Tesla Model S that clocked 430,000 miles undergoes battery inspection, reveals 28% battery degradation after 8 years of heavy use

[A]

The problem with these "case studies" is that we all have owned laptops, tablets and phones.  The car batteries are EXACTLY THE SAME as those devices.  And we all know that after 3 years the battery is DOA. I'll take first hand experience over propaganda any day.

Talk about ignorance, your logic is the same as saying humans live only 2 years because mice are also mammals and live only 2 years

No, the batteries in laptops, tablets and phones are NOT exactly the same as the ones in EVs. Lithium ion is just a generic name for multiple different batteries.

Our electronic devices most often use LCO chemistry which is known to be energy dense but shorter lifespan. Where as EVs tend to use NCA, NMC and LFP chemistry and in some rare cases LTO. These chemistry are less energy dense, but have longer lifespan, especially LFP and LTO. LTO can easily last 50+ years

On top of that, there are other things that kill your battery in a laptop, tablets and phones. Things like:

1. EV batteries have thermal management systems that keep the battery cool. The #1 reason for laptop battery failure is the heat. It is why it sucks so much they stopped making removable laptop batteries, because you can easily triple the life of your battery of you take it out when using the laptop in desktop mode. This is also why Nissan Leaf has been famous for having batteries die early, cause they refuse to include a passive liquid coolant

To compare it to ICE cars, try running your ICE engine without coolant and see how long it lasts. If you are unlucky, your engine could break within minutes. That is what laptops, tablets and phones are, engines running without coolant. They just don't get hot enough to break within minutes, but they get hot enough that the heat causes cracks lowering the lifespan of the battery

2. Batteries lifespan also depends a lot on how you cycle them, for laptops, tablets, and phones we are all used to deep cycling them, for EVs you rarely deep cycle them as you often times recharge when you get home. Best practice is to charge to around 80% unless you are going on a long trip

3. When a battery is set to 100%, it isn't actually 100%. Most set their 100% at 80-95%. Many laptop, tablet and phone manufacturers intentionally set your battery to be a higher percent which gives you longer lifespan upfront but it suffers from bigger degradation. That is because they want you to buy a new one, so called "planned obsolescence". Most come with 1 year warranty, and if you read the fine print, many often say they only give 6 month warranty on the battery!

In comparison, EVs set far more conservative numbers, because the batteries have 8-10 years warranty. So they do whatever it takes to insure the battery lasts longer than 8-10 years

[Randomboy]

But you replace a phone with 20% battery degraded after 2 years.

So these stats for a tesla are good.
8 years and 450 k km? Amazing performance from tesla. Now just change the car battery.