Tesla owners are still enjoying over 90 percent capacity after 160,000 miles.


Tesla Model S

One of the potential big expenses of electric vehicle ownership is the batteries they rely on for power. If they lose a big chunk of their capacity or fail, replacing them won’t be cheap. Therefore, it’s important the batteries they ship with are guaranteed to last a very long time.

For the Model 3, Tesla included a warranty with a 70 percent capacity retention guarantee. Model S and X owners got no such guarantee, but it turns out they really don’t need one.

As Electrek reports, a group of Dutch-Belgium Tesla owners compiled data from over 350 Tesla vehicles to see how well the batteries are holding up. The news is very encouraging.

After 50,000 miles, the Tesla batteries were still achieving 95 percent of their capacity. Averaging out the real-world results showed that losing another 5 percent capacity won’t happen until the vehicle has done at least 160,000 miles, but more likely over 180,000 miles.

If we consider the warranty offered with the Model 3 guarantees above 70 percent capacity, you can see how long the Tesla batteries could last if this gradual degradation continues. It also ties up with what Elon Musk claimed when he said a simulation of the Tesla batteries saw capacity remain above 80 percent even after 500,000 miles traveled.

Of course, keeping the battery in good shape for hundreds of thousands of miles requires looking after it. There’s a lot of advice available regarding what percentage you should recharge up to, how often to charge, and how empty the battery should be before deciding to recharge. The best case seems to be charging daily, never going above 90 percent, and recharging when the battery hits a low of between 30-40 percent.



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