As a new tesla owner, of a MYLR 2023, I would love to know the answer to this too. I charge mine to 70 or 75% daily and limit the amps to 16 over night instead of the 48 that I can do if needed. If I plan a long trip the next day, I bump the charging to 90% before leaving. Only once since I had the car these past 2 months have I charted to 100%

 

Or is it appearing based on usage pattern, because I'm not driving as much?

No, it doesn't appear based on usage patter. I set up my charging limit to 75% and use Stats to boost the charge to 80% in the morning. I just tried my app and indeed, the moment I try to increase the charging limit, the "80% charging message" appears. I don't remember seeing it before the last app update.
I always charged my Bolt EV to 75-80% for usual driving, the range it had at that SOC was enough in my daily driving. I always charge to 100% when I am ready to go in a long trip.
In general, the Li-Ion batteries don't like to sit a long time @ 100% SOC or at very low (1-2%) SOC. The best is for them to operate in the 45-65% SOC range.
I wouldn't mind about the message in the app though. I wonder if the people who have the LFP batteries have the same message in the app. It would be dumb to say the least it they get the same message.

 

Well, it does say it’s a “tip” so maybe they’re just putting general info there to help those who don’t crawl the interwebs for arcane knowledge.

 

Mine still shows 90%. Could it be dependent on the vehicles software version? I’m on the FSD beta. If you’re not, @JasonF, I’m guessing you’re ahead of me.

 

View attachment 49521

Mine still shows 90%. Could it be dependent on the vehicles software version? I’m on the FSD beta. If you’re not, @JasonF, I’m guessing you’re ahead of me.

Every person who has the FSD package, is on a Beta version. FSD as currently conceived will never advance to a production release - the FSD goal is beyond the current state of the art for software.

I also got the "charge to 80% for daily driving" message from the Tesla app (2023 Model Y).

 

Mine still shows 90%. Could it be dependent on the vehicles software version? I’m on the FSD beta. If you’re not, @JasonF, I’m guessing you’re ahead of me.

What app version you have ?
The one with the 80% tip is 4.23.6 build 1844.

 

Mine still shows 90%. Could it be dependent on the vehicles software version? I’m on the FSD beta. If you’re not, @JasonF, I’m guessing you’re ahead of me.

The app isn't necessarily synced with the software version, with the exception of new features. I would guess the percentage warning would be the same as long as your app version is the same. For the record though I'm on 2023.26.8 firmware, and the app is version 4.23.6 (build 1844).

I used to get the 90% message. The sudden change makes me wonder if it has to do with a Tesla internal decision or if it's based on the age of the car and battery, or if it's based on a more personal "your usage pattern indicates you might be shortening the life of the battery, so use 80% from now on".

 

2023.7.20 firmware
4.23.6 - 1844

Don’t be surprised if it’s firmware based. We’ve seen it before, where a firmware broke charge notifications in the app.

 

Don’t be surprised if it’s firmware based. We’ve seen it before, where a firmware broke charge notifications in the app.

What made me think age is my car is almost exactly a month past 5 years old, and maybe it has a feature like Apple now that says your battery is older, and we're going to change recommendations to keep it lasting longer. Not that it's a terrible thing, I'm just curious if that's the case.

 

For reference, my 3 was built 6/2018 so over 5 years and month old too.

 

I am putting my chips on what @iChris93 said… that it is probably different firmware versions in the car that pushes the different “tip” in the app, as we all seem to be on the same app version and some get the 80% and some get the 90%, not related to age of car, nor does it seem to be the use of the car. I am in the 90% camp with my 5 year old, seldom used FSD Beta model 3, which I charge to 90% once or twice a month. Interestingly, I just noticed that the model X doesn’t give any tip. They want me to kill its battery. 😏

 

So that leaves firmware version, usage pattern, or “our internal data shows that 90% led to higher degredation”. Or possibly 2 out of 3 of those.

 

I think your 1 and 3 are basically the same thing. That if they have decided 80% is best, they will be rolling out that changed suggestion in future firmware versions.

You and me both saying our model 3’s are low use, yet you having 80% and mine still showing 90%, seems to rule out usage as the key variable. But if there is a variable, how about charging? How often do you charge? I only charge 1 or 2 times a month. (And BTW at almost 5 years I still have the original 12V battery. I think my infrequent charging may be related to longevity of the 12V.)

 

What app version you have ?
The one with the 80% tip is 4.23.6 build 1844.

I have same version app.. 2022 M3 RWD LFP I do not get that message, mine says “charge limit 100%” with no other reminder.

 

2022 M3 RWD LFP I do not get that message, mine says “charge limit 100%” with no other reminder.

I think yours being an LFP is why you have no suggestion to limit the charge. I am curious what your in car display shows on the charging screen?

 

You and me both saying our model 3’s are low use, yet you having 80% and mine still showing 90%, seems to rule out usage as the key variable. But if there is a variable, how about charging? How often do you charge? I only charge 1 or 2 times a month. (And BTW at almost 5 years I still have the original 12V battery. I think my infrequent charging may be related to longevity of the 12V.)

Mine is plugged in when it's not being driven, but it's set to only charge after 10 pm.

 

I think yours being an LFP is why you have no suggestion to limit the charge. I am curious what your in car display shows on the charging screen?

 

VERY INTERESTING!

I have 2 2023 Model Y Long Range cars
Gray Freemont built in December 2023 shows 80% recommendation
White Austin built in March 2023 shows 90% recommendation.

When we took delivery of the Gray Freemont car Tesla had it charged to 80%
When we took delivery of the White Austin car Tesla had it charged to 90%

 

So it appears to be “vehicle” and “age of vehicle” specific. That’s impressive.

My car is new and has the LFP battery. It always shows 100% except when I’m at a supercharger at a “busy time” and it suggests 80% to reduce wait times for others. If slots are available I can manually adjust higher.

 

@JerryR, what firmware version(s) are your cars?

 

4.23.6 build 1844.

 

So we may safely say that based on the battery build, the warning is different :

• LFP : no warning (normal)
• Freemont & MIC : 80%
• Austin : 90%

 

So we may safely say that based on the type of battery, the warning is different :

• LFP : no warning (normal)
• Freemont & MIC : 80%
• Austin : 90%

Not quite - based on the OP's posting, it appears that vehicle/battery age and/or mileage may be taken into consideration. It suggested 90% for their Fremont built Model 3 until 5 years of age (or certain mileage?) then 80%. Unsure if it's truly based on age or mileage but there appears to be a correlation.

Would be interesting to hear from others who are close to (or recently hit) 5 years to see if they've experienced similar.

 

Freemont & MIC : 80

Except both my Fremont 3 and Y show 90%.

 

Def seems to be vehicle version related.

My 2019 M3 (2023.7.20) shows 90%, but my wife’s MY (2023.26.8) shows 80%. Yet my brothers Y (2023.7.20) shows 90%. All Fremont built.

Interestingly, a 2020 X on 2023.7.20 doesn’t show ANY recommendation.

 

… it appears that vehicle/battery age and/or mileage may be taken into consideration.

No, it doesn’t. I have the same 80% battery limit on my MIC June 2023 Tesla M3.

 

Gray Freemont built in December 2023 shows 80% recommendation
White Austin built in March 2023 shows 90% recommendation.

Except both my Fremont 3 and Y show 90%.

Interesting. @iChris93 Are yours Long Range ?
I wonder if it’s not Panasonic vs LG Chem vs … vs LFP

 

Interesting. @iChris93 Are yours Long Range ?
I wonder if it’s not Panasonic vs LG Chem vs … vs LFP

Both LR. I still believe this is tied to vehicle firmware.

 

@voldar @iChris93 I stand corrected. Now I'm more curious. Is it the same battery make up? Could mileage be a factor?

 

3 has over 72k miles
Y has over 12k miles

 

@voldar @iChris93 I stand corrected. Now I'm more curious. Is it the same battery make up? Could mileage be a factor?

I doubt it since I have very low mileage for a 5 year old car. It could be usage patterns, or number of battery cycles, or age, or maybe even a variety of those factors go into a calculation that determines if you need to lower your daily charging.

Kind of like a “your battery shows risk factors of having higher than normal degredation in the future”. Or maybe that is the criteria, if the battery has slightly higher than normal degredation, the point being to try and slow it down so it doesn’t end up where extrapolation puts it in the future.

 

Does anyone on firmware before 2023.26 show the 80% suggestion? If Tesla ever gets around to updating the FSD beta to 2023.26, or newer, then I can tell you if my suggestion goes to 80%. Until then, the only way to test my hypothesis is to see if anyone with firmware before 2023.26 shows the 80% suggestion.