Took Mavic Air for recent short spin to film storm damage .. first flight with battery registering 60% resulted in critical battery failure after a couple of mins of flight time .. just rescued drone from landing on neighbours roof, replaced battery with one showing 55% and took off thinking I’d maybe installed a very low battery first time .. almost identical thing happened went from 3 bars on battery to registering critical failure in 2 mins this time landing up in neighbours tree which took a long time to get down. Since fully recharged both show no issues I.e. adequate voltage and only showing about 90 flights each. I have never had this happen and am an experienced MA user ? Not game to fly at the moment.