The BioLite was delivered to a Californian address early last week and it has just arrived at my place in Melbourne this morning.
First it is heavish at 2.2 lbs but (unexpectedly) it has a LiIon batt built in and that is what will make the USB charging work...
Rated USB output is 2W at 5V continuous ,4w @5v peak.
It is very well made , feels strong and rated to hold 8 lbs.
This afternoon I will shoot a short video on this doing the first burn...
BTW it is about 4" in diameter so just a bit wider than a 1L Nalgene.
My YouTube channel is 'francodarioli"