Drone batteries must be healthy in order for them to remain safe and to have longevity, these tips will help you in avoiding swollen and unusable/unsafe batteries with your DJI drones 00:00 Drone battery Introduction 00:18 Swollen DJI drone Batteries 00:55 Deplete to 30% during first 10 flights 01:25 Deplete to above 20% for subsequent …