Probably a stupid question but if I have a battery in my gopro camera does it not steal power form the DJI Battery? Flight time is only a bout 10-15mins with a brand new quad and zenmuse but not having a battery in gopro.

you should have your gopro battery fully charged to avoid it taking it's power from the phantom. My flying time is 25 min (incl. an immersionRC transmitter). 10-15 min is bad. Was your phantom battery fully charged?

Wow 25 mins! Man that must be nice.

Okay yea I've always had the battery out. Explains a lot lol. I'll pop that sucker in there!