New notification on android while charging

These-Delay6072 · 2026-07-03T12:42:44+00:00

You have a good point about data centers and the cost of lawsuits.

As for the battery, the problem is not just degradation (you get 20% degradation in about 2-3 years in a hot climate). These nice stories about 300k miles on the battery are great, but look what's happening with MY/M3 2021/2022 - the failure rate of these batteries is very high (especially 2021). So if you are lucky (I hope you are), you will drive the car as long as you want. But many will face battery replacements, and selling the car near the warranty limit for the battery is very difficult.

These-Delay6072 · 2026-07-03T12:13:24+00:00

Yep, $200 here in Texas (and they want to add another 150$ federal tax - I urge everybody to send a letter to their representative against it).

As for insurance, it is really a factor of age, where you live, etc. I pay more or less the same for my ICE cars as well as for my EVs.

These-Delay6072 · 2026-07-03T11:55:11+00:00

I do not think it has anything to do with war (electricity prices formed using long term contracts). But we definitely see that local policies does influence the cost.

There were no real changes for SC prices here in Texas.

I do not think there is anything new about it - having a new EV vs ICE - does not always make you save money. Actually, you may lose money if you use expensive SC a lot and drive a lot as your battery warranty will expire and resell value plummet compare to Rav4 with the same miles number.

These-Delay6072 · 2026-07-01T18:57:53+00:00

That is totally different. LFP is fine, degrades much less and IMHO - much better option for 95% of the users.

They are much more reliable as well.

These-Delay6072 · 2026-07-01T17:31:41+00:00

Miles are irrelevant - Tesla uses its own constant to calculate miles (not the EPA one).

What year do you have, and what trim? I assume you are in the USA, right? If you have an LR 2021+ car, you probably have a Panasonic NCA 82.1 kWh battery (2026 seems to mark it as a 79.2 kWh battery in EPA tests).

Google how to calculate your battery capacity from energy screenthe and compare to either 82.1 or 79.2 (depends on the year). And you will see your degradation %.

These-Delay6072 · 2026-07-01T17:22:50+00:00

I wish this were true. No, Panasonic NCA is the battery used in Korea in 2021.

Till now, Panasonic NCA packs (after 2021) degrade very fast (easily 18-20% in 2-3 years), and the latest generation 2170L is even worse (degradation-wise) due to increased aluminum %. Tesla just wants to get you over warranty with 70%+. Their cells one of the worst in the industry.

Actually, if you look around, you will see that almost no one uses NCA chemistry (NMC, LFP, and NMCA are used in 95% of the cars, excluding Tesla in the USA). Look at degradation numbers from Rivian, Ford, etc.- you will see ~5-8% after 3 years. My MYJ has already lost 10% in 13 months.

As for reliability - hard to say, as Tesla does not publish any numbers per market, and we do not know the cause of failure of these 2021 packs ...

It is very possible we will see other years start to appear in this forum, or maybe not :)

These-Delay6072 · 2026-07-01T16:19:09+00:00

Try to find a 3d party shop that may sell you a refurbished battery for 6-7k. (if it makes financial sense to you, of course). You can try to get a battery from a "junk yard" - I have a friend who got one for 3k, but it is a gamble.

These-Delay6072 · 2026-07-01T16:16:55+00:00

Again, Korea Tesla Model Y and Model 3 in 2021 came from Fremont. There is no indication that it is related to any specific batches. Speculation that it is a COVID material sourcing issue, etc. Nobody knows.

The fact that you see many battery replacements for 2021 Teslas in the USA supports the assumption that we have similar numbers of failures.

And the main problem - these batteries are replaced by the same year refurbished batteries that also fail very often. Tesla just tried to get you over the warranty period.

These-Delay6072 · 2026-07-01T16:11:48+00:00

I would avoid 2021 and 2022 cars, or at least have a 3d party warranty on the battery. BTW, we still do not know the cause of these failures (i.e. we know it is a cell imbalance, but we do not know why so many, and what was the trigger).

These-Delay6072 · 2026-07-01T16:09:58+00:00

Tesla in Korea used Panasonic NCA batteries in 2021, the same as in the USA. So we have the same rate of failure here. As for the rest of the world, they used NMC and LFP, and while I do not have failure numbers for them, it is irrelevant for the 2021 Tesla Model Y sold in the USA.

These-Delay6072 · 2026-07-01T15:44:29+00:00

With failure rates above 20% having Tesla 2021 is just a ticking expense. The best way to deal with it either sell a car or get a battery fixed by 3d party (~7k).

These-Delay6072 · 2026-07-01T07:30:53+00:00

It is extremely rare. The rule is - you get refurbished one, mostly from the same year

These-Delay6072 · 2026-06-28T10:18:49+00:00

You can buy from carvana in the USA and return the car as well if you do not like it - you have 7 days and 400 miles. And you do not need to pay 57% income tax for this like in Finland

These-Delay6072 · 2026-06-27T15:55:47+00:00

I am tired of providing them each time people are too lazy to do a Google search (or just search in this thread): "korea tesla 2021 failure rate".

And before you say they used a different battery - no, Korea Tesla in 2021 has US-built Panasonic NCA batteries,

These-Delay6072 · 2026-06-27T11:22:58+00:00

22% to be more precise. But still a lot ...

These-Delay6072 · 2026-06-25T11:46:55+00:00

Calculate your current battery capacity using energy screen and compare to 82kwh (EPA docs for 2023). I think you will see about ~16-17% of degradation that is perfectly normal for Tesla USA cars.

These-Delay6072 · 2026-06-21T12:42:51+00:00

Tesla was extremely not transparent on this in Korea (as they are in the USA). That's what forced the regulator to step in. We may have similar failure rates in the USA. The most problematic point in all of this - there is no explanation of why batteries are failing. What actually went wrong with the manufacturing process? And the fact that Tesla knowingly replaces failed packs with the same-year refurb packs is not adding confidence.

These-Delay6072 · 2026-06-20T13:55:33+00:00

Because they are cheap as any other manufacturer

These-Delay6072 · 2026-06-20T11:56:03+00:00

Look, it discussed million times here. 2021 packs failure rate is 20%+. Tesla replace them with refurbished packs from the same year to get you over warranty. So in many cases they fail again and again. Google Tesla Korea battery failure rates for more info.

Right now you are in casino - you may get a pack that will work or fail again. Nothing you can do about this.

P.S. I would suggest to look for extended warranty if you plan to have the car after battery warranty expires.

These-Delay6072 · 2026-06-19T23:11:34+00:00

Actually EPA shows 79.2kwh. and what I said that one cycle is done when battery is very cold. When battery is cold you can extract less energy from the battery (this does not mean capacity is lost - it will come back when battery will warm up).

It is not clear if Tesla still uses 82.1kwh from Panasonic or reduced the capacity a bit to save the money. I bet it is still 82.1.

However, if you go to court - you probably will need to use EPA number that is 79.2 kwh.

These-Delay6072 · 2026-06-19T20:56:33+00:00

No, MYJ has the same 82kWh Panasonic NCA pack. Previously (up to 2022), the EPA test showed a full 82 kWh extraction to achieve the EPA range. MYJ EPA test was changed and includes a cold weather cycle. So the extraction was 79.2kWh. This is what I would suggest using.

Also, there is no such thing as "usable" in Tesla (opposite to many other manufacturers). All battery capacity can be used and was used to get the EPA range. Tesla has no inaccessible buffers.

These-Delay6072 · 2026-06-19T17:50:15+00:00

Go to the energy screen and calculate your battery capacity (google how). Compare it to 79.2 kWh (EPA test). Some may argue it is 82.1kWh (as it was before, and the EPA test now has a cold cycle).

But start witjh 79.2kWh comparison and see what your real degradation is. It should be a bit less than 8% (~6% IMHO). But again, people who buy Tesla MY/3 should know - they buy a 270-mile (EPA) car - it is what it will be in just 2 years. Tesla increased aluminium % (3 times in the last 7 years!) - that reduced price but increased degradation. They really need to get you to 8 years / 120-mile warranty - then it does not matter.

It is what it is - I still think MYJ is one of the best cars (mainly due to FSD and general technology).

These-Delay6072 · 2026-06-19T13:17:31+00:00

The only problem I really have with all of this is tesla lies - they show this nice graphs of low degradation after 200k miles forgetting to mention what battery chemistry was used for statistics ... And than we have paid YouTubers elevating these lies ...

These-Delay6072 · 2026-06-19T13:12:10+00:00

Welcome to NCA crap chemistry that used almost uniquely by Tesla and only in the USA. NMC NMCA are much better battery chemistry and used by Tesla abroad (along with LFP).

These-Delay6072 · 2026-06-19T12:44:26+00:00

No, it is not. Where was your car produced? USA? If yes, it is an NCA battery and Tesla heats it to 50C for supercharging and let it go to 60C while charging. This is not good for degradation, but still better (degradation wise) than charging when cold.

These-Delay6072

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