Man tests his 2022 Tesla Model 3 LFP battery's degradation after 78,000 miles to see if he can shatter common EV myth

Published on Aug 09, 2026 at 10:10 AM (UTC+4)
by Henry Kelsall

Last updated on Aug 09, 2026 at 10:10 AM (UTC+4)
Edited by Mason Jones

Man tests his 2022 Tesla Model 3 LFP battery's degradation after 78,000 miles to see if he can shatter common EV myth

A man has given his 2022 Tesla Model 3 LFP EV battery a test to see how much degradation there is after 78,000 miles.

One of the most common myths with EVs is that the batteries degrade massively as time goes on, like a mobile phone.

It has been enough to put people off buying cars like a Tesla. But YouTuber Matt Goes Electric wanted to change that.

He decided to test the degradation on his Tesla Model 3 from 2022, which had done 78,000 miles up to this point, to see what health the battery was in.

This Tesla Model 3 had the LFP pack

The car was bought by the YouTuber’s daughter.

It had been on the road since March 2022, making it four years and three months old.

It is a standard range plus model, and it has the lithium iron phosphate battery, the LFP pack.

The history of the vehicle was unknown.

But they knew was that it had done around 76,000 miles before they bought it.

Teslas of this vintage have a battery health test built into the infotainment system.

It is however a feature that has been removed on some later models.

It initially said the battery was in good health, but Matt wanted to give it a full test to be sure.

The car had to have less than 20 percent battery capacity before the test could begin.

It needed to be connected to an AC charging station.

The test itself took around 15 hours to complete.

What did the test say about the Tesla Model 3?

With the test completed, Matt came to have a look at the results.

It came up stating the battery was 92 percent healthy, after just under 78,000 miles.

That seems like a very good number.

Higher voltage batteries can lose a bit of health quickly, but that then seems to taper off as the battery settles down.

So with a good amount of mileage already on the odometer, this particular Tesla seems to be in very good health.

Many people believe EV batteries will degrade at a vast rate of knots.

Mobile phone batteries, for example, can lose a lot of their health after just two years of use.

On this 2022 Model 3, we have a battery that is nearly at full health with a lot of miles already accumulated.

Massive battery degradation is a myth in EVs

The video proves what many people are now realizing: battery degradation in EVs is largely a myth.

This was proven by a study done by Carla, a Swedish used car marketplace.

We’ve covered the study before, and in it, two cars had over 97 percent of their battery health after doing 62,000 miles.

The two cars were the Kia e-Niro and the Hyundai Kona.

A Tesla Model 3 with an LFP battery in that study had around 93.53 percent of its battery health remaining.

So the results of the YouTuber’s test do seem to tally up.

Combined with the Swedish study, it seems that most EV owners don’t need to worry about their batteries.

Tesla timeline

July 2003: Founders Martin Eberhard and Marc Tarpenning officially incorporate the business

April 2004: Elon Musk leads a $7.5M Series A funding round and becomes board chairman

March 2008: The first production vehicle, the all-electric Roadster, officially launches

June 2010: The EV maker debuts on the NASDAQ and raises $226M in its IPO

June 2012: The groundbreaking Model S luxury sedan enters the global market

September 2015: Tesla Model X is officially released

July 2017: Mass production begins for the more affordable Model 3

March 2020: The Model Y debuts as total vehicle production hits one million

November 2023: First customer deliveries begin for the stainless-steel Cybertruck

2025: The energy division hits record growth driven by massive global battery deployments

2026: Strategic focus shifts heavily toward autonomous driving and the Cybercab platform

Henry joined the Supercar Blondie team in February 2025, and since then has covered a wide array of topics ranging from EVs, American barn finds, and the odd Cold War jet. He’s combined his passion for cars with his keen interest in motorsport and his side hustle as a volunteer steam locomotive fireman at a heritage steam railway.