Very strange vampire battery drain, need experts help.

[doberman]

Hello ladies and gentlemen, guys and girls.
Need some advice and help.
Tesla model 3 , Long range, 2018 with 3466 mi. Software version 2019.24.4 No external applications running on the phone, even original Tesla app is signed out and delited. Mobile access turned off. No sentry mode running. No overheat cabin protection enabled. Basically everything is off and I use key card to use the car. (I try to narrow dawn what can be the problem )
I live in North Bay, California. Day temperature 85-95 F, nights 60-65F
Very strange vampire drain going on . At work car parked outside, no garage available. In 8 hours car will lose 10-11 mi in 8 hours sitting parked, same thing every single day. Sometimes I have to go to work at night for couple of hours and car will lose 4-5 miles in a single hour sitting outside. At the same time , if parked in my home garage and not driven for 4 days, unplugged, it will only lose 1 mi a day, or 4 mi in 4 days. did this experiment couple of times already with simular results. I did notice this behavior only lately on last couple of software updates. Hard reboot doesn't help at all. I heard about very popular service TeslaFi, but didn't used it yet.
Experts, maybe you can shed some light what's going on and what can be done. Any advice or help would be greatly appreciated.

 

[Wennfred]

Turn off Data sharing. That was my last ditch and it worked.

Fred

 

[doberman]

I did . Data sharing is off, mobile access is off as well.

 

[Wennfred]

Then turn off your WiFi see it that works, other then that... pretty strange.

Fred

 

[doberman]

At work, car doesn't connect to WiFi at all. At home in garage, with WiFi on , very minimal drain, 1 mi in 24 hours without driving. As soon as I drive and park at work, drain begins.

 

[doberman]

I do appreciate your help, Fred.

 

[Saghost]

Are you positive that Sentry mode is disabled?

That pattern looks exactly like what I'd expect if Sentry is on at work and off at home.

 

[doberman]

100% positive. I do check before I leave the car,I even turn off AC manually, before lock the car with a key card. Everything is completely off.

 

[Wennfred]

And “Keep Climate On” is also off, it’s different from Cabin Overheat Protection, and lastly TeslaCam is turned off?

Check Data Sharing again, make sure you have “No” checked off in both boxes. This turns back on when using that Nav Maps


Fred

 

[doberman]

keep "Climate On " is Off in settings.
TeslaCam is not turn off.

 

[doberman]

I did check, just now , Data Sharing is No check marks on both fields. Now, to turn Teslacam off, just hit the red small camera icon before leaving the car?

 

[Wennfred]

I did check, just now , Data Sharing is No check marks on both fields. Now, to turn Teslacam off, just hit the red small camera icon before leaving the car?

Yes press and hold the camera icon until you see a flash under your finger, then let go.. it will take a few seconds before going grey.

Fred

 

[jmaddr]

Man, that does sound like Sentry mode like @Saghost mentioned. Take out your USB drive to be sure (along with turning it off in settings). Also, double check sentry operation next time you walk up to your car. Before using your keycard, tap on the side window with your finger with the keycard sitting 10 feet or so away, with you in full view of the side repeaters and see if the car horn honks, turns on it's parking lights and you get the "HAL 2000" on the screen. If still nothing, I'm stumped.

Well, what's your car's mobile signal strength at work? Even though you disable mobile access, I do believe it's still up and connected to the service provider (ATT maybe?) for Tesla to get in. I know my mobile phone's battery TANKS quickly in areas of low signal strength.

Oh, (sorry, one more thing...) I would probably disable WiFi completely too. All you will lose is access to software downloads but that should be fine while you troubleshoot.

 

[jjrandorin]

OP

I would also suggest turning off wifi completely while you check. Reading your first post, as others said it sounds like sentry mode loss, but you checked that. The other thing that stands out to me is the fact that it drains at work, but not at home.

This sounds like data sharing or wifi (bad cell connection at work by the car, and / or wifi trying to connect but not able to. Have you EVER joined wifi at work (your companies guest wifi etc? Go into the wifi settings to ensure that there is no saved connection for where you are at work, and turn off data sharing.

 

[Saghost]

As a diagnostic effort, turn mobile access back on and after the car has been parked at work for a while, go into the app from your phone and see if Sentry mode somehow turned itself back on?

I can't figure out why it would be different at home from at work unless it's Sentry - the data theory is possible, but I wouldn't expect that to eat as much power as you're losing.

 

[Big Earl]

Maybe the car needs to do some battery cooling in the middle of the day due to the hot temperatures.

 

[ItsNotAboutTheMoney]

As a diagnostic effort, turn mobile access back on and after the car has been parked at work for a while, go into the app from your phone and see if Sentry mode somehow turned itself back on?

I can't figure out why it would be different at home from at work unless it's Sentry - the data theory is possible, but I wouldn't expect that to eat as much power as you're losing.

Any other location-based features that could prevent the car from turning off properly?
Not following climate settings properly, and the high daytime temperatures causing climate drain?

OP, how is the car's internal temperatures at the end of the work day?

Any remote monitoring software?

 

[doberman]

Yes press and hold the camera icon until you see a flash under your finger, then let go.. it will take a few seconds before going grey.

Fred

I’ll do more digging today at work location. Will turn TeslaCam off and will remove USB stick out. We will see what’s gonna happen at the end of the day. Will report.

 

[doberman]

Any other location-based features that could prevent the car from turning off properly?
Not following climate settings properly, and the high daytime temperatures causing climate drain?

OP, how is the car's internal temperatures at the end of the work day?

Any remote monitoring software?

No remote software at all.
Temperature is normal inside the cabin at the end of the day, because my working hours 15:30 till 23:30.

 

[doberman]

Maybe the car needs to do some battery cooling in the middle of the day due to the hot temperatures.

I’ was thinking the same thing, BUT as I mention before, sometimes at night, at a work place it loses 4-5 miles an hour just parked. Temperature at night 60-65F.