IT WORKS!!
I hooked up the 25’ extension cable to a 3-Port 30W RAVPower Travel Charger Multi Port USB Charger and a V2, Worked great. Then added a 6 inch USB power cable and another V2. WORKED!
Then another 6 inch USB power cable and another V2.
ALL 3 CAMS WORKED!
I would not expect all 3 to work off one Wyze V2 wall wart.
/edit
I hooked one up to a standard Wyze V2 wall wart and it’s running a V2 cam just fine
This will allow me to deploy 3 cams up high with one cord. 
/edit
I’ve hooked all 3 up, daisy chained with the 6" cords, recording to SD card, in the dark with the IR lights all on an they seem to be running fine off one port of the RAVPower charger.
I’m envisioning mounting them on a building corner. This should theoretically give me a 330 degree of view using one main power run,
/edit 2
running time lapse on the 3 cams did not work
Displaying 3 cams w IR on was ok
Further testing needed