Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.
Register

New Vampire Drain

HyperionMark

Member
Aug 28, 2017
526
242
Brookings, SD
Getting vampire drain in the realm of like 7-8% per day. I'm on 2020.48.37.1 on MCU1 with FSD computer March 2017 build of the vehicle. This is in my garage at 30-35 degrees F. Have it set to all of the lowest power options and try to never wake it up via the app. Sentry mode is definitely off. Any ideas, or is this sadly normal? My Model 3 is nowhere close to this. More like 1-2% per day.
 

FatherTo1

Member
Mar 7, 2019
885
876
California
If you have FSD, is Summon Standby enabled? That is a power hog. Our S loses 1% per day, but your garage temperature hovers around freezing so that could reduce available capacity. Do you see the percentage increase back when the garage is warmer? This all could just be correlated to your garage temps and be normal. Is your Mode 3 also in the same garage?
 

Bigriver

Member
Mar 2, 2018
498
441
Pittsburgh, PA
I went through periods of high losses with my MCU1 model X. Some of the episodes lasted for weeks and I never really found why, but they did all eventually self resolve. A few times (after service appointments) I found they had checked the Always Connected button, and that was the problem.

No problems since upgrading to MCU2. Never any similar problems with model 3.
 

HostileHarry

Member
Sep 4, 2018
279
205
Chicago
I'm in the same boat loosing 5% per day (MCU 1 / FSD). I disabled Teslafi for a month and same thing, the X doesn't seem to ever sleep and I've made sure to make sure all the common settings are off. What I've noticed from watching TeslaFi (and changing the settings many different times) is that the car is not attempting to sleep.

My Model 3 has never had a problem
 

HyperionMark

Member
Aug 28, 2017
526
242
Brookings, SD
I'm in the same boat loosing 5% per day (MCU 1 / FSD). I disabled Teslafi for a month and same thing, the X doesn't seem to ever sleep and I've made sure to make sure all the common settings are off. What I've noticed from watching TeslaFi (and changing the settings many different times) is that the car is not attempting to sleep.

My Model 3 has never had a problem
Good to hear I'm not the only one. Hoping it will get fixed when I get MCU2 in less than a week.
 

JoeS

Member
Jan 28, 2016
36
24
Hills Above Silicon Valley
2020.48.37.1 early VIN Model S85, upgraded MCU1, in garage 50°F, float charger attached to 12v battery (been doing that for years and 12v is still great), display Energy Saver ON and Always Connected OFF. Car had been quietly asleep for months with zero power draw, but after a couple of drives is now inexplicably losing up to 5%/day! Now making random whirring and clicking noises and occasionally raising/lowering suspension. Any other settings I need to change?
 

jboy210

Supporting Member
Supporting Member
Dec 2, 2016
5,381
3,332
Northern California
Is either of the keys anywhere near your car? Even being in the bedroom above the garage caused my car to drain. I now keep it in a drawer 30 feet and 3 walls away. This is on a 2018 X with MCU2.
 

Les236

Member
Jan 20, 2018
244
119
Kissimmee, FL, Boston, MA
I am surprised you are still on a 2020 firmware. I am on 2021.4.12 and have been experiencing some vampire drain and hear fan noises, etc. Haven't had the 0-1% drain in a long time. I have all the same settings as you. Yes, do what jboy210 suggests, and maybe give it a reboot.
 

JoeS

Member
Jan 28, 2016
36
24
Hills Above Silicon Valley
Is either of the keys anywhere near your car? Even being in the bedroom above the garage caused my car to drain. I now keep it in a drawer 30 feet and 3 walls away. This is on a 2018 X with MCU2.
Thank you for this reminder. Normally the key is indeed stored far from the car, but I had forgotten to take it out of my cargo pants and had been doing a lot of work in the garage. I'll take the cover off the car, reboot it, ensure everything is off, and stow the key. Thanks.
 

Camelroel

Member
Oct 21, 2018
772
379
Lelystad
I am also on 37.1. Normally it looses less then 1% a day. However yesterday it suddenly lost more and I noticed this morning that the small screen behind the steering wheel was on. I didn't use the X for a few days. I did a reboot and now everything looks right again.
Why that screen went on I don't know. Unlocking and locking didn't make a difference.
 

jboy210

Supporting Member
Supporting Member
Dec 2, 2016
5,381
3,332
Northern California
I am also on 37.1. Normally it looses less then 1% a day. However yesterday it suddenly lost more and I noticed this morning that the small screen behind the steering wheel was on. I didn't use the X for a few days. I did a reboot and now everything looks right again.
Why that screen went on I don't know. Unlocking and locking didn't make a difference.
Did you check your car (ex. look at charge state, interior temp, etc.) with the phone app. That seems to start up systems and is one reason you don't want to check very often.
 

Camelroel

Member
Oct 21, 2018
772
379
Lelystad
No the small screen was on for no reason. I checked if I checked the status with the phone later the screen does not go on.
So probably just one off these things. :D
 

Products we're discussing on TMC...

About Us

Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.

Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


SUPPORT TMC
Top