I have a few questions. I was unable for a few days to tell if my battery was running out due to a setting in the software set wrong so I ended up landing/softly crashing due to dead battery. I read running this low can damage the battery. Well I now charge which takes only about 30 minutes but flight time is only about 2 or 3 minutes before I'm flashing red. This is brand new on xmas. Is the battery fried? Also the charger, is it a float charger that I can leave on for long periods of time? How should I charge the battery, fully charged off the charger, fully charged on the charger? Sorry for all the questions but it seems dji builds a great product but lacks in the instructions department.