I have a Stick Up Cam Battery HD 3rd Gen. According to this article, “… indoor/outdoor power adapter (sold separately) … for nonstop power”.
I believe that adapter is this one: Indoor/Outdoor Power Adapter (Barrel Plug). I can see its output is 5V DC, 2.5A .
What are the details of the barrel socket, such as inner/outer diameter and polarity?
Any help would be much appreciated.