One time I had the privilege of shooting alongside the Aussie Shooting team when they were practicing for the 1000 competition. They were using a USB power pack to power their Labradar.
Has anyone done the firmware upgrade?[/QUOTE]
This is the power pack I use. 4 hrs with the LAB on and it never left the full mark. About the size of a cell phone. And yes the firmware update is great, arm and disarm from the phone and all info is on the phone as well.
https://www.amazon.ca/Anker-PowerCor...anker+13000mah