Install the new DJI Intelligent Flight Battery in your Phantom 4 Pro quadcopter and be ready to fly for up to 30 minutes. The “Smart” aspect of the battery enables communication that not only shows the current capacity within the app itself, but also calculates the remaining flight time based on the distance traveled and other factors. While flying, the battery will send an alert to let you know when minimum capacity is available to plan a safe flight back to the takeoff point. In addition, the built-in battery management system prevents overcharging and over-draining, and when placed in long-term storage, the battery will self-discharge to a safe level to maintain cell health.