Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.
Register

Converted Audi A2 goes 605 km (378mi) without charging

Adm

Active Member
Jun 7, 2010
1,657
842
The Netherlands
In a cooperation between Lekker Energie (energy supplier) and DBM Energy (battery producer) a converted Audi A2 drove 605 km or 378 mi from Munich to Berlin without charging. They drove at night on freeways with a speed of max 130 KMH or 81 MPH and an average of 90 KMH or 56 MPH.

The Audi was converted, but fully functional 4 seat car with all options of the ICE version.

http://www.lekker-energie.de/unternehmen/pressemitteilung-artikel/id/165 (in German)
 
Last edited:

AnOutsider

S532 # XS27
Apr 3, 2009
11,957
200
I can't read German, but that's pretty amazing. Were there special properties of the A2 that made this possible, or more related to the batteries used by the converter?
 

Adm

Active Member
Jun 7, 2010
1,657
842
The Netherlands
http://www.lekker-energie.de/unternehmen/pressemitteilung-artikel/id/164

Möglich wird die Fahrt durch die von der DMB Energy entwickelte KOLIBRI Technologie. Der intelligente Energiespeicher auf Lithium-Metall-Polymer-Basis ist deutlich leistungsfähiger und leichter als andere Batterien.

This trip was made possible by Kolibri Technology developed by DMB Energy. The intelligent energy storage system based on Lithium polymer is substantially more powerful and lighter than other batteries.
 

Iz

EVs are here to stay
Nov 22, 2006
1,080
22
New York
Approximate Translation:

For the first time a forklift equipped with a battery of DBM hummingbird on one battery charge, drove 32 hours and it has 28 hours in regular shifts worked. The operating time is usually from a normal forklift 8 hours.
 

Adm

Active Member
Jun 7, 2010
1,657
842
The Netherlands
As to the forklift: I have no clue what kind of batteries are standard there, but the energydensity is not very good. A 24kWh battery weighs 715kg. (48V and 500 Ah, correct me if I am wrong).

If you'd put a "Tesla" battery in a forklift, that would already make a huge difference, but would also increase the price of the forklift substantially.

Not quite sure how they compare the two as there is very little information in their website.
 

ChargeIt!

Member
Jul 24, 2008
619
1
Ok ... impressive new technology. But factual errors too. They claim "Weltrekord" (world record) for distance. Baloney ! 323km=201miles. Tesla Roadster can do that in normal conditions with average drivers daily ! And beat that distance by more than 55% (313 miles not km); admittedly they did NOT do it in an "alltagstauglich" way (daily practical use).

Reference: AussieRecord
 
Mar 30, 2010
463
2,594
ChargeIT, your quote
Baloney ! 323km=201miles.
was just the stop over. They drove farther to Berlin a 605 km =~ 378 miles in total with 18% left in the batteries.

LeKKer
Bild

Although, 90km/h is a bit low for German Autobahn (I guess that why the drove at night, otherwise even trucks would overrun that tiny little A2) the result ist quite impressive. They mention, they used 100kw/h battery... without compromising cargo space or seats.
 

ChargeIt!

Member
Jul 24, 2008
619
1
ChargeIT, your quote was just the stop over. They drove farther to Berlin a 605 km =~ 378 miles in total with 18% left in the batteries.

LeKKer
Bild

Although, 90km/h is a bit low for German Autobahn (I guess that why the drove at night, otherwise even trucks would overrun that tiny little A2) the result ist quite impressive. They mention, they used 100kw/h battery... without compromising cargo space or seats.

OOOOPS ! Sorry ! (Where's that red-face-embarrassed emoticon ?) Apparently their article is in dynamic update mode and I was not reading carefully. Apologies, again. :redface: (That should not be a upward-smiley on that poor excuse of a redface emoticon.)
 

Iz

EVs are here to stay
Nov 22, 2006
1,080
22
New York
100kw/h is a large battery. Looks as if they could have gone ~ 90 additional miles, provided 18% is the actual remaining capacity. Anyone know what the approximate weight of a 100kw/h lithium polymer battery pack would be?
 

TEG

Teslafanatic
Aug 20, 2006
21,763
8,734
100kw/h is a large battery. Looks as if they could have gone ~ 90 additional miles, provided 18% is the actual remaining capacity. Anyone know what the approximate weight of a 100kw/h lithium polymer battery pack would be?

Leaf ~25kWh ~600lbs. So 100kWh ~2400lbs. (Heavy!)
 

TEG

Teslafanatic
Aug 20, 2006
21,763
8,734
http://www.e-mobility-21.de/e-auto-...von-muenchen-nach-berlin-e-mobility-21de/189/
Lekker-Mobil-Mobility-House.jpg


http://www.onejournal.de/item/energ...mehr--kilometer-ohne-nachzuladen-pr64705.html
http://www.cleanthinking.de/dbm-energy-kolibri-lekker-mobil/7189/
lekker-mobil-300x199.jpg

...{loosely translated} with a capacity of 115 KWH for the AUDI a2. ...the electrical motor is 55 KW...
...{loosely translated} 119 KWH capacity for that distance (approx. 19 kWh/100 km) is not rocket science. The questions are: how large and heavy is the battery? How long does it last (calendar and cycle life), and how much does it cost?

...{loosely translated}“The lithium metal polymer cell of DBM Energy is about as large as a flat bar of chocolate, weighs 180 gram and has a power density of 250 Wh/kg” writes e.g. solardriver online.de If true, it would indeed be a technological breakthrough. Can Akkus mass produce these cells? However, what is the cost? PapStar is to already operate several of their fork-lift trucks with Akkus batteries, so it must not be too prohibitively expensive.
http://www.berlinonline.de/berliner...dump.fcgi/2009/1219/automobil/0016/index.html

...Die Lithium-Metall-Polymer-Zelle von DBM-Energy ist etwa so groß wie eine flache Tafel Schokolade, wiegt 180 Gramm und hat eine Energiedichte von knapp 250 Wattstunden pro Kilogramm...
http://www.heise.de/autos/artikel/Elektroauto-faehrt-von-Muenchen-nach-Berlin-1126031.html
...{loosely translated}For the A2, a battery pack, which weighs 300 kilograms and offers a capacity of 100 KWH, indeed a outstanding value for today's battery technology. The efficiency amounts to over 97 per cent and one can it practically run dry, without damaging the battery.
 
Last edited:

ChargeIt!

Member
Jul 24, 2008
619
1
I find it hard to believe the battery is 2400 lbs, as the car itself weighs 2233 lbs with a diesel engine. Better energy density?
It isn't (2,400 lbs) ... Which is the impressive part of this supposedly "new" technology they are "celebrating". Very little technical details published at this point from what I can find.
 
Last edited:

domenick

Nerd
Jan 2, 2008
621
59
Florida
...Die Lithium-Metall-Polymer-Zelle von DBM-Energy ist etwa so groß wie eine flache Tafel Schokolade, wiegt 180 Gramm und hat eine Energiedichte von knapp 250 Wattstunden pro Kilogramm...
... The lithium metal polymer cell of DBM-Energy is about the size of a flat chocolate bar, weighs just 180 grams and has an energy density of about 250 watt hours per kilogram ...

250 wh/kg! What's not impressive about that? Aren't the Panasonics being considered for the Model S 240 wh/kg?

Sounds to me like a 100 kWh pack of these weighs a mere 400 kg 881.8 lbs. But then, I really suck at math so if anyone thinks my calculation is wrong, go ahead and break it to me gently.
 

vfx

Well-Known Member
Aug 18, 2006
14,790
40
CA CA
Since it's not a production vehicle it can make a lot of claims and many questions would be prudent. For example: does it still have airbags? Are they working? Would they (or the whole car) pass a crash test?

Not like Tesla couldn't whip up something faster or run-farther if they wanted.
 

stopcrazypp

Well-Known Member
Dec 8, 2007
9,936
4,850
This should be an interesting story. Waiting for more details and verification.

It would be nice to have direct quotes from the creators and a picture of the pack at least (or specs of the cells).

Not like Tesla couldn't whip up something faster or run-farther if they wanted.
True, Tesla could easily build a 71kWh pack for the Roadster simply replacing the 2200mah cells with Panasonic 2900mah NCR18650 (232Wh/kg) which has been shipping for a while (don't know if the 245Wh/kg 3100mah NCR1650 cells are shipping in any significant volume yet, even though they have started production).

I guess this record isn't as significant since it is not a production vehicle, but it could still shut up a lot of skeptics if even a prototype is made with almost 400mi range, running at highway speeds
 
Last edited:

TEG

Teslafanatic
Aug 20, 2006
21,763
8,734
http://solar-driver.dasreiseprojekt.de/hauptbericht.php?ok=15&uk=62&uuk=0&uuuk=0&id=2273
01b.jpg

{loosely translated}... The lithium metal polymer cell of DBM Energy is about as large as a flat bar of chocolate, weighs 180 grams and has a power density of 250 Watt hours per kilogram...
{loosely translated}...DBM is able to hold the current flow stably between minus 40 and plus 100 degrees Celsius.
{loosely translated}...Safe without active cooling. Half the price of typical Lithium batteries.

http://www.berlinonline.de/berliner...ump.fcgi/2010/0201/wirtschaft/0005/index.html
 
Last edited:

About Us

Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.

Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


SUPPORT TMC
Top