Which used EV has the best battery longevity?
On current data: liquid-cooled Teslas and Bolts have the longest track records of slow degradation. LFP-battery Teslas look excellent but have shorter histories. The honest answer for any 2–3-year-old model is "early data is good, check back in 2028."
Should I avoid used Leafs entirely?
No — avoid overpriced Leafs. A verified healthy-SOH Leaf in a cool climate at a steep discount is one of the cheapest ways into EV ownership. Just never pay a clean price for one without checking the battery.
Do newer EVs degrade slower than older ones?
Generally yes — better thermal management, better chemistries (LFP), and smarter BMS software. But "newer" is no substitute for checking the individual car.
Where does this data come from?
Large fleet telematics (Geotab's 22,700-vehicle 2026 analysis), Recurrent's owner-reported dataset, and manufacturer disclosures. Sample sizes are largest for Tesla and Leaf; treat young-model figures as early reads.
Keep going: what SOH measures · replacement costs by model