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10% battery drain overnight?

Dionysius

Member
Oct 18, 2019
42
41
Chandler, AZ
Hey all,

new model 3 owner here. I wanted to post about this for advice because I’m really scratching my head right now. Every morning I’ve been waking up with about 10% battery drain on my LR AWD overnight. I know this isn’t normal, so I’m trying to figure out what could be causing it. I’m in Southern California so temp shouldn’t be a factor.


Any ideas?
 

Runt8

Active Member
May 19, 2017
1,986
2,371
Colorado
Sentry mode, summon keep awake (forget the actual name for this setting), third party apps...

There are a lot of things that can cause the car to stay awake, which then causes so called phantom drain.
 

BZM3

Member
Aug 15, 2019
281
124
Somewhere
Hey all,

new model 3 owner here. I wanted to post about this for advice because I’m really scratching my head right now. Every morning I’ve been waking up with about 10% battery drain on my LR AWD overnight. I know this isn’t normal, so I’m trying to figure out what could be causing it. I’m in Southern California so temp shouldn’t be a factor.


Any ideas?
only real way to know is to purchase one of the third party apps to identify exactly where the loss is coming from.
 

ilyak

Member
Mar 16, 2019
603
712
Walpole, NH
Sentry mode is disabled overnight
Summon standby mode will also prevent the car from sleeping. To turn off, go to settings -> Autopilot -> Standby Mode (under Summon) and either turn it off or set 'Exclude Home'. Keep in mind that, as it gets colder, the car will use some energy to maintain minimum battery temperature, so it's always best to plug in when you can.
 
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SSonnentag

Rocket Scientist
Apr 11, 2017
1,711
2,166
Arizona
Hey all,

new model 3 owner here. I wanted to post about this for advice because I’m really scratching my head right now. Every morning I’ve been waking up with about 10% battery drain on my LR AWD overnight. I know this isn’t normal, so I’m trying to figure out what could be causing it. I’m in Southern California so temp shouldn’t be a factor.


Any ideas?

In my S I have noticed that if I make a long drive so that the battery gets all toasty warm, and then park the car overnight, the drop in battery temperature from 100F (???) to 50-60F will make the car show a significant drop in percentage. The worst I've seen is an 8% drop in an hour while shopping for groceries. That was after a 3-hr drive and then parking at the store with roughly 30F temps.
 

azred

Active Member
Apr 12, 2016
1,872
2,165
Chandler, AZ
Summon standby mode will also prevent the car from sleeping. To turn off, go to settings -> Autopilot -> Standby Mode (under Summon) and either turn it off or set 'Exclude Home'. Keep in mind that, as it gets colder, the car will use some energy to maintain minimum battery temperature, so it's always best to plug in when you can.
Yep, I was losing a ton of range overnight while on a week long trip. Shut off sentry and summon standby. All is well again.
 

Dionysius

Member
Oct 18, 2019
42
41
Chandler, AZ
No third party apps! But we’ve been on a long road trip (1200 miles) and will be getting home to Phoenix tomorrow. So perhaps it’s just better temperature related
 

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