I got told by Gtech that the average range is approx 30 miles. The battery has 4 light segments and I'm at 8 miles per segment, over a fairly flat run to work. So 30 miles seems like a fair number.
Those battery indicators are normally a long way out, in an optimistic way because they measure voltage. Voltage drop/capacity is not linear on any battery, but with lithium batteries the non linearity is even worse.
I can't find the battery capacity on the web page (which is full of BS) and I note that they continue to insist that's it's an 'electronic bike', which it is not.
Also, 'Aircraft grade aluminum' I suspect is another piece of marketing nonsense. I'd guess it's 6061 or 7075 aluminum alloy. (Don't know for sure as website fails to elaborate).
Another way to put this would be: It's made out if the same stuff that the vast majority of bikes are made of, and have been since the turn of the century.
While I'm sure it's a good choice for some, for me the deliberate obfuscation of fundamental specifications is a big turn off.
However, I'm guessing I'm not the intended demographic.