I was using ground station and was doing a flight mission with 4 points set around me. The first and furthest being around 1200 feet away at 200 ft altitude. I hit the first waypoint and lost signal for a minute (it usually does at about that distance) but quickly regained it. It headed to its second waypoint which was 500ft away when a warning flashed on the screen that read "WARNING BATTERY BELOW 30%, RETURN HOME?" I had been paying close attention to the battery percentage on the top right of the camera app and it read 75%. I noticed that the timer on the bar up top said one minute. I hit the warning icon to bring it home and it came back. I brought it to about 3 feet high and hovered for about 5 min and the timer bar stayed at 1 minute. The battery icon had gone down to 65% at this time which would be about right. I do not have the latest version of the DJI app. I had it installed but it kept crashing when I moved the camera so I unintalled it and reinstalled the previous one.