I also did extensive run time testing on the Arc LS- here...
and I know I have a graph of my results from the Arc AAA (prototype) conducted almost a year ago. Can`t currently find it though. A repeat round is due when I get my hands on a couple Version 3.0`ses.
I also ran the Arc through a few different kinds of batteries.
The break in the lower section is from when I fell asleep at the computer and missed some data. The light was turned off and restarted to finish once I woke back up.
mmm, 4.5 hours or so on 2 x AA lithiums...I like that, which is why I just ordered the 2AA version. I reckon that the 2AA version of the LS will be great (when I get one, anyway