Phantom Drain (vampire, parasitic, maintenance) with long term parking.

[Wesley Loyd]

I have a Model Y long range on order and I have but one concern that I hope that the good people of this community may be able to help me with. My job requires me to be gone for a month at a time. While I am gone my car would be left sitting in a parking lot without charging available. I have 2 questions.

1. How much battery drain should I calculate for 30 days?
2. Does anyone know of any solar charging options that would take care of the "parked" battery drain?

Thanks

 

[3toY22]

To answer your first question - probably 1-2% per day, so maybe 50%over a 30 day period. Things you could do to minimize drain- switch off cabin overheating protection, turn off sentry mode. Do not check the app too often.

 

[Wesley Loyd]

To answer your first question - probably 1-2% per day, so maybe 50%over a 30 day period. Things you could do to minimize drain- switch off cabin overheating protection, turn off sentry mode. Do not check the app too often.

In that case I would have to show up to work with as much charge as possible. And may have to reconsider my order... thanks for the info.

 

[MDElectric]

Not sure if previous post was a typo, but 1-2 % per week is my experience. 6 days at airport in Apr with everything off and I returned to +1 miles (likely due to difference in temp).

 

[Wesley Loyd]

Not sure if previous post was a typo, but 1-2 % per week is my experience. 6 days at airport in Apr with everything off and I returned to +1 miles (likely due to difference in temp).

That sounds a lot better... i work 28 days on and 28 days off... i would hate to get back to my car and not be able to make it back to a super charger... thanks for the input.

 

[Johnny Vector]

That sounds a lot better... i work 28 days on and 28 days off... i would hate to get back to my car and not be able to make it back to a super charger... thanks for the input.

Yeah, that's my experience too. If the car stays off, vampire drain is minimal. Maybe a percent per week. Be sure to set the so it stays "off":

• Turn off sentry mode (most important)
• Turn off cabin overheat protection
• Don't open the app on your phone to check on it often (once a week is fine, but not several times a day)

 

[ATPMSD]

There is a lot of variation from model to model, my MS loses 500 watts / day which would be about 15 kWh over 30-days, while other models lose 1 kWh / week, which would be about 4 kWh. Your best bet is to run a test. Do it over a 3-day weekend, longer if you can. And be sure to follow @johnny Vector’s advice.

 

[dannycamps]

Had my first experience with leaving my car unplugged for a few days and it was not a great one with regards to vampire drain. Took my car to a hotel for 5 days with no way to plug it in. Arrived with 75% SoC (~255 miles) and parked the car (topped off at somewhat nearby supercharger prior to arrival). Turned off sentry mode knowing that it a big battery draw.

Returned to my car 5 days later (today) and it was showing 170 miles remaining. So in 5 days, I lost 85 miles of range which seems somewhat excessive. I am going to attribute it to Cabin Overheat Protection being enabled but to be honest, while the car was parked out in the sun the whole time, the outside temp rarely got above 88 F. I don't use anything like TeslaFi or any other "API"-type services that would prevent the car from going to sleep.

I am much less confident now about leaving my car for long stretches unplugged.

 

[ATPMSD]

Some things to consider: If Smart Summons it set to standby mode the car will not go to sleep and will drain the battery as fast as leaving sentry on.

Cabin Overheat Protection being enabled but to be honest, while the car was parked out in the sun the whole time, the outside temp rarely got above 88

Outside air temperature is not as significant as is the Sun. The car could easily top 100, or more.

 

[Bruce2020]

Some things to consider: If Smart Summons it set to standby mode the car will not go to sleep and will drain the battery as fast as leaving sentry on.



Outside air temperature is not as significant as is the Sun. The car could easily top 100, or more.

Venting windows will help alot. Also, roof sunshade is a must for sun. Doing both will save battery meaningful in my experience.

 

[Bruce2020]

Venting windows will help alot. Also, roof sunshade is a must for sun. Doing both will save battery meaningful in my experience.

It goes without saying.. windshield shade is required to cut down sun heat.

 

[TrojanHorse]

Cabin overheat protection only functions for the first 12 hours after you leave the car anyway.

 

[ElectricAnt54]

I have a Model Y long range on order and I have but one concern that I hope that the good people of this community may be able to help me with. My job requires me to be gone for a month at a time. While I am gone my car would be left sitting in a parking lot without charging available. I have 2 questions.

1. How much battery drain should I calculate for 30 days?
2. Does anyone know of any solar charging options that would take care of the "parked" battery drain?

Thanks

I have a Model Y long range on order and I have but one concern that I hope that the good people of this community may be able to help me with. My job requires me to be gone for a month at a time. While I am gone my car would be left sitting in a parking lot without charging available. I have 2 questions.

1. How much battery drain should I calculate for 30 days?
2. Does anyone know of any solar charging options that would take care of the "parked" battery drain?

Thanks

Enjoy your tesla.
15% drain for 32 days and the person had cabin overheat active.

Here’s how much battery is drained if a Tesla is left unplugged for 32 days - Tesla Oracle

Let's find out how much battery of a Tesla vehicle is drained when it is left parked in the open for 32 days straight without any charging (video).

www.teslaoracle.com

 

[bluetrep1]

at least 3% per day. Good luck with your long term parking

 

[SpeedyGonzales]

at least 3% per day. Good luck with your long term parking

This is exactly what I’m seeing , it’s pretty excessive IMHO. Is this still the case for you too? Thanks !

 

[jjrandorin]

This is exactly what I’m seeing , it’s pretty excessive IMHO. Is this still the case for you too? Thanks !

As long as you are NOT using cabin overheat protection, and NOT using sentry mode, drain is Much less than 3% a day.

battery drain airport parking

it would be good to have a tutorial about all the ways to prevent battery drain while being parked. Case in point parking at airport parking in the summer. Had to drive my gasoline car 140 miles roundtrip in Houston traffic (ba Humbug) because I could not trust Tes sitting for two weeks in...

teslamotorsclub.com

MY AIRPORT PARKING DRAIN EXPERIENCE

Hi Everybody - I wanted to share some experience from parking my MY for multiple weeks in the winter at JFK airport. My concern was that I'd lose a few % every day but with Sentry + Wifi Off and 'DEEP SLEEP ASSIST' activated through Tezlab, I did not lose any significant power. Funny enough...

teslamotorsclub.com

Parked Idle for 5 months. Unplugged

Model Y 60kw RWD Parked for 5 months and a week unplugged in 25c - 35c temperature. Started at 97% battery balance was 57% at then end. 12v battery no issues

teslamotorsclub.com

 

[LostVector]

As long as you are NOT using cabin overheat protection, and NOT using sentry mode, drain is Much less than 3% a day.

battery drain airport parking

it would be good to have a tutorial about all the ways to prevent battery drain while being parked. Case in point parking at airport parking in the summer. Had to drive my gasoline car 140 miles roundtrip in Houston traffic (ba Humbug) because I could not trust Tes sitting for two weeks in...

teslamotorsclub.com

MY AIRPORT PARKING DRAIN EXPERIENCE

Hi Everybody - I wanted to share some experience from parking my MY for multiple weeks in the winter at JFK airport. My concern was that I'd lose a few % every day but with Sentry + Wifi Off and 'DEEP SLEEP ASSIST' activated through Tezlab, I did not lose any significant power. Funny enough...

teslamotorsclub.com

Parked Idle for 5 months. Unplugged

Model Y 60kw RWD Parked for 5 months and a week unplugged in 25c - 35c temperature. Started at 97% battery balance was 57% at then end. 12v battery no issues

teslamotorsclub.com

Correct ... I went on a trip for a week. Went from 40% to 39%. Just make sure you aren't obsessively pinging the car or running features that keep the car awake and you'll be fine.