I use a 7AH sealed lead acid battery with a USB adapter hooked up. The kind you use for back up UPs’s. Pretty light weight and I get a full day out of it or more.
They work great.
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?
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