98% for max charge?

Tried to charge my X to ‘full’ for long trips and get to 99. Suspect it’s just a BMS calibration issue and doesn’t matter. If it thinks it’s full, it is.

 

My guess is that there is at least one module that is out of balance with the others and may be at a lower voltage, preventing you from hitting 100%. When charging, energy is distributed to all modules equally, and if the others are full, it will stop charging to prevent those from being overcharged. It would be worth a call to Tesla to ensure the pack is not failing.

 

That's why they have battery balancing, which is supposed to start any time the charge level goes above 93%, though they may be doing that at any charge state with the latest update. Alysashley79, you might want to check with Tesla through the app service request feature to make sure battery balancing is occurring, and ask them to perform additional diagnostics.

I'm curious to know what you find out!

 

Has it always done that, or just started doing that recently? Do you get the full rated miles or is it off?

I agree with the other comments, it's probably worth getting a diagnostic done.

 

You can always schedule the service under "charging" - in the description you can be more precise. Generally they will call you for clarification anyway.

 

Same here, happened a update or two ago.

 

I cant get passed 97%. I inquired about it and assume thats it due to bad charging habits which are preventing the battery pack to balance correctly. Im very sporadic with my charging (percentage, home charge, supercharge). I'm being more consistent with charging and will see what happens over the next few weeks. If I still can't get passed 97% I'll be making an appointment.

This also happened recently... I've charged to 100% several times over the summer.

 

Mine did that this weekend, it wouldn't go to 100, I was on a trip.

 

Bring your car in they will replace the pack. Mine went in in October for that. Replaced my 85kwh with a 90kwh, but now since 12/31 it is in again to get yet another replacement.

 

Are you performing relatively deep discharges between the attempts to charge to 100%?

I’ve had this happen a few times over the past 3 years, usually after not charging to 100% for an extended period. A few cycles down to ~20% and back up fixed it every time.

 

I charge to 100% once a month. I discharge to 15% once a week.

Otherwise it's 90% at the start of the day and 30% when I get home 5 days a week. Started happening about 2 patches ago.

 

Let me know if your going to make a service request. I'm not sure if this is part of the capping or not. I'm on version 2019.40.2.1 and I get 4.15 to 4.16V on a 98% charge.

 

I had a mobile tech come out today for a completely unrelated issue, and I brought up my cars inability to charge to 100%. I mentioned battery module/pack failure and he said that it was very unlikely since I don't have any lasting error codes on my screen. He said that he will have Tesla run a remote diag. to see if there are any issues. I did have error messages about a month ago after a supercharing session that said to bring my car into service and it may not re-start. They analyzed the error and could not find any problems. This happened twice in November, and hasnt happened since then.

 

Keep a log of date and time with photos of your dash anytime you have issues. And keep complaining. It took me 5 complaints

 

Sounds good. Once I hear I’ll also post results.