Model 3 crazy vampire drain

[diamond.g]

I think 1 kWh is a lot of energy to be pissing away, that's all.

Sounds like there is a market for a 12v disconnect for the Model 3.

 

[seattlite2004]

Sounds like there is a market for a 12v disconnect for the Model 3.

But then "system tests" wont happen:

I think folks just need to deal with it. Certain "system tests" might require more processing than others...thus the disparity in reported "vampire drain". Its a Model 3 "feature".....just gotta factor the additional power requirements/consumption in day to day activities.

 

[TexasEV]

And it’s not unique to the Model 3. The Model S and X have vampire drain as well, which used to be worse when they first came out. It’s just that for some reason the complaints by Model 3 owners have been an order of magnitude greater than that of Model S and X owners about vampire drain.

 

[fnce_prof]

But then "system tests" wont happen:
View attachment 328894

I think folks just need to deal with it. Certain "system tests" might require more processing than others...thus the disparity in reported "vampire drain". Its a Model 3 "feature".....just gotta factor the additional power requirements/consumption in day to day activities.

That's interesting. I'm wondering what kind of tests would require more than 1kwh of power per day. To put things into perspective, I use a very powerful workstation at work. When I crank it up at full power e.g. doing serious simulations or machine learning stuff, it's about 1000W-1200W of power (the power supply limits at 1600W). So the amount lost would be equivalent to running a high-performance workstation at full power for an hour a day, and that's with 3 Nvidia Titan GPUs (the autopilot hardware uses two less powerful ones). They better not be secretly mining bitcoins!

 

[SageBrush]

That's interesting.

My WAG is that the car uses about 400 watts in idle mode, or about 10 minutes of every hour to consume 1 kWh a day.

I sincerely hope that with better programming more of the car can deep sleep and tests will be quicker.

 

[ebmcs03]

Which is about 1 kWh per day. Even at a high electricity rate of 25 cents/kWh like you may have in California, that’s about 25 cents/day (or 10 cents/day in Texas). This is why I wonder why it bothers some people so much. The concern seems overblown.

No. It’s more like 1.5kw. 3.1 miles is1kw.

 

[TexasEV]

No. It’s more like 1.5kw. 3.1 miles is1kw.

No, that would give the Model 3 with 310 mile range a 100 kWh battery. It’s actually about 75 kWh. Therefore 3.1 miles is only about 0.75 kWh.

 

[SageBrush]

No, that would give the Model 3 with 310 mile range a 100 kWh battery. It’s actually about 75 kWh. Therefore 3.1 miles is only about 0.75 kWh.

If you want to get picky, include charging losses.
3.1 miles is ~ 1.1 * 3.1 / 4 = 0.85 kWh

 

[seattlite2004]

Maybe because it ain't in the owners manual?

On page 111.

Looks like the note for "idle and unplugged" was just recently added in the 2018-08-06 release of the manual. Below is a post on the differences and a screen cap. The manual also now gives an example of Battery discharge over a two week period.

Model 3 Owners Manual *updated Aug 1, 2018* : teslamotors

 

[ebmcs03]

Either way. 1% of 310 miles is 3.1 miles. That what I expect as loss. Not 4.5 mile loss per day.

 

[TexasEV]

Either way. 1% of 310 miles is 3.1 miles. That what I expect as loss. Not 4.5 mile loss per day.

So it’s 1.4% rather than 1%. Rounds to 1%. Chill out and try to enjoy your car.

 

[ebmcs03]

So it’s 1.4% rather than 1%. Rounds to 1%. Chill out and try to enjoy your car.

You want to pay for my wasted $0.34 a kw electricity?

 

[spongehenge]

Okay so I'm losing about 5% if not more per day, sitting in 21C (70F) environment.

Climate control is off, I don't check too regularly.

Thoughts?

 

[stebuu]

I'm also having bad vampire drain (latest test was 31 miles over 38 hours) and tesla over email/phone has been exceptionally unhelpful. Looks like I'll need to take it to the local service center.

 

[chinnam3]

For what it is worth, I am only seeing 2 Miles per day after 2018.36.2 firmware. Before it varied from 3-5 miles a day.

Also, what I observed is, the more times I ping the car using the mobile app, more drain on the battery. I checked few 24 hour discharges and few 12 hour discharges after 36.2 and I am seeing about only 2 miles per day discharge. Ofcourse weather is moderate here, and my car is parked in a garage at home and at work.

 

[Goatdan]

Is the difference in vampire drain largely dependent on v36? I just read through a whole bunch of this since my 3 is losing an average of a mile an hour. I started using Teslafi on it to track it to see if I was right, and those numbers are about right.

I just changed the Teslafi settings to try to put it to sleep more, but is the bigger thing hoping I get the update to version 36 sooner than later?

Thanks!

 

[SeanM]

I see around 1-2 miles per day vampire drain on mine. Have the Tesla techs take a look, hopefully it's not the battery issue.

 

[privater]

They better not be secretly mining bitcoins!

I was wondering where does Elon's Ethereum comes from.

 

[SageBrush]

I see around 1-2 miles per day vampire drain on mine.

I could live with that.

 

[Goatdan]

I see around 1-2 miles per day vampire drain on mine. Have the Tesla techs take a look, hopefully it's not the battery issue.

No kidding, I'm at 1 mile per hour of loss. Even more bothersome, I got the car to sleep after changing Teslafi settings, and it still drained a mile in about an hour and a half...