Losing 10% charge a day (Sentry Mode on)

[Flaunt]

I want to compare. I am losing 10% charge in a day. It was charged to 100% at midnight. It’s 5:51 pm and it’s down to 90%. Is this normal?

This is pretty normal, especially if there is a lot of sentry activity. Have you checked the energy loss during park since last charge on your cybertruck? It will tell you what is using the power

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[GnarlyDudeLive]

Sentry is a massive power hog currently. 10kwh in a day is an absolute ton of power draw. I have a home camera system (Blue Iris) that records all 6 HD cameras to disk 24x7 through a PC with 5tb of storage with 4 of those streams additionally being recorded on motion sense. 10khw per day (sentry mode) at $0.12 per would be roughly $32 worth of electric per month. I know for a fact my home system does not draw close to that. Last I checked my PC + the POE switch combined was drawing under 60w total under full load using my Killawatt meter to read it. IMO, Tesla has some huge potential in reducing power draw with some effort on their part.

 

[kpg81]

I tried sentry mode overnight just last night and it ate up 6% battery and had 0 sentry events. I have no idea how such a feature is such a battery hog.

Tesla cannot seem to figure out how to make basic auto wipers work and how to optimize the power draw from sentry mode, these two things seem so simple yet they cannot get it right. I'm going to just keep it disabled when at my house from now on.

 

[JackCypher]

I want to compare. I am losing 10% charge in a day. It was charged to 100% at midnight. It’s 5:51 pm and it’s down to 90%. Is this normal?

I too am concerned with the 'vampire' loss, 3% or 5% is a LOT when you consider how massive the CT battery is....so no...it is not trival or expected.

IMO: connecting the app should not drain the battery....this is nonsense as an excuse.

Sentry Mode : I've got Ring cameras that run on a 9volt battery for 2 years WITH BLE wireless...this is also nonsense as a drain excuse. Sentry are just 5 cameras.

If I recall correctly the CT battery is 120k...so 1% is 1,200 killawatts!...guys that will run a hair dryer!

Loss over idle parking time: 3-5 days is NOT long term. That's a drive to an airport and a 4 business trip...I'd not expect to lose 20% of battery sitting.

SuperCharging: most of the Super Charger stations I access take 1hr + to charge the CT from 15% to 80/100....so I get looks when I leave for a walk or errand.

This is compounded with the app 'recommending' 80% charge for daily driving..then you get a warning to not run the battery to less than 15%.

I have seen some improvements with updates.

For me getting to know when and plan around charging is the answer.

It is odd how there are not chargers at locations convenient like shopping malls etc. Non- tesla charger speeds are very slow.

Jack

 

[jimnycricket65]

I turned off the sentry mode and I lost 2% only. I can live with this “pace” of loss when not driven.

 

[jimnycricket65]

I too am concerned with the 'vampire' loss, 3% or 5% is a LOT when you consider how massive the CT battery is....so no...it is not trival or expected.

IMO: connecting the app should not drain the battery....this is nonsense as an excuse.

Sentry Mode : I've got Ring cameras that run on a 9volt battery for 2 years WITH BLE wireless...this is also nonsense as a drain excuse. Sentry are just 5 cameras.

If I recall correctly the CT battery is 120k...so 1% is 1,200 killawatts!...guys that will run a hair dryer!

Loss over idle parking time: 3-5 days is NOT long term. That's a drive to an airport and a 4 business trip...I'd not expect to lose 20% of battery sitting.

SuperCharging: most of the Super Charger stations I access take 1hr + to charge the CT from 15% to 80/100....so I get looks when I leave for a walk or errand.

This is compounded with the app 'recommending' 80% charge for daily driving..then you get a warning to not run the battery to less than 15%.

I have seen some improvements with updates.

For me getting to know when and plan around charging is the answer.

It is odd how there are not chargers at locations convenient like shopping malls etc. Non- tesla charger speeds are very slow.

Jack

Very comprehensive and informative.

 

[CyberJay]

This seems like a LOT - but not doubting your assessment.

Possible causes:
- Obviously sentry mode
- Cabin Overheat
- Check seat fan / heater -- for some reason my seat cooler fan keeps running sometimes - could be a potential minor cause of drain

Finally ---
- ** if your phone is close (even behind a garage wall) to the truck, then the car may constantly be "waking up" to prepare to go for you - I noticed this in my home where if I'm far away from the garage, it "goes to sleep" but theres one room in my home where i sit sometimes, and the truck "wakes up" to greet me... You will notice when you go to your app the truck will tell you "asleep for X minutes" -- if that time is never high (several hours) then its constantly waking to "receive you"... something to look into.

Either way - sentry mode taking 10% every day is a LOT and Tesla really really needs to find a solution for this.

In Tesla's defense, they're constantly improving and I've had my truck for almost 3 months now and I cannot begin to say how much I love this truck.

 

[jimnycricket65]

Good tips and thanks for the response

 

[steven347]

I want to compare. I am losing 10% charge in a day. It was charged to 100% at midnight. It’s 5:51 pm and it’s down to 90%. Is this normal?

I would lose about 12 miles overnight with sentry mode on at home.
I selected it of for home and lost zero miles overnight.

 

[jimnycricket65]

lol. I was told to talk in percentages since that’s the accurate way. I don’t care whether it’s in miles or percentage.
I am interested in knowing how you are not losing any miles overnight. Is there a setting that you use that delivers this results?

 

[CyberGus]

IMO: connecting the app should not drain the battery....this is nonsense as an excuse

Connecting remotely wakes the truck, it should return to the low-power sleep mode in 30 minutes (I think). Constantly checking with the app keeps it from sleeping. I suppose there's little harm if it's already awake (like when Sentry is active). Your laptop doesn't use much battery when nothing is running, but it's much less drain when asleep.

Sentry Mode : I've got Ring cameras that run on a 9volt battery for 2 years WITH BLE wireless...this is also nonsense as a drain excuse. Sentry are just 5 cameras.

Sentry takes 300 to 500 watts, which I agree is nonsense, BUT this was added as an afterthought to Teslacam functionality. It's running the FSD computer to detect events, which is resource-intensive. Tesla has promised to improve this.

...so 1% is 1,200 killawatts!...guys that will run a hair dryer!

1,210 kW will run a flux capacitor

...so I get looks when I leave for a walk or errand.

They're looking at the Cybertruck, not you. It's common to leave your vehicle at a Supercharger. No one is judging you for leaving the stall occupied for long periods, the idle fees take care of that.

...then you get a warning to not run the battery to less than 15%.

That's really the "E" light blinking to keep you from getting stranded. There's no harm to the pack at low SoC, but you risk having to walk home.

 

[nubbin77]

Sentry is a massive power hog currently. 10kwh in a day is an absolute ton of power draw. I have a home camera system (Blue Iris) that records all 6 HD cameras to disk 24x7 through a PC with 5tb of storage with 4 of those streams additionally being recorded on motion sense. 10khw per day (sentry mode) at $0.12 per would be roughly $32 worth of electric per month. I know for a fact my home system does not draw close to that. Last I checked my PC + the POE switch combined was drawing under 60w total under full load using my Killawatt meter to read it. IMO, Tesla has some huge potential in reducing power draw with some effort on their part.

Same thoughts. I also have calculated approximately 1% loss every 2.5 hours (roughly 10% / day). which is 12KWH a day. Even an extremely high end PC running full tilt uses less than 750W per hour (with a dozen fans, CPU's GPU's, and dozens of peripherals attached). A high power laptop uses less than 200W / H (most less than 100). So I agree this cybertruck computer is running really inefficiently, even considering connectivity (bluetooth, wi-fi, cellular) and all the cameras.

 

[Darth abbott]

Was this happening on version 2024.26.3.1 or 2024.20.7? I haven't experienced -10% overnight with sentry on, that seems excessive. Are you have a ton of sentry events? I'm not sure if that even effects it or not, but just curious.

10% of 24 hours is different than 10% overnight. The original post was 10% in 24 hours. I replied I also lose 10% in 24 hours or close to that a little less than 10 probably

 

[tmeyer3]

10% of 24 hours is different than 10% overnight. The original post was 10% in 24 hours. I replied I also lose 10% in 24 hours or close to that a little less than 10 probably

sure enough, misread that. any change with update to 2024.26.3.1? I'm seeing about 1% drop in 24 hours without sentry myself, so as other have said it's probably a sentry thing. I haven't tried a full day with it on yet. Just use it while parked at stores and such, haven't yet had a reason to publicly park it for 24 hours yet.

 

[Darth abbott]

sure enough, misread that. any change with update to 2024.26.3.1? I'm seeing about 1% drop in 24 hours without sentry myself, so as other have said it's probably a sentry thing. I haven't tried a full day with it on yet. Just use it while parked at stores and such, haven't yet had a reason to publicly park it for 24 hours yet.

Yeah I lose 1% or less than 24 hours. I was parked at the airport for 3 days and was losing about 10% a day with sentry on. I fully expected that much drop as that has always been the case on other teslas as well.

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