DJI Mini 2 Flight Battery 

The DJI Mini 2 Intelligent Flight Battery features a high energy density that not only lowers the overall weight but extends max flight time to 31 minutes for even more fun. With the built-in DJI Intelligent Battery Management System, battery status is monitored and reported in real-time, allowing you to focus less on battery level and more on flying. Stable energy output and accurate calculation of remaining flight time add another layer of safety during flight.

Specifications
Model: BWX161-2250-7.7
Rated Capacity: 2250 mAh
Battery Type: LiPo 2S
Rated Voltage: 7.7 V
Charging Voltage Limit: 8.8 V
Charging Temperature: 5° to 40°C (41° to 104°F)
Max Charging Power: 29 W