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Could this be an affected model 3? 8% battery degradation since June (AWD Model 3) : teslamotors

Half an hour is not a lot of time. I think there's loads of possibilities. For example, when you charge and drive your car, the battery pack heats up. Once you park it, it cools down. While cooling there is lots that could potentially happen. For one, if you already have serious Li plating...

Or imagine we learn in a new study that when filling your gas tank to 100% in 42°C weather, a compound is created by the fuel pressure (bare with me) that can lead to fire. So the manufacturer sends an over-the-air update limiting you to fill the tank by 0.5% per mol of detected compound. But...

by the way: lower cell voltage maximum == lower supercharging speed in CV cycle

You probably tried a few different ways to communicate with them, but to make sure: did you tell the tech specifically that your 100% is not the actual 100%? For example using the quoted sentence or telling them the Ah @ 100% is far less than the 219.4 stated. I guess you tried already, but it...

Yeah that's why I'm saying: apparently the techs cannot see the limitations, because they're talking about the number that corresponds (according to the info I found) to the number before the update.

Well there is the data of 219.4Ah either as the fleet average CAC or your CAC which supposedly is 1.6% below fleet average. According to that tech.

Very interesting reply. They state the battery has 219.4Ah. If I'm not mistaken, when new, it should have 3.4Ah * 74 or about 251.6Ah. (Compare Tesla Model S Lithium Ion Battery 18650 EV Module - 22.8 Volt, 5.3 kWh, EV West - Electric Vehicle Parts, Components, EVSE Charging Stations, Electric...

I'm not sure if somebody posted this already, but what's the affected peoples voltage when supercharging at 90% or higher? Is it 404V or less?

How many do you guys think are affected? I would guess between 50-100 cars.

Maybe you track a certain voltage bump and X creates a very tiny one. Z on the other, which you never saw or noticed, creates a bump 100x larger, so your new X-detection algorithm thinks it's X on steroids instead of detecting it as benign Z. You're technically right. But I wouldn't necessarily...

It sounds to me like some people in this thread are assuming that Tesla can easily flip a switch to switch around your voltage. It's probably not quite as simple. Also their internal communication is probably similarily bad as their external one, so if somebody at the SeC tells you, your battery...

o My reply was more aimed at DJRas than at you. Their software often has bugs and sometimes crashes. For example, when I lose 3G connectivity, which happens often around my area, all bets are off. It is important though to note that I was always able to break, steer, drive, charge, all while...

The detection of condition Z was not a software bug, but an unknown physical condition according to my understanding wk057s post. You cannot test for what you don't know. And by the way, most of lithium plating is reversible, depending on conditions and reactions of plated lithium with the...

My guess: your car was falsely diagnosed with X, so the BMS blocked the upper 30 miles, even though you have Z. A fix for misdiagnosing Z will come asap, which in this case might take a few more weeks, since you don't just slap new code on a fleet of vehicles without thorough testing. I don't...

Imagine this: You're hunting for X, but you unintentionally find something new: Z. Now let's assume you know X and it's actually a really bad thing that can make the battery catch fire randomly. You really wanna keep an eye out for it. You will have to *add* even more code to make sure you can...

The voltage curve is far from linear. At 4.1V you're close to 80% SoC: https://www.researchgate.net/figure/Voltage-of-Lithium-ion-cell-versus-State-of-Charge-28_fig5_289994303

Yes, you are right. It happens at cell voltages lower than 4.2V. I guess my point of view is hard to explain. The surface of the cell is big and there are spots of different resistance, thickness, temperature gradients and so on. These effects can and do lead to the situation that your relative...

Normal battery degradation is caused by growth of the solid electrolyte interface, i.e. electrolyte that reacted with the lithiated graphite electrode. See this video at 15:10 Lithium plating can also cause degradation but is not normal afaik. If you are successful in never ever getting your...

This is not an automated process. And when somebody looked at the new found issues they were probably surprised to find a list of hundreds of affected models or more, so they didn't send out anything yet before investigating further. Sure a notification in that scenario would be nice, to know...

No, I live in an appartment building and cannot charge at home unfortunately. I charge at public AC and ChaDeMo chargers, usually when shopping. My charging philosophy currently is to charge to about 60%. If I need to go far, that brings easily gets me to the next supercharging in any direction...

How often are you storing your car at a high percentage? Say 80/90 or above.

Afaiu, normal degradation means that the SEI and potentially other things like metallic lithium block the surface of the electrodes, reducing the total surface available for the intercalation reaction and therefore reducing the total available capacity, no matter which voltage you charge to. If...

I think that Li Plating and "dendrites" are something they have been looking for from day 1. Dendrites also is not a very specific term. There's different types that have different impacts on the batteries performance. You can find an interesting article about the topic here: Whiskers, surface...

Yes that's exactly what I'm saying in the quote you're quoting. At least as long as it's temporary. There is no reason to assume anything else at the moment. Speculation: To me it sounds like Tesla tried to fix/prevent "X" and expected very few people to be affected and the reduced range to be...

Have you considered, that maybe their internal tools still scale the percentage display to 4.2V i.e. the original 100%? Maybe when you complain and they check your car, they see the original percentage and the shown range and everything looks perfectly normal. For you on the other hand maybe...