battery signal error

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    P3 Pro Battery Signal Error

    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...