What's YOUR vampire drain?

[Wol747]

My S is losing just over 22Km per 24Hrs parked at home, Sentry mode off and no accessing it between readings.
Seems a bit high to me to lose 220Km plus in ten days - normal?

 

[Onshore]

That seems very high. Does it keep dropping like that or level off?

What was the initial SOC in this instance?

I wonder if it might be a sign that the 12v battery is dying, and therefore more frequently topping up from the drive battery.

 

[paulp]

My S is losing just over 22Km per 24Hrs parked at home, Sentry mode off and no accessing it between readings.
Seems a bit high to me to lose 220Km plus in ten days - normal?

My S has lost 7km in the past 24 hours. I completed a charge this time yesterday and havnt driven it yet.
What percentage level are you charging at?
Are you constantly waking the car?

 

[Wol747]

The car's only 7 months old. I keep the battery at 80% normally and have just left it without being plugged in to check the vampire drain. I deliberately haven't woken it during the check (I don't anyway, actually - what's the point?).

 

[paulp]

The car's only 7 months old. I keep the battery at 80% normally and have just left it without being plugged in to check the vampire drain. I deliberately haven't woken it during the check (I don't anyway, actually - what's the point?).

Mine is almost 2 years although low km. I charged the other same age model s yesterday as well and it lost 6km. You probably should book a service appointment.

 

[jmaddr]

That's too high. I'll be it's not sleeping. You have already confirmed that Sentry is disabled. Perhaps do you have FSD or EAP and have advanced summon enabled?

 

[Vostok]

I don't have Model S, but if I leave my 3 unplugged in the garage (which I do sometimes when I know I have a bunch of cloudy days coming up and I don't want it to charge off the limited solar) it loses about 1 km per day.

 

[Ecoli]

If the car is sleeping you should hear the HV contractors closing when the car wakes
Thunk sound when the HV contractors come on
Is smart summon standby enabled, that also drains the battery

 

[pts260]

Also services such as Teslafi can keep the car awake is not configured for this. I lose about 1 - 2% over 24 hours. Teslafi also measures vampire drain. Well worth it for quantifying any issues.

 

[paulp]

If the car is sleeping you should hear the HV contractors closing when the car wakes
Thunk sound when the HV contractors come on
Is smart summon standby enabled, that also drains the battery

I have smart summon active on one model s and not the other. Both identical in all respects other than distance travelled. The drain is no different.

 

[Wol747]

Update 10 November!

Second day's test: 25.2 Km vampire drain in 24 Hrs. I checked summon is not enabled, no charging plugged in and car locked.
The only thing is I've just seen an app called TesLab on my tablet, so I have disabled that and will await developments tomorrow!

 

[Candleflame]

initially 1 battery recharge every 2nd day (2km or so) but this seems to slow down further after to maybe 1 recharge every 3rd day for 2km.
So around 1km/day maybe. On a Model 3 that is.

22km/day on the S means that the car likely doesnt sleep.

 

[Wol747]

It may well be that app, which I tried a month or so ago and never use - I will see tomorrow if getting rid of it changes things.

 

[rowdy]

Is Cabin Overheat Protection on? That can drain a fair bit of energy depending on climate and where the car is parked.

 

[Wol747]

Solved!
It is the TezLab app soaking up Km: I uninstalled it yesterday and the drain is only 2Km in 24 hrs now. Thanks!
Re. cabin O/H protection - yes, I find it IS on but it hasn't been working during these tests. I've now switched it off anyway - thanks - as I can always bring the temp down in a hurry manually if required.

 

[cafz]

My understanding is that the cabin overheat protection isn't for comfort so much as the longevity of the car interior. Seems like a good idea to leave it on to me, it doesn't have to work that hard because it only tries to keep it under 40C

 

[Wol747]

My understanding is that the cabin overheat protection isn't for comfort so much as the longevity of the car interior. Seems like a good idea to leave it on to me, it doesn't have to work that hard because it only tries to keep it under 40C

I think you're right but I've put it off anyway, trying to confirm that the TezLab app is draining the car.

 

[pts260]

Yeah, I found that with teslafi, the constant polling of the car kept it awake and using energy. now I have it set to sleep / deep sleep and it doesn't poll the car during the set sleep time. I'm not sure if tezlab does this, but I tried it, didn't find much use, I think they've tried to gamify the app. Teslafi is a no nonsense website with heaps of ways to look at your info. Glad you found the vampire and slayed it.

 

[Wol747]

>>Glad you found the vampire and slayed it.<<
Yes, I couldn't remember if I needed a wooden or silver stake ....