Remember when everyone said EV batteries would be dead within five years? That the replacement cost would wipe out any savings you made on fuel?
Turns out, it was nonsense. And the data is now there to prove it.
The numbers speak for themselves
Battery analytics firm Recurrent estimates that after five years of ownership, the average EV still holds around 95 percent of its original range.
The table below shows the study data:
| Frequent DC fast charging | Lower-frequency DC fast charging | |
|---|---|---|
| Battery capacity retained | ~89.7% | ~94.9% |
| Battery replacement rate (2022+ models) | 0.3% | |
| Battery replacement rate (2011–2016 models) | ~8% (1 in 12) | |
| Average range retained after 5 years | ~95% | |
| Typical replacement cost (if needed) | £4,000–£13,000 | |
Five years in, and you’ve lost roughly 15 miles on a 300-mile battery. Most drivers would never notice that in daily use.
The improvement over older models is dramatic. Between 2011 and 2016, around one in 12 EVs needed a battery replacement at some point.
For cars built from 2022 onwards, that figure has dropped to 0.3 percent. Not three percent. Zero point three.
Better battery chemistry, smarter thermal management, and more sophisticated software have all contributed to the leap.
Early EVs gave batteries a bad name
Much of the fear around battery life stems from early models like the original Nissan Leaf.
The Leaf launched without any active battery cooling system. In hot climates, degradation was noticeable within a couple of years.
Modern EVs are a different proposition entirely. Liquid-cooled battery packs with carefully managed temperature ranges are now standard.
Judging today’s batteries on the performance of a 2012 Leaf is like judging modern smartphones on the battery life of a Nokia N95.
How your charging habits affect longevity
Not all charging is equal when it comes to long-term battery health.
Data from fleet analytics company Geotab shows that vehicles frequently charged at high-power DC stations retain around 89.7 percent capacity over time.
Cars that rely mostly on slower AC charging hold onto around 94.9 percent. That’s a meaningful gap over several years.
Regularly charging to 100 percent, leaving the battery fully flat for extended periods, and extreme temperatures all take a toll too.
None of these will destroy your battery overnight. But if you want to maximise its lifespan, steady AC charging at home is the kindest option.
What about replacement costs?
If you are one of the very few who needs a new battery, costs currently sit between roughly £4,000 and £13,000 depending on the manufacturer.
It’s not cheap. But most automakers now design packs so individual modules can be swapped rather than replacing the entire unit.
That brings costs down considerably and means a failing cell doesn’t have to mean a five-figure bill.
Warranty cover has also improved. Most manufacturers now offer eight years or 100,000 miles on the battery pack as standard.
Why perception hasn’t caught up yet
Despite all of the above, battery anxiety remains the number one reason people hesitate to go electric.
A 2025 survey by AutoPacific found that fear of expensive battery replacement still tops the list of buyer concerns.
The gap between perception and reality is narrowing, but it hasn’t closed yet. Articles like the recent Wall Street Journal report help.
So does lived experience. As more high-mileage EVs appear on the secondhand market with healthy batteries, the narrative will shift.
What it means for you
If you’re driving electric or thinking about making the switch, the battery question shouldn’t keep you up at night.
Look after it sensibly. Charge at home on AC when you can, avoid leaving it sat at zero for weeks, and don’t obsess over the numbers.
Your battery will almost certainly outlast your desire to keep the car.
Original story: WSJ
