High Battery Vampire Drain

[CyberFishing]

Left my model 3, model y and CT in garage 10 days ago and went for vacation. All had 80% charge and were unplugged. Y and 3 have 70% charge today and CT has 40%.

I remember in 2018 my model 3 had bad phantom loss too. It got better update after update.

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[FutureTruck]

Trucks drop about 5-6 kwh overnight 12 hours
Sentry mode drop about 12-18kwh overnight
Those numbers were consistent for both trucks
That is in climate controlled garages. The amount of power consumed currently is not green and needs to be fixed via software right away or we are going to lose the better for the environment argument against ICE trucks.

 

[Strykerwsu]

If like Rivian will take about a year but now very minimal like your Y and 3.

 

[DumpsterFire]

Is everyone plugged in to a 110v outlet? Get a 240v nema 14-50 this issue should disappear.

Nada. Plugged into a 240v nema.

 

[Mini2nut]

Tesla has some big plans in Q2 to reduce vampire drain by 40%;

https://www.thecooldown.com/green-business/sentry-mode-update-tesla-battery-drain/

 

[Gigahorse]

Tesla has some big plans in Q2 to reduce vampire drain by 40%;

https://www.thecooldown.com/green-business/sentry-mode-update-tesla-battery-drain/

Very much needed, sentry mode is a must while the CT is so new and memeworthy, but sentry killing the battery so fast makes it unusable in a lot of situations. Good news if true.

 

[C T Rick]

If it’s not connected to the internet / WiFi, what could be running while it’s parked?
Rick

 

[Outdoors]

Vampire drain will not be fixed. It is never fixed. Just reduced. It is a intricate dance between ready to go and asleep. It will fix itself via updates. Try not to stress on it. Or stress service. They are literally responding with known issue.....team is working on it. One waving the flag isn't speeding it up.

Older Tesla owners know this. Over time the car gets good to the point of very little drain. I left my car for two weeks at head of a trail in WY. Came back and lost 2 percent.

Enjoy the truck. Tesla is working hard to make it all the truck it needs to be.

 

[starcyber]

Owning my CT for over a week now I'm concerned with the battery drain.. overnight in a matter of 12 hours it will loose ~3% battery!! From looking at the energy overview it's mainly due to "standby" .. I really hope Tesla will fix this, if I'm going out of town for a two week vacation i basically end up with an empty battery!!

Note: I turned every "share data" feature off as well as Sentry mode.

 

[RollingRefrigerator]

Personally I've seen this improving over the 6 weeks that I've had the truck.

Initially I was seeing overnight drops as high as 8% (!!!!), so I've been keeping an eye on it by checking state of charge history on Tessie in the morning. After a few weeks of ownership, I was seeing fairly consistent drops of 2% per night. Over the last week or so, it's been only 1% per night. Still higher than it should be, but acceptable in my opinion. For reference, I left my M3P idle for almost a month after I got my CT, and it only lost ~2% in that time!

No idea what is behind the improvement, or whether there's been an actual change or other factors are at play. But just wanted to let folks know about my anecdotal experience.

 

[espresso-drumbeat]

Yes, I'm seeing substantial improvements over 3 months in idle battery drain and it's consistently now 1% per 24 hours with Sentry off, maybe even less. Unfortunately API battery level precision is only to a whole number, no decimals, which precludes me from more precise tracking.
I log battery level once a day for consistency and long term trends and to avoid excessive access wakes.

 

[CyberGus]

I would speculate that Tesla is gathering significant diagnostic data from the early models, which is uploaded when parked and on wifi.

They'll also need a bunch of FSD training data, too.

 

[espresso-drumbeat]

I would speculate that Tesla is gathering significant diagnostic data from the early models, which is uploaded when parked and on wifi.

They'll also need a bunch of FSD training data, too.

I suspected this too. In early months uploads were daily and measured in GB but noticed recently that uploads have decreased in frequency and volume by a lot - not every day and just few MB, if that

 

[Outdoors]

Remember opting out of sharing data is one more Cybertruck not sending data back to Tesla for FSD. Just a thought.

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