Tesla Model 3/Y LFP Battery RANGE LOSS PROBLEM? | 2024 UPDATE!

Is Tesla’s recommendation to charge LFP equipped standard range vehicles to 100% state of charge actually good for the battery life?

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[stevejordan-fdom]

We have 10 year data on old “S” models & Tesla published it. It was 12% degraded after 300, 000 miles in 10 years. This is great outcome. The LFP battery of the recent model 3 & Y should be even better !

[Dubitz]

I have a late 2021 LFP Model 3 that came with 252 miles of range brand new. After 50, 000 miles driven it now estimates 238 miles at 100%, for a rough degradation loss of around 5% (assuming the range estimate is accurate). Not too shabby. I always Level 2 charge around 15 Amps and normally go down to low percentages between charges, while also hitting 100% once per week as recommended by Tesla, and Supercharge a few times a year for road trips.

However I've recently learned that it is better for the life of the batteries to not always be "deep charged" from 0-100%, but rather short slow charges to minimize degradation. So now I just plug in every day and let the car slowly crawl up back to just enough to make it above where I left off percent-wise yesterday (until the end of the week when I charge to 100% again).

[bandicoot]

I have a 2022 M3LR (NMC/A Batt) and a 2022 M3RWD (LFP Batt), both made in China. The LR has covered 38, 000 Km with exactly 5% degradation. The RWD has covered 75, 000 Km with 4.2% degradation. (data out of Tessie App) The LR 99% 7Kw charging (32amp single phase) to 80% capacity and the RWD 70% supercharging to 100% capacity. The LFP battery durability so far has really impressed me with a similar driving range to the NMC/A battery @ 80% capacity. Whadyaknow Elon was right!
If it wasn't for the ocassional road trip I would take the LFP M3 on a cost / hassle per km basis everytime.

[MH-Tesla]

I have Model 3LFP. Purchased June 2023. Has 47, 000 miles on it today. Uber driving about 1800 miles per week. Charge 67% level 2 at home and 33% super charging. Charge to 100% at home daily. As far as I can tell, no degradation yet. But I'm not an expert. I'd never buy anything but an LFP battery EV when driving Uber full time. You'll destroy an NCM battery way too fast. I expect my battery to last 500, 000 miles. FYI, at full charge the car still shows 272 miles of range.

[justice]

I regularly charge my 2022 Model Y RWD with LFP battery to 100% and have 2.4% degradation according to the Tessie app after about 15 months and 26k km of ownership. I drive mostly on the freeway at around 110km per hour and have a daily commute of about 50km one way.

[richardmorin]

Good information. Thank you. I wish I could get a long range LFP equipped Model 3

[STEMFair]

How do you check the actual degradation of the battery? and do supercharging your battery frequently effects battery degradation? thanks

[wililye]

I sold my 2018 Model 3 Long Range, which my wife had reserved in June of last year, to purchase a Rivian. At the time of sale, it had around 61, 000 miles on it. I remember that when I first received the car, it showed a range of almost 320 to 325 miles on a full charge. However, when I sold it, it was showing around 280 miles of range at 100% charge. I didn't use the supercharger much after buying the car, maybe about three times, and I typically charged it to 70% daily, with occasional 100% charges for long-distance trips, about two or three times a month. I've heard people say that the battery now is different from the one I had back then, but I'm not sure about the differences. Nonetheless, I don't think the decrease in range that I experienced is too bad, considering my usage

[chrisfifield]

Tesla didnt start using lfp batteries until 2021 . We got a long time before high mielage data can be collected on lfp batteries . But the technology seems very promising

[CBKaehny]

John, you have to charge NMC batteries to 100% periodically for good BMS calibration. I think folks are over inflating the value of a calibrated BMS.

[PhongNguyen-nzkz]

Beautiful, I am going to go back and charge it 100 percent daily.

[jb]

2022 M3 RWD (LFP) 21K miles in 18 months. Range is now 261 miles (down from 272 which is ~4% range loss). Typically L2 charge to 100% at least 1x/week when down to 20% or before longer drives. SuperCharge 22% overall - but only on road trips - typically from 5-10% up to 70%. On 2nd MidWest winter, and need new tires soon. I wonder if the very cold temps have an effect on battery degradation.

[dustinkarrick]

132k 2022 Model 3. 258 mi at full charge. 5.1% range loss. Pretty close to 2% per 45k.

[syedali]

Most professionally made video on YouTube thanks John 🙏🏻

[arubaga]

It is important to realize charging a LFP battery to 100% is for the purpose of range calibration. I do it 2 times per month at 17 amp setting, then drive as soon as possible to drain the battery from 100% to 90%. For the rest of the time I keep the battery at 60% charged. So far I have very little range degradation. Another tip is never DC fast charge the battery above 80% charged.

[heyyou]

Bought my 2023 M3 with LFP last year. According to Tessie, I have 4.4% degradation at 26k miles. I charge to 100% between 1 to 3 times a week on level 2 chargers. If I miss charging session at work then sometimes Ill supercharge to 100%.

[ar--r]

I have slightly different experience with my 2021 LFP M3. I have charged my car once per week to 100% at home with 11kWh Tesla charger. The degradation after 55000 km is around 5% from 420 km to 401 km of nominal range. But it is also important to check capacity at the start and still available after that 55000 km. It that case, based on the readings from the application I have, degradation is 7.2% (a drop from 55 kWh to 51 kWh still available in the battery pack). Interesting, right? Once per year I do 2500 km trip. I have noticed those supercharger sessions brought the biggest impact on the nominal range drop. The drop stabilized over the last couple of months so that degradation trend discussed also in your video seems to be confirmed: the biggest drop will happen up to 50000 km and then will be slow. However, I am afraid that additional supercharging sessions on the long trips will cause additional degradation of my LFP battery. I keep you posted. If this is indeed confirmed then the charging power also needs to be taken into account when evaluating degradation characteristic of LFP battery.

[lassewestvanghougaard]

It is worth noting that the range estimate fluctuate a lot of the LFP. One week it said 257 Miles of range on my M3 RWD, I was in slight shock but crossed fingers that it was a unbalanced battery issue with the LFP. This week it shows 265 Miles. So depending on the battery balancing, it will show different range estimates. Since I rarely ever charge the car to 100%, it is possible that the BMS doesn't know the state of each individual battery unless it is charged to 100% once in a while.

Also want to note that the car is now completely drained at 0%, I had to get the car tow to nearest supercharger 2.5 miles away. In a couple other instances I had 5 Miles left after hitting 0%, but not anymore. I'm certain that this is due to new software updates. In other words: 0% means 0%.

[lotsad]

LFP is used for solar instalations, where are charged to 100% almost everyday, LFP bateries should last over 6000 cycles when used between 100% - 10%. Also this batteries need time to balance the cells, if you never give time the battery at 100% it wont balance and loose some capacity. The good thing is that this is fixed by leaving some hours charging after hitting 100%

[raghavendradatt]

2022 model 3 rwd at 25k miles. Currently showing 261 miles range. Level 2 charging at 20 amps at work. Only reaching 100% once per week and occasionally twice per week.