Phantom Drain | Tesla Model 3 | Cost, Wastage & EVs compared

Seeing how much energy I waste and how much it costs me to leave my Model 3 unattended for 8 days in my garage. Are there hidden costs to EV ownership we need to be aware of and where is this energy going? Especially at it appears a unique problem to Tesla!

This test was conducted in October 2021, with the latest software release at the time.
(I've just not had time to get the video out since I did the experiment)

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[gadgetlewis]

As usual, very well researched, thorough and informative! Thank you for your enthusiastic efforts!

[richardturner]

Parked my 2021 M3 SR+ at home for 3 weeks whilst on holiday. Turned Sentry Mode and Climate Protection off and didn’t wake up the car by opening the app. Drained from 99% to 89%, so a lot better than Tesla suggested

[molepatrol]

This was timely as I was thinking about loss if parked at an airport for a week in the winter. I was going on the 1% / day so it’s good to hear it’s way below that.

[MickBeard]

We went to the States just before Christmas. Topped up to 90% at the SC's at Gatwick before we flew out. We got back 10 days later and had only lost about 8 miles of range. Didn't have sentry mode on and only checked the car once via the app while we were away. i was very impressed.

[jamesward]

Love it - such watchable videos and super interesting.

[danbron]

You woke the car up in between the period, which will probably add more drain to the mix. Over around a couple of weeks in lockdown mine only lost a few percent. The initial drain is normally seen when the battery cools after a drive and people see to attribute that to phantom drain. Obviously waking it up and using third party apps don’t help either

[--Nath--]

Try running sentry mode all the time. It is a major power suck. Need something better efficiency wise for those of us parking in the street..

[ExplodingPiggy]

3:42 I think that actually answers your question

[Raedodd]

Parked up at home for 15 days and lost only 3% when I returned. M3 sr+, lfp, mic.

[jsva]

I left my nov 21 M3LR parked at Heathrow for 2 weeks over xmas/new year, lost 2%.
I did not had sentry active, and the car was mostly at sleep. Car woke up by itself once a day and sent status to mothership. didn't opened the app during that time, but the iOS widget used to update as and wen the car woke up and sent status to mothership.

Didn't bothered to turn anything on the car apart sentry and cabin overheat protection.

[motofunk]

I wonder if Tesla's Robotaxi goals have had an impact on this? Their goal is that a Robotaxi will never sit idle unless being charged.

[UntrainingUltrarunner]

Great video. What’s the gadget you are using to read the battery status etc? Some obd thing?

[SandraWantsCoke]

my eGolf has no phantom drain. You come 1 week later and it's still the same range shown.
And in cold climate people write losing over 20 miles per day... that's way more than I drive. Why would anyone buy such a polluting piece of junk is beyond me. I would literally have to pay for 20 miles per day in winter. That's the electricity that had to be produced. Don't buy American cars, folks.

[sojournern]

So you burn about the equivalent of a quart or a liter of gas a year through phantom drain? That's less than the gas you burn waiting for the red lights to change in a few months.

[davidsworld]

if you have omicron you only need 5 days then take 2 day clear test,
there is no thing as phantom drain. your car uses power when not being used the 12v will drop to a dead level so the big battery charges it
the more your car uses with alarms, opening and closing door or checking if you are near the car with key fob.
all cars have battery drain but have larger battery (amp's) the battery will not drain to dead fast.
the simple thing is an ev never turns off completely. but neither does petrol or diesel car do too. but for just alarm systems.
my stupid small battery in my ioniq requires the big battery to charge the 12 v every day if not used.
BUT I have just had recall to get a part replaced that may be linked to this drain