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by YZF 312 days ago
Modern batteries can last a long while though. If you take care of it and mostly keep it between 25-75% and don't supercharge it too often. There are Teslas with more than 300K miles on the original battery.

I have a model 3 with ~80K kilometers and the battery is as good as new. 2018 model. For someone that drives 10-15K km a year there's maybe 30 years more driving on this battery (400K km).

My previous ICE car had two head gasket replacements in the 10 years I owned it. I also had to replace the entire engine. Oil changes. Brake pads/discs, CV joints... So far the EV is way ahead and based on the current battery degradation should remain ahead.

1 comments

> If you take care of it and mostly keep it between 25-75% and don't supercharge it too often

For used cars, you don’t know what the previous owner did.

> For someone that drives 10-15K km a year there's maybe 30 years more driving on this battery (400K km).

EV battery life is more related to calendar age, rather than number of charge cycles and C charging rate.

> EV battery life is more related to calendar age, rather than number of charge cycles and C charging rate.

That seems to be contrary to common belief. It's the cycles that deteriorate the cathode/anode.

I would like to read up on your source

For a Tesla with under-the-hood/enforced telemetry, I guess you could actually know what the previous owner did.
You have battery health stats which can reflect poor charging habits of the previous owner.