I am a bit disappointed. Have 2 V2 cams that I decided to move after receiving two V3 cams. When I went to plug the small usb power plug back into the cams, there was no response. It was as if there was no power. Tested each cam with another working adapter and cord and no response from either cam. Upon further investigation I determined that on at least one cam the copper trace on the small wafer of the female micro usb connector inside the cam was damaged. Since both cams are out of warranty it looks like I am out of luck.
Disappointed that they only lasted a bit over a year and the first time I moved them they failed.