How far can you drive on battery alone in an '01 A8L?

[Snoopy]

On 2011.03.02 07:12, Britt Crowell wrote:
> So buggying on down the I-state at 75-80, trying not to stay directly behind
> anyone to get full cooling power of the wind, didn't want that electric
> cooling fan switching on. So I figured that was as good as anything. Only
> real power variable would be firing the spark plugs. So trying to balance
> the power consumption of all the other mandatory car systems that run.

Sounds like Apollo 13 :) How big was your battery?

> At about 1:15 the low battery warning came on. Within a min or two the
> traction control cut itself off. A minute later the ABS was out. Next was
> the big thump! Trans went in to limp mode. So the next church parking lot we
> turned into (one every 500ft here in the south whether we need it or not!)

This is the thing I experienced too. Why does it switch so hard while you're 
still driving at a high speed? Last summer I had transmission wiring problems, 
and while I was slowing down from ~65mph to ~55mph, the "brains" decided to 
switch to limp. It was not a thump, but felt more like someone rear-ended me. 
I was hoping to see parts scattered on the highway behind me, but it turned 
out all ok :) IMHO, it is not only a strain on all trans components, but quite 
a shock to driver.