I have a P3 Pro and last week was mapping one of our corn fields with it using the app DroneDeploy. The field is about 150 acres, so I had to use all 3 of my batteries. I went through my first 2 with no problems and then stuck in my 3rd one. It was not working, so I went into the DJI GO app...
Hi, I just saw your post from March 29, 2016 on the battery signal error you received from your P4: http://www.phantompilots.com/threads/battery-signal-error.84003/
Last week, the exact same thing happened to my P3 Pro and I have been searching for what to do with no luck. Did you ever get yours...