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Battery range

jetron Apr 3, 2015

  1. jetron

    jetron Active Member Audi A3 etron

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    I thought I would start a new thread as the "Audi A3 e-tron" thread was becoming a bit confused.

    On the subject of EV range, the Audi USA brochure for the new e-tron states...

    With an expected electric range of between 16 and 19 miles (final technical adjustments are being tested and implemented) from a fully charged battery, a substantial amount of your daily driving needs can be met before your next recharge, while the gasoline engine lets you venture on longer journeys whenever it suits you.

    with a note...

    Based on preliminary manufacturer’s estimates. EPA range and fuel economy estimates not available at time of printing. See Fuel Economy for updated information. Actual mileage and range will vary and depend on several factors, including driving and charging habits, weather and temperature, battery age and vehicle condition. Battery capacity decreases with time and use. See owner’s manual for details.

    The full brochure is available at http://www.audiusa.com/content/dam/...-Audi-A3-Sportback-etron-Brochure-Updated.pdf

    Perhaps they may be more realistic on the other side of the pond or perhaps a new breed of lawyer has emerged who specialises in EV range litigation :audibash:
     
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  3. mckjerral

    mckjerral Member

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    Yeah, might be an advertising standards thing, it's expected rather than upto.
     
  4. jetron

    jetron Active Member Audi A3 etron

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    Having just charged from empty (0 miles range showing and mode just changed off EV mode). The meter readings were 28.5 kWh before and 36.0 kWh after, so it appears that a full charge absorbs 7.5 kWh (+/- 0.2 kWh) which at 13.35p per kWh, if I used Ecotricity, amounts to exactly £1.00 a charge but I am able to use solar PV these days so it's free :kissmyrings:
     
  5. olekvi

    olekvi Member

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    Best for now: [​IMG]
     
  6. jetron

    jetron Active Member Audi A3 etron

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    Wow, that's about 33 miles! Interesting to see how much actual range you get on that charge.
     
  7. olekvi

    olekvi Member

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    I've only driven short distances before charing on EV only, and longer distances on Hybrid auto. The latter seems to fit most of my driving. Have had the car for more than two weeks now, still got half a tank of petrol :)
     
  8. jetron

    jetron Active Member Audi A3 etron

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    Either way, the 2016 Audi A3 e-Tron is coming to USA in week 3 of October 2015
     
  9. scalbert

    scalbert New Member

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    The differences are in the test methods with the Euro being ideal and the EPA being more realistic. There is also a potential difference in the actual useable charge. I believe this is a 9.5 kWh battery but they are only using 7.5 kWh of it in the UK and may only be 7 kWh in the US.

    Plus, someone would file suit if they were not getting close to the advertised range. Gotta love the legal system in the US.
     
  10. jetron

    jetron Active Member Audi A3 etron

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    Doing some further research on the technical systems of the e-tron, I discovered a slide that lists the capacity of the European variant of the e-tron as 8.8 kWh of which 7.04 kWh are useable.

    Further details of the e-tron's thermal management using its three-circuit cooling system is available on the Green Car Congress website at http://www.greencarcongress.com/2014/04/20140403-mqbphev.html and provides some interesting insight into the e-trons heating and cooling which should provide answers to some earlier questions on this forum.
     
  11. jetron

    jetron Active Member Audi A3 etron

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    Having just modified my Audi EVSE connectivity to enable charging at 16A/8A, my e-tron app has shown a range of 32 miles for the first time. This was achieved having previously charged at 8A.
    [​IMG]
     
    1roadwanderer likes this.
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  13. ACWKGYTO

    ACWKGYTO Well-Known Member

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    How many miles do you really get out of it in EV mode ?

    Whats your best and worst ?
     
  14. E T Ron

    E T Ron New Member

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    As you might expect, predicted range and actual range depend on driving conditions. My overnight charge on the supplied 13A charger gives a '21 mile' range on the indication. My daily commute is 15 miles. In the summer this was easily achieved in EV, even with a little bumper to bumper crawling. But come December, with lights, wipers and heater making demands, I have to tread very lightly on the watts to stand a chance of getting home without a bit of petrol assistance.
    Would it really make a difference if I installed the higher power charging point? Has anyone else seen evidence of it packing more miles.?
     
  15. mckjerral

    mckjerral Member

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    It doesn't affect range at all, only charge time. You'd need a bigger battery to get more range
     
  16. jetron

    jetron Active Member Audi A3 etron

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    I believe your statement to be correct, but every time I charge at 16A rather than 8A or 10A I always seem to get a greater estimated range. Either way it is not something that I could prove or disprove.
     
  17. Pulp84

    Pulp84 Well-Known Member Audi S3

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    Excuse my post regarding a different marque of car (VW) but I have now picked up a Golf GTE and wanted to share my experiences seeing as it and the e-tron are basically the same car.

    So...charging At 16A with a wall charger I consistently get 28-30 miles of estimated range. Have yet to see any effect this range on this due to the weather (had it a month). Very occasionally it will say 31 miles but this is rare.

    The only exception to this being if I drive my GTE home in a spirited fashion while in GTE mode and run the battery down to nearly zero. I have found when I come to charge it up the estimate range will always be around 24 miles.

    Therefore I drive it mostly like a saint and it charges up to a higher range consistently. Again, can't prove it but I think the last journey influences the estimated range come charging time.

    Have charged a couple of times with the 3 pin socket and the estImated range is woeful - 21-22 miles on a full charge regardless of how I have driven it before charging.
     
  18. Ben Hall

    Ben Hall Member

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    My e-tron demo is constantly out with different drivers, and it always has different ranges depending on the driver. The car just looks at the history of driving and predicts on a full charge it will achieve x number of miles.

    For example, i get into the etron and it predicts 28 mile range, i use it for a few days it goes down to 21 miles, goes out on demo and i get it back around the 30 miles range.

    Petrol mile prediction is exactly the same in my s3 i average 20mpg. if i go on a long journey i can see it creating up to 30mpg. the weirdest sensation is on a full tank my car may show 220 mile range, i drive 80 miles and i will have 220 miles left in the tank.

    all predictions work on history
     
    Sandra likes this.
  19. PeterS

    PeterS Member

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    I was pondering this, as I used our e-from for a 400 mile round trip this week, just to see what it was capable of.

    I filled up before I left - 698 miles of local running around had used 26 litres, which is just under 122mpg I think... So at least the trip computer is pretty accurate. Though I probably used another 200kWh of electricity - so £20/20 litres worth maybe? I reckon equivalent to more like 69mpg in cost terms. Not sure emissions wise...is a diesel/petrol engine more or less efficient than the grid...?

    I left for Derby fully charged, and ran it in 'hybrid auto' mode and did (just) manage the 414 mile round trip on one tank of petrol and a full charge...driving normally and keeping with the flow of traffic. Only switched to EV mode in the traffic jam on the M25, which used half the battery.

    Trip computer reckoned 53.5 mpg, refilling took 36 litres for 414 miles so 52.2 mpg calculated. Pretty close!! Interestingly the car claims that 31% of the miles were 'emissions free'. Which is either driving on the electric motor only or coasting with the engine 'off' I think... Also, having charged it overnight, in the morning I saw the highest battery range I've seen since we've had it - 32 miles! image.jpeg image.jpeg image.jpeg
     
    E T Ron likes this.

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