"The maximum flight time (with X4S) is approx 27mins. 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 41°F (5°C) 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.

Specifications
Capacity: 4280 mAh
Voltage: 22.8 V
Battery Type: LiPo 6S
Energy: 97.58 Wh
Net Weight: 515 g
Charging Temperature: 41° to 104° F (5° to 40° C)
Operating Temperature: 14° to 104° F (-10° to 40° C)
Max Charging Power: 180 W "