You'd think that DJI would have solved their battery problems by now. I just received a new P4 Pro purchased through Amazon and when I plugged in the remote and the drone battery (to the charger) after 2 hours I've got one blinking light on both....had a wonderful 1 hour "chat" with DJI and they want to replace the entire unit. So I just wasted 4+ hours on a problem DJI has had for ?????? years? Maybe all the horror stories about DJI and the battery issues are true? I certainly hope not, but I'm not impressed at all.