The DJI TB50 is a spare or replacement Intelligent Flight Battery for the DJI Inspire 2 quadcopter or Ronin 2 gimbal. The DJI TB50 Intelligent Flight Battery features 4280mAh power, and when paired with another TB50 provides the Inspire 2 with up to 27 minutes of flight time.The new Inspire 2 battery uses higher performance and a higher density battery cell with an overall larger capacity as well as an updated management unit. Its performance in low temperature environments has been optimized with a built-in 70W self-heating system capable of heating itself to 41F (5C) every minute. This self-heating function can be enabled either automatically or manually. The management unit constantly monitors battery status, making all information, including battery level and battery temperature, easily visible in DJI GO.