Buying a used EV in the UK: what range can you actually expect?
Range is the single biggest fear when buying a used electric car. Here is what the data actually says about how UK used EVs hold up.
Range is the number that scares people off used electric cars more than any other. The new-car brochures keep climbing — 400 miles here, 450 there — but if you are shopping a three- or four-year-old EV on a private-sale budget, the honest question is what you can really expect on the day you drive it home.
The used market is finally giving us enough data to answer that properly. Used electrified vehicles hit 11.7% of the UK used market in Q1 2026, and the choice has exploded — the number of EV models on sale in the UK has gone from 14 a decade ago to roughly 167 today. That mix of supply and demand is exactly why prices have softened and why buyers are finally getting bold enough to ask the awkward questions.
What the brochure number actually means
Manufacturer WLTP figures are tested under conditions that almost never match a British winter commute. Take a current top-10 like the What Car longest-range list for 2026: the cars at the top are quoting 400 miles plus, but the real-world test figures are usually 20-30% lower in cold weather and on motorways. That is true of a new EV. It is also true of a three-year-old one — the gap between brochure and reality does not get bigger with age, it just starts from a slightly lower brochure number once degradation kicks in.
This is the bit most buyers get wrong: they assume a five-year-old EV will have lost half its range. The data says otherwise.
How fast batteries actually age
The useful number to anchor on is around 2% per year. A Geotab study covering more than 6,000 EVs found average capacity loss of 2.3% per year, and InsideEVs' large-scale analysis came to similar conclusions across more than a billion miles of driving data. In practical terms:
- A three-year-old EV will typically have 92-95% of its original battery capacity.
- A five-year-old EV will sit around 88-90%.
- An eight-year-old EV will usually still have 80-85% — well within the territory where the manufacturer's eight-year battery warranty (typically guaranteeing 70%) is still in force on most models.
Battery replacements, the thing everyone is most afraid of, are vanishingly rare. The failure rate on modern lithium-ion EV packs runs at roughly 0.3% — meaning roughly 997 out of every 1,000 used EVs will never need a new battery in the realistic ownership window.
None of that means range loss is invisible. If a car was sold with a 250-mile WLTP figure, a five-year-old example will more honestly do around 215-220 miles WLTP, which in a British January translates to perhaps 155-165 real miles on a motorway run. That is still enough for most UK commuting patterns, but it is the number you should be planning your charging life around, not the brochure figure.
What to check before you buy
Three things, in order:
1. State of Health (SoH). Most modern EVs display this in a service menu, and reputable dealers will print a battery health report on request. Anything above 90% on a car under four years old is normal. Below 85% on a car under five years old is a question worth asking. 2. The remaining battery warranty. Almost every EV sold in the UK in the last decade carries an eight-year / 100,000-mile battery warranty guaranteeing 70% capacity. If the car is six years old with 60,000 miles, you have a meaningful two-year safety net. 3. Charging history. Heavy reliance on rapid DC charging from 0 to 100% repeatedly does accelerate degradation. A car that has lived on a 7kW home charger will almost always be in better health than one that has spent its life on motorway service stations.
A practical takeaway
The range fear is mostly a hangover from the first generation of mass-market EVs — the early Leafs and i3s, where degradation could be alarming and the brochure numbers were modest to start with. The current crop of three- to six-year-old used EVs is a fundamentally different proposition: bigger batteries, slower degradation, longer warranties.
If you are buying a used EV in 2026, you do not need to budget for 50% of the brochure number. You need to budget for around 90% of the WLTP figure, deflated by 25% for winter and motorway driving. That is the honest answer to the range question — and on most modern used EVs, it is more than enough car for the way most British drivers actually use one.