EV Battery Longevity: The Long View From a Decade of Ownership

Last week I ended up quoted in The Wall Street Journal in a story about how well electric-vehicle batteries are holding up over the long haul. The line they used from me was simple: as EVs build a reputation for battery longevity, that reputation is "definitely gonna help them catch on".

I stand by that. But a quote in a national story is a soundbite, not the full picture. So here is the longer version, shaped by more than a decade of owning EVs and watching this market grow up.

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My 2016 Hyundai Sonata Plugin Hybrid right before I sold it in October of 2017

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What the Journal found

The reporting lined up with what a lot of high-mileage owners have been saying for years. A few of the numbers worth knowing, all attributed to the sources the WSJ cited:

• The average EV still holds up to about 95% of its original range after five years on the road, according to battery health monitoring firm Recurrent Auto.
• Early EVs earned their bad reputation honestly. Roughly one in twelve built between 2011 and 2016 needed a battery replacement. For EVs built from 2022 on, that figure drops to around 0.3%, per a 2025 Recurrent study.
• Battery prices have fallen more than 90% since 2010, according to BloombergNEF.  *A battery pack that cost well over $1,000 per kWh in 2010 is around $99 to $108 per kWh today
• An out-of-warranty pack replacement can still run anywhere from $5,000 to $16,000 depending on the automaker, though more manufacturers are designing packs so individual modules can be repaired instead of swapping the whole thing. *Large packs such as in our Silverado EV RST Max or Rivian R1S can run significantly higher out of warranty.

You can read the full piece on the Wall Street Journal site here: EV Batteries Are Defying Expectations After Hundreds of Thousands of Miles.  *See disclosure at the bottom of this article for source info on Recurrent Auto.

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My One month old 2017 Bolt EV Premiere

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My EV history, and why it gives me perspective

My road to EVs started the way a lot of people's did, by accident. My Volkswagen Golf TDI got caught up in Dieselgate and was repurchased by VW, and I replaced it with a 2016 Hyundai Sonata plug-in hybrid. That was my bridge into going electric.

From there I went fully electric with a 2017 Chevrolet Bolt EV, the very first model year. I loved that little car and drove it for three and a half years. Mine was ultimately repurchased by General Motors as part of the LG battery recall, a manufacturing defect, not a design failure. That leads to something worth knowing if you are shopping used: a lot of those recalled Bolts got brand-new battery packs with fresh warranties, which makes them one of the best inexpensive used EV deals out there right now. Just verify when the battery was actually replaced before you buy.

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My Dieselgate 2015 Golf TDI SEL

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After the Bolt came a 2021 Tesla Model Y, then a 2022 Model Y Performance. That is when I moved into Rivians, starting with an R1T, and my wife made the switch to electric around the same time. Between the two of us we have owned five Rivians. Today I drive a 2024 Chevrolet Silverado EV RST, and my wife is in a Rivian R1S tri-motor she picked up recently.

I have also driven many more EVs from various different manufacturers. Some people are loyal to one brand or one model. I am not.

I am passionate about electric vehicles, all of them. That is the lens I bring to a question like battery longevity: not a fan of any single automaker, just someone who has lived with this technology through several generations of it.

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Our 2021 Tesla Model Y Long Range

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What actually changed: thermal management and smarter software

When I think about battery longevity, I think about how far the technology has come. The reputation for poor battery life traces back to the first affordable EVs, above all the early Nissan Leaf. Those cars were sold for years, and the reputation they earned set in and has stuck for more than a decade, long after the engineering moved on.

Here is the thing those early Leafs were missing: active thermal management. That is a system where coolant is chilled or heated and circulated through the battery to hold it at a consistent temperature and keep it out of the extremes. It also brings the pack into a safe window for both charging and discharging, so the battery is not being damaged when it is very hot or very cold. Almost every EV built since around 2014 or 2015 has it. The early Leaf did not, and it wore down quickly because of it. That one difference is a big part of why modern batteries are so much more durable.

The second piece is software. Every EV runs a battery management system, and software improves over time. Think about how much better your phone or your computer's operating system is than it was ten years ago. Battery management has improved the same way, and it lets a pack hold more of its usable capacity for longer than ever before.

This is the opposite of an internal combustion engine, where the moving parts wear no matter what and eventually fail regardless of any update. A battery actually gets smarter as the software gets smarter, and that trend is still going.

What I have actually seen on fast charging

The data says fast charging matters. Telematics company Geotab found that batteries frequently DC fast-charged at high power lose range at roughly twice the rate of batteries charged at lower power, holding about 94.9% of capacity out to three and a half years versus about 89.7% for the heavy high-power users. That effect is real, and I am not going to wave it away.

But in my own experience, and in what I have watched across the owner community, the impact is smaller than the reputation suggests, especially once good thermal management is in the picture. I remember an owner on the Bolt EV forums with a 2017, over 100,000 miles, who had done almost all of his charging on DC fast chargers, and he was still showing less than 10% degradation. That is one anecdote, not a study, but it stuck with me because it ran counter to what I expected at the time.

The other thing that improved as thermal management got better is charging speed. My 2017 Bolt maxed out at 50 kW, which is slow. A 10 to 80% charge took the better part of an hour, if memory serves. The standard today is around 250 kW, and plenty of EVs go faster. My Silverado EV can take up to 350 kW. On the work-truck model, which uses the same 24-module pack as my RST, I measured a 10 to 80% charge at just 38 minutes, which is genuinely impressive when you consider how massive that battery is.

How you charge matters

Here is the nuance that gets lost when a story gets compressed to "EV batteries last." They last if you treat them reasonably, and the levers are well understood.

Telematics company Geotab found that batteries frequently fast-charged at high power lose range at roughly twice the rate of batteries charged at lower power. In their data, packs charged with infrequent DC fast charging held about 94.9% of capacity out to the three-and-a-half-year mark, while packs leaning hard on high-power fast charging sat closer to 89.7%. Regularly charging to 100%, letting a pack sit at 0% for long stretches, and heavy exposure to extreme heat or cold all chip away at long-term range too.

The 70% rule: how I actually recommend charging

Here is the practical advice I give every new EV owner. For daily charging, I do not recommend setting your limit above 70 to 80%. I prefer 70%, because the pack is happiest living in the middle of its capacity, roughly between 20 and 70%. That middle band is where a lithium-ion battery ages the slowest.

That leads to what I call the 70% rule. If your daily driving needs more range than your EV delivers on 70% of a full charge, then you need a bigger battery or a different EV.

Here is why: if you are constantly charging above 80% or running the pack below 10% just to get through a normal day, you are doing something more detrimental to long-term battery health than fast charging ever was. The daily grind of sitting at a high state of charge, or running near empty, is what quietly wears a battery down.

None of this means you can never use the full range. It is perfectly fine to charge to 100% or run down to 10% now and then on a road trip. Just do not leave the pack sitting at those extremes, and do not make it your everyday habit. Follow that one guideline and you will meaningfully reduce your odds of ever seeing a battery failure down the road.

None of this is exotic. It is the EV equivalent of not redlining a cold engine. The owners who understand it are the ones putting up the big odometer numbers without drama.

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Our Rivian R1T Charging at a New York Tesla Supercharger in November of 2023

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Where the caution still makes sense

I am not here to sell anyone a battery. EV Outdoors has never worked that way, and the honest read is that some of the buyer hesitation is still earned.

• An out of warranty pack replacement is genuinely expensive, and while modular repair is improving, it is not universal yet. If you buy a used EV outside its battery warranty, that risk is real and worth pricing in.
• Cold and heat still cut range, sometimes significantly. If you tow, or live somewhere with hard winters, that hit is part of your daily math, not a footnote.
• Fast-charging convenience and long-term battery health pull in slightly different directions, so how you drive determines how much the longevity data actually applies to you.

The batteries got good. That does not mean every EV, every use case, and every buyer is a slam dunk. It means the specific fear that killed a lot of purchases, that the pack would die and cost a fortune in a few years, is mostly behind the current data.

Why this actually matters

The gap right now is not the technology. It is trust. Survey after survey puts fear of battery replacement cost at or near the top of the reasons people avoid EVs, even as the replacement rates on modern vehicles have fallen to a fraction of what the early cars saw. Buyer perception is running years behind the hardware.

That is why the quote I gave the Journal holds up. The cars have already made the case. What moves the next wave of buyers is a track record long enough and public enough that the fear stops making sense. Every EV still running strong deep into its life is a data point in that direction, and after a decade of watching this play out, I am convinced the perception gap is the last real hurdle.

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Dad reacting to Tesla FSD Supervised v14.2.2 Video Here

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The last thing is simple. If you live in a hot climate, do not park in the sun if you can help it. Park in the shade, or in a garage if you have one. Baking in the sun all day is hard on any car, but it can have a bit more of an impact on an EV, since heat is one of the things that wears on a battery over time.

As for what I plan to drive next, I honestly am not sure yet. I want to test a lot of different EVs, because with everything new arriving, I am genuinely curious where this goes over the next couple of years. One thing that has impressed me is Tesla's Full Self-Driving (Supervised). If you have not seen the video where I let it drive me 100 miles, go check that out (shown above). It was fascinating, and I even got my 83-year-old father's reaction to the technology, which I think is going to be a big deal for the aging population.

I can see a future where we drive because we want to, not because we have to.

Worth noting, I do hold a very early Rivian R2 reservation. But I do not plan to take delivery of the launch model. I want to wait for the sub-$50,000 configurations before I decide.

So what are you driving right now, and what do you plan to drive next? Let us know down in the comments.

Got questions? Drop a comment I love hearing from all of you.

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A note on sources: The battery-replacement and range-retention figures above come from Recurrent, a battery-analytics company, drawn from its community of more than 30,000 EVs, and from Geotab, a telematics company, drawn from its own fleet data. These are industry analyses, not peer-reviewed academic studies, and the underlying datasets are proprietary. Recurrent notes that its sample is not fully representative of all EVs on the road, that its replacement figures exclude major recalls (such as the Chevrolet Bolt and Hyundai Kona), and that roughly three-quarters of EVs on the road today are too new to show meaningful long-term degradation. I cite this data because it is the best large-scale, real-world evidence currently available, not because it is the final word. Recurrent's full report: How Long Do Electric Car Batteries Last?