this post was submitted on 25 Feb 2025
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Electric cars has less moving parts so it should wear out less as fast. Breaks are used less with regenitive breaking as well. Studies are showing batteries are degrading slower as tech advances, on average about 1.8℅ per year in 2024 from 2.3℅ in 2019. Battery lif e expectancy should be around 15-20 years.
The battery is still a big problem when selling on the used market because there's not really a way to see how much it has been abused, and it's also not really feasible to replace. If the previous owner abused their battery by constantly fast charging, and always charging it to 100% and driving till the battery is completely empty, then the battery can decrease much faster.
My manager has recently bought a used Tesla model 3, and the battery had been abused so much that he only has about 150km of actual range on a full battery. With the advertised range being close to 500km and the car being only 5 years old that seems to be a lot more than 2% per year. Even if you assume that the effective range when new was only half of the advertised range, then that battery has lost nearly 40% of its capacity in 5 years.
Teslas have no QA. Teslas have lied about their advertised range. That said level 3 charging constantly can degrade it faster, data from the research I discussed in the last comment showed that a lot of miles but with no level 3 charging has a negligible affect.
Perhaps when selling an EV there could be an inspection or the manufacturer provide in the software a diagnostic on battery health for buyer awareness still.
Source: https://www.geotab.com/blog/ev-battery-health/
Let's get the government right on that new regulation. With the guys in charge, shouldn't be an issue.
If it lines musks profits it could be of interest right now I guess lol. Selling used teslas doesn't transfer ownership of FSD and stuff so they have to rebuy it, and it could help resell value which buyers put in their decision, so I imagine it could be profitable? That said they are a bunch of idiots so probably not.
Most electric cars are pretty much computers on wheels, and voltages, currents and temperature are constantly monitored. It totally should be possible to log battery health and diagnostic information and generate a battery health report for when the vehicle is sold. But standards would need to be put in place for that to force manufacturers to implement it and to make sure the results are actually meaningful.
Unfortunately Tesla's specifically really don't feel like they're designed to last when looking at their materials choices and build quality (either that or my manager just bought a particularly bad sample, I have to admit it's the only Tesla I ever been inside of) so I don't think having a good reseller experience or longevity is really a part of their business model.
Yeah Tesla goes for range and has been caught lying about it being high. That being said Toyotas promise for theirs was Toyota bZ4X Battery To Retain 90% Capacity After 10 Years
Holy hell ... level 3 hits 50kW? Yeah ... don't do that to your battery.
Level 3 hits over 150kW. 50kW is slow nowadays. Most folks only use them on road trips or in situations they can't charge at home, though. Level 2 is most common. Mine is set to 45 amps and does about 11kW
That's a shitty battery then! Most car manufacturers give an 8 year warrantee with at least 70% capacity on the battery.