How many charge to 100%

[SCSEV]

I cannot speak with any scientific knowledge but Elon once said that a plugged in tesla is a happy tesla, I suppose that is true of any ev. the health of the battery is well served keeping it within a band of 25-80% SOC. I personally would want my car ready to go at any time so I generally keep it closer to 80%

Yep, 80% for me. I plug in every day/night.

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[epirali]

I cannot speak with any scientific knowledge but Elon once said that a plugged in tesla is a happy tesla, I suppose that is true of any ev. the health of the battery is well served keeping it within a band of 25-80% SOC. I personally would want my car ready to go at any time so I generally keep it closer to 80%

Well I hate to say it but he is wrong. All LiIon battery technology is similar. Its not something to worry about TOO MUCH, but ideal behaviour is to keep the cells at 30-35% when not used, then charge only to what you need right before you use it. And do not leave the car too long below 30.

The one Achilles heal of all Teslas is phantom drain, so you CAN NOT leave a Tesla unplugged for long periods of time. They will drain their batteries to 0, brick them and then you are in for a big replacement cost. That is why he says that. Others EVs I have had I have left for 2 months and have come back to an SOC within 1% of when I left. Not with Teslas.

Obviously this is too much of a pain, and its all a matter of various longevity trade offs. The ideal is lots of shallow charges rather than fewer deep charge/discharge. But at the end of the day the battery is there to be used.

Porsche seems to indicate the batteries are pretty happy when charged up to 85%. I would use 100% when I needed it.

 

[John89]

Well I hate to say it but he is wrong. All LiIon battery technology is similar. Its not something to worry about TOO MUCH, but ideal behaviour is to keep the cells at 30-35% when not used, then charge only to what you need right before you use it. And do not leave the car too long below 30.

The one Achilles heal of all Teslas is phantom drain, so you CAN NOT leave a Tesla unplugged for long periods of time. They will drain their batteries to 0, brick them and then you are in for a big replacement cost. That is why he says that. Others EVs I have had I have left for 2 months and have come back to an SOC within 1% of when I left. Not with Teslas.

Obviously this is too much of a pain, and its all a matter of various longevity trade offs. The ideal is lots of shallow charges rather than fewer deep charge/discharge. But at the end of the day the battery is there to be used.

Porsche seems to indicate the batteries are pretty happy when charged up to 85%. I would use 100% when I needed it.

From what I have been told by Porsche, I agree wholeheartedly. And without being able to go "much farther" in a public forum- what you are expressing and what I have been told are NOT found in the owners manual.

 

[epirali]

From what I have been told by Porsche, I agree wholeheartedly. And without being able to go "much farther" in a public forum- what you are expressing and what I have been told are NOT found in the owners manual.

Well to be fair there are MANY best practices that also apply to ICE vehicles and they are NOT listed in the manual either. So I wouldn’t really get too worked up about it. They do talk about not charging above 85% unless needed for longevity. This is really ”inside baseball” kind of stuff. Those of us who lived through the early days of this (Nissan Leaf, I am looking at you) with 70 miles total range and early heat degerdations became battery geeks. But for any Taycan (or modern EV owner) I just say do what the manual says and how you like to use your car and don’t worry about it too much. Think of range as a LONG TERM consumable, just like rings and power and efficiency of an ICE engine over time.

 

[feye]

I cannot speak with any scientific knowledge but Elon once said that a plugged in tesla is a happy tesla, I suppose that is true of any ev.

I don't think so, this only applies to T because their phantom drain is so high...

 

[feye]

Well to be fair there are MANY best practices that also apply to ICE vehicles and they are NOT listed in the manual either.

True, it's a car not a Tamagotchi!

 

[kort]

Well I hate to say it but he is wrong. All LiIon battery technology is similar. Its not something to worry about TOO MUCH, but ideal behaviour is to keep the cells at 30-35% when not used, then charge only to what you need right before you use it. And do not leave the car too long below 30.

The one Achilles heal of all Teslas is phantom drain, so you CAN NOT leave a Tesla unplugged for long periods of time. They will drain their batteries to 0, brick them and then you are in for a big replacement cost. That is why he says that. Others EVs I have had I have left for 2 months and have come back to an SOC within 1% of when I left. Not with Teslas.

Obviously this is too much of a pain, and its all a matter of various longevity trade offs. The ideal is lots of shallow charges rather than fewer deep charge/discharge. But at the end of the day the battery is there to be used.

Porsche seems to indicate the batteries are pretty happy when charged up to 85%. I would use 100% when I needed it.

none of this is what I've experienced. my phantom drain on my last tesla, a 2018 model 3 LR Performance was only a couple of miles a night, the taycan will also lose a couple of miles a night.
if a tesla is losing more than that range it is because something is on that is draining range, such as third party apps that poll the car, cabin heating/cooling left on and sentry mode will eat a mile an hour of range.
as for leaving the car unplugged for a long time causing the car to be bricked, sorry but that is just not correct. my car sat unplugged at a body shop for almost 6 months, the charge port was damaged and the car could not be charged. when the repairs were complete the car was taken from the body shop to the tesla service center for final inspection, tesla charged the car up and the car and battery were just fine, like nothing happened.
I do not know where you got your info from but it is just not correct.

https://tesla-info.com/blog/vampire-battery-drain.php

 

[kort]

I don't think so, this only applies to T because their phantom drain is so high...

the phantom drain is not high unless you have third party apps running, query the car often or use sentry mode. my phantom drain was a couple of mile per night. the phantom drain in my taycan is a couple of miles a night.

 

[epirali]

Kort: whether its an app or access its still the car. I am more curious how you are having phantom drain. Are you looking at the actual SOC or the miles. I have left my Taycan for weeks. Usually I will leave it plugged in with a minimum profile, but other times I have not and have not seen what you are seeing.

I will say I have not had direct experience with the Model 3, it may be the phantom drain is much less than pervious models. But the previous ones really would drain to empty over a few weeks and they were NOT advised to be left long term if not plugged in. This is where the “Elon-ism” has come from.

 

[kort]

I will say I have not had direct experience with the Model 3, it may be the phantom drain is much less than pervious models. But the previous ones really would drain to empty over a few weeks and they were NOT advised to be left long term if not plugged in. This is where the “Elon-ism” has come from.

despite that self admitted lack of knowledge you made some very strong assertions.

I have been driving teslas since 2014, only once did I experience a massive vampire drain which was caused by the car being outside overnight in 5 degree F weather, I lost almost 25 miles that night, I called tesla and they said that was normal, the battery was heating to protect itself, the fix was to keep the car plugged in.

the taycan reports a loss of a mile or two overnight when not plugged in.

 

[JimBob]

The indicated miles is a bit of a fishy number. It's based on assumptions and can be inaccurate. Using this to check for battery drain could be very inaccurate. The best number to rely on is SOC as every thing stems from this. The SOC should not be dropping much when the car is unplugged for long periods of time unless you have accidentally set a location based timer and you are at that location.

 

[epirali]

despite that self admitted lack of knowledge you made some very strong assertions.

I have been driving teslas since 2014, only once did I experience a massive vampire drain which was caused by the car being outside overnight in 5 degree F weather, I lost almost 25 miles that night, I called tesla and they said that was normal, the battery was heating to protect itself, the fix was to keep the car plugged in.

the taycan reports a loss of a mile or two overnight when not plugged in.

I didn’t “admit lack of self knowledge,“ I said I have no direct experience with the Model 3. I would like to gently suggest the tone of you post is not the best. I have a great deal of experience with EVs, including Teslas. And I own a Tesla even now. The vampire drain issue on Teslas is well known, well documented and a REAL issue. Your feeling about the matter doesn’t change that. Attacking me absolutely DOES NOT change that. So even without “direct knowledge of Model 3s” it simply took one minute to find this:

https://forums.tesla.com/discussion/182314/consistent-daily-phantom-drain

Keeping a car plugged in to counter a design flaw doesn’t change that either. The vampire drain is NOT from battery protection, which would happen to ANY car. And it is NOT from telemetrics which is the excuse given by a lot of Tesla fan boys. That is simply silly. NOTHING in the telemetrics runs off the traction battery, it runs off the 12v. EVEN if the systems needed to “top up” the battery you are talking about a 70 KWHr battery. Do the math and you will see it can’t be that.

It is most likely from systems that don’t fully and properly shut off, and the ever running Tesla battery thermal management systems.

Keep in mind that it should be perfectly reasonable to store an EV for a period of time. And having it “plugged in” should not be a requirement. All other EVs I have owned have NOT required being actively plugged in for storage. That has NOT been the case with Teslas.

 

[Kingske]

I lost only 1% of SoC after leaving my Taycan untouched for a month:

https://www.taycanforum.com/forum/threads/only-1-soc-loss-after-a-month-of-immobility.4523/

 

[feye]

the phantom drain is not high unless you have third party apps running, query the car often or use sentry mode. my phantom drain was a couple of mile per night. the phantom drain in my taycan is a couple of miles a night.

If your phantom drain is so high, have it checked by the dealer.

Me and others have no phantom drain:

https://www.taycanforum.com/forum/threads/long-term-storage.2404/post-49394

 

[kort]

If your phantom drain is so high, have it checked by the dealer.

Me and others have no phantom drain:

https://www.taycanforum.com/forum/threads/long-term-storage.2404/post-49394

a mile or two a night is not very high

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