I thought the group might be interested in something that happened while flying my M30T. After flying for about 5 minutes, I received a RTH message and noticed that one of my batteries was reading 0 voltage. I started my RTH and as I began my descent with the camera down I observed a battery falling from the aircraft and slamming into a metal roof below. The aircraft landed perfectly normally with only 1 battery (the metal roof was fine but the battery was destroyed). I guess that I must not have had the battery properly locked in but did not receive any warning on the controller until it came loose (in flight). Glad to report that what DJI says about being able to land the M30 with one functioning battery is true!