Any tests done on Vampire battery drain?

[Jtg11]

I was in Europe for 15 days and parked in semi-climate controlled (insulated and attached garage) in Dayton area. left on 9/2/2022 and returned 9/17/2022:

Weather - 50's - 80's
Gear Guard Off
Everything else as I would normally leave it
9/2 = 70% SoC
9/17 = 44% SoC
Lost ~1.7% SoC per day.
Note that my car updated to 2022.31.5 while i was gone about 9/3 or 9/4, so most of this with the latest update.

Still way too much for my liking, but getting better than my original test in April with original software of about 3% loss per day.

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[yizzung]

Do other EVs have “airport garage mode”? Seems like the most obvious use case. Tesla probably calls is Garlic Mode (aka anti vampire mode) since they routinely act like 14 year old boys… In San Francisco where electricity is over $0.30 kWh I’m increasingly conscious of the drain.

 

[zefram47]

Do other EVs have “airport garage mode”? Seems like the most obvious use case. Tesla probably calls is Garlic Mode (aka anti vampire mode) since they routinely act like 14 year old boys… In San Francisco where electricity is over $0.30 kWh I’m increasingly conscious of the drain.

Other EVs don't need it. That's the whole point of the thread and why many of us are irritated by the irrational vampire/parasitic draw of the R1 platform. Literally the only two EVs I know of with this issue are Teslas and Rivians, and I suspect Rivian has it because so many of their engineers came from Tesla. All the legacy manufacturers that now have EVs already knew how to properly build a 12V system complete with telamatics that wouldn't require huge amounts of power. Now the new EV-only companies will need to learn that they can't constantly leverage the HV pack and constantly burn power because they think it's available.

 

[HyperionMark]

Other EVs don't need it. That's the whole point of the thread and why many of us are irritated by the irrational vampire/parasitic draw of the R1 platform. Literally the only two EVs I know of with this issue are Teslas and Rivians, and I suspect Rivian has it because so many of their engineers came from Tesla. All the legacy manufacturers that now have EVs already knew how to properly build a 12V system complete with telamatics that wouldn't require huge amounts of power. Now the new EV-only companies will need to learn that they can't constantly leverage the HV pack and constantly burn power because they think it's available.

Tesla's do not have vampire issues with any of their new vehicles.

 

[CommodoreAmiga]

Tesla's do not have vampire issues with any of their new vehicles.

That's sarcasm, right?

 

[HyperionMark]

That's sarcasm, right?

You can take it however you want but our new Tesla is stellar regarding vampire. Same with lots of others that I know purchased in the last year+

 

[CommodoreAmiga]

You can take it however you want but our new Tesla is stellar regarding vampire. Same with lots of others that I know purchased in the last year+

Happy for you. I have no doubt it's better than Rivian vampire drain, right now... But I know too many people who admit that Tesla still suffers from noticeable drain -- much more than the legacy manufacturers. I'm sure this is mainly due to a difference in philosophy -- tech company vs auto manufacturer... But it's real, and to say Tesla doesn't suffer from vampire drain is, well, flippant.

 

[Dirty_B]

I was in Europe for 15 days and parked in semi-climate controlled (insulated and attached garage) in Dayton area. left on 9/2/2022 and returned 9/17/2022:

Weather - 50's - 80's
Gear Guard Off
Everything else as I would normally leave it
9/2 = 70% SoC
9/17 = 44% SoC
Lost ~1.7% SoC per day.
Note that my car updated to 2022.31.5 while i was gone about 9/3 or 9/4, so most of this with the latest update.

Still way too much for my liking, but getting better than my original test in April with original software of about 3% loss per day.

Put another way, like I look at things in range:
Parked car, in driveway outside (temps varied 65@night, 85@day) due to lack of registration. Parked at 85% charge with a range of 254. By 24hr period I lost due to vampire drain:
1st 24 hrs: 7mi lost
2nd 24 hrs: 5 mi lost
3rd: 5 mi lost
4th: 6 mi lost
5th: 5 mi lost
6th: 5mi lost

So I'm guessing at this, but if I use this data to figure out how much I've lost to vampire since I've owned the vehicle at 5mi/day (that's 2 kWh if I get 2.5mi/kWh), and I've owned it for 102 days as of today. It comes out to 204 kWh lost to vampire. Annualized I'm losing about 730kWh at this rate. Btw according to the US Energy Information Administration the average US home uses 893 kWh per month. So my Rivian, over a year, loses almost the equivalent energy that a home uses...so how many have been sold/will be sold in a year....that should scare RJ as to the waste his company is causing.

I know it can be fixed (our model S loses about 1mi/day or less) and they'll try to fix it...it has to be fixed or they're going contrary to their stated "Forever" ethos.

 

[Dirty_B]

Happy for you. I have no doubt it's better than Rivian vampire drain, right now... But I know too many people who admit that Tesla still suffers from noticeable drain -- much more than the legacy manufacturers. I'm sure this is mainly due to a difference in philosophy -- tech company vs auto manufacturer... But it's real, and to say Tesla doesn't suffer from vampire drain is, well, flippant.

You could go further and call it "uninformed".

Well documented that they do indeed have Vampire drain across "Tesla". It's just some more than others and others have minimal to barely any **"right now".

Our S during warm months exhibits almost none, but when winter hits - yes we have Vampire drain overnight that rivals what our Rivian is seeing right now in the warm months. (I fear what is going to happen to my R1T's vampire drain come Dec - Mar and for what those in Northern Latitudes see as their Rivian vampire drain during winter.)

I caveated it with "right now" because with an OTA, that could change for the negative very easily.

 

[Oldsmobile_Mike]

Happy for you. I have no doubt it's better than Rivian vampire drain, right now... But I know too many people who admit that Tesla still suffers from noticeable drain -- much more than the legacy manufacturers. I'm sure this is mainly due to a difference in philosophy -- tech company vs auto manufacturer... But it's real, and to say Tesla doesn't suffer from vampire drain is, well, flippant.

I don't know either of you guys, and this is totally OT. But as a long-time Amiga user (going back to late 1980s) the amusement of someone with the Amiga name arguing with someone with the Hyperion name... is somewhat fitting. ?

Carry on, gentleman. Hopefully this vampire drain issue gets worked out with some kind of OTA update. Really discouraging to hear some of the amounts of power people are losing. ?

 

[Prime]

Tesla's do not have vampire issues with any of their new vehicles.

Same. My MY 2021 will lose maybe 1% every 5 days if left in a garage. Now with Sentry Mode on, it takes 5%+ off a day depending on how many times its activated.

 

[JoelD]

There are some options. Put it in Camp Mode, and turn off climate control. I did this on a recent camping weekend, and loss was negligible…

 

[HyperionMark]

Happy for you. I have no doubt it's better than Rivian vampire drain, right now... But I know too many people who admit that Tesla still suffers from noticeable drain -- much more than the legacy manufacturers. I'm sure this is mainly due to a difference in philosophy -- tech company vs auto manufacturer... But it's real, and to say Tesla doesn't suffer from vampire drain is, well, flippant.

Obviously depends on what your definition is. If you are looking for truly zero or near zero loss everyday, then yes, you will need to go with a legacy company that has less tech. I think most people would consider only a mile, maybe even two, of loss everyday to be acceptable. Again, all depends what you define as vampire loss. If "noticable

You could go further and call it "uninformed".

Well documented that they do indeed have Vampire drain across "Tesla". It's just some more than others and others have minimal to barely any **"right now".

Our S during warm months exhibits almost none, but when winter hits - yes we have Vampire drain overnight that rivals what our Rivian is seeing right now in the warm months. (I fear what is going to happen to my R1T's vampire drain come Dec - Mar and for what those in Northern Latitudes see as their Rivian vampire drain during winter.)

I caveated it with "right now" because with an OTA, that could change for the negative very easily.

What year is your S? Also what kind of temps does your vehicle see overnight during the winter?

 

[Dirty_B]

Same. My MY 2021 will lose maybe 1% every 5 days if left in a garage. Now with Sentry Mode on, it takes 5%+ off a day depending on how many times its activated.

You hit on a Key point - when you turn Sentry Mode on - that's no longer Vampire drain. The power required to run Sentry Mode. If Sentry Mode was off and still consuming power - that is Vampire.

 

[Dirty_B]

What year is your S? Also what kind of temps does your vehicle see overnight during the winter?

Ours is a 2017, and we see 20s/30s but usually 40s overnight. Just like summer I've seen 105, but right now mid 80s to upper 60s at night.

I was putting stuff in the garage and I could hear the T's front louvers and other electrical gear powering up and moving when it had been off for 4 days except me reading miles remaining once per day. I would have hoped that by now they would have figured out a lot of the drain, but alas no. There's even a story on here about a power steering pump being energized and running continuously when the truck was off. That's great for vampire drain, sarcastic, and future reliability of the pump.

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