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How many KM vamipre loss for YOUR EU S60?

I´m starting to think something must be wrong with my S60, European, software version 5.0 (now 5.6 though). I do not charge it every night, as I am charging the car at work instead. I have had the car about one month now, and I am very surprised as to the amount of power that is sucked out every night on this vehicle. I have heard others reporting 1-2km pr night, but my car has an average of 20-30km per night of loss!!

As for the circumstances, my garage turned out to be too small for the S, so I have to rebuild parts of it (hurray!! :)) - thus - my car is now parked outside. The temperature at nights is probably about 0-10 degrees celcius.

Any other EU S60, or S85 for that matter, that has tested this? I would want to know what´s "normal" out there prior to reporting this as an error...

I would imagine it takes a lot of energy to keep the batteries warm when parked outside in near-freezing temperature. Your vampire losses should be much lower if you park in an insulated, warmer garage.

Yeah, sure, but my garage is certainly not heated either, that would be a complete waste of huge amounts of energy in this climate... I guess I have to calculate quite a lot of energy being spent by my dearest mr. S then....

From this thread it seems as I am not the only one with excessive drain on my 5.0 S60... http://www.teslamotors.com/forum/forums/quickly-losing-mileage

The MS does not keep the battery warm when not in use. I think that the situation is that the battery is cold soaked and will report a lower charge than it actually has when you first start it. Also, at the beginning of use, you will use a lot more power getting the battery back to optimal temp.

Colder Li-Ion cells = lower Voltage. You can experiment with an RC-grade small lithium battery. Take two of them, charge equally. Put one in a refrigerator and keep one on a table/shelf. Test voltage the next day and the refrigerated one will be lower voltage. EVs judge their "mileage available" by the pack voltage rather than keeping track of "power-in" and "power-out". Voltage is not a fuel but rather a consideration of how much charge remains to be drawn out of the cells. Lower voltage "implies" perhaps lower energy available and thus lower mileage available. When it warms up during the first few miles of driving, mileage may raise up (watch the gauges after you leave in the morning, not when you power-up).

To Broder's dismay this did not happen. Either park your car in the garage (it does not need to be heated) or plug it into a 110V outlet which will give a slow charge and keep the temperature up.

Thanks for the heads up on the temp. / voltage... However, the drain from heating the batteries comes as an addition to the already "lost" drainage overnight..... It usually eats another 3-4KM range just to get the batteries heated alright.

Please remember that temperatures - inside or outside my garage - is minus 5-15 degrees for quite a number of months here in Norway. Although it´s no problem charging the car overnight, it´s at a cost. And a fact that I do feel has not been communicated very clearly thus far (probably due to most Teslas driving around in the hot Californian climate... :)).

I will continue monitoring the loss and report back. This fact might be especially important if one is considering parking the car for a while being on Holiday for example. Draining 30 to 50KM per night (already at temperatures above 0 celsius it draws 20-30KM), the car would be all empty after less than a week......... THAT´s information one should be aware of - as my Tesla rep told me to expect 1-2KM loss per night when I picked it up here in Oslo just some weeks ago.

This just does not sound right. We had reports last winter from folks in Canada who would experience vampire losses over night but not as dramatic as yours. I would contact your Tesla Service Center and discuss the issue with them.

Yikes..that's a brutal loss! I'm here in Los Angeles and I will park my Model S for a few days so I'll see what the vampire loss is when I get back. But of course it's nice and sunny here at LAX. It was 93 degrees today!

I have a 60 as well, store it outside (in my carport), and lately it is 5-10 degrees Celcius at night. I am located in Vancouver Canada, so current temperature may be similar. Using the visible tesla app I see it is loosing 1.6km per hour in vampire losses. But I am still on software 4.5. I usually have it plugged in at night, but sometimes I don't and this is what I have noticed those times. When I first got my S I would have a full charge at 309km (v4.2). Now it fully charging to 280km. I am kind of concerned about that...

1,6km per hour sounds about what I am getting. My loss of 20-30km is from about 4PM to 9AM next day, or about 17 hours. 1,6x17 = 27km.

Last night, now with the 5.6 installed, I lost about 10km in 8 hours, slightly less than the nights before that, probably due to the fact that this night was warmer than normal.

By other words, it seems as vampire loss for Tesla-users is cold climates is still "on", even with the newest firmware. Quite a bit of a disappointment I must say.

I have, however, contacted Tesla as well, and I will certainly report back if these losses are indeed considered a failure of some kind.

@Bradtc
Tesla changed how they calculate remaining range. And I heard rumors that they could tweak it more (up or down), but that does not mean you have smaller or bigger battery capacity.

@lygren
could you make test and let the car parked outside for more than one day, at least two nights, so we could see if that vampire effect stack together?


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