The Mavic Mini Intelligent Flight Battery provides a maximum flight time of 30 minutes.
Each battery has a built in DJI Intelligent Battery Management System, the battery status is monitored and reported in real-time, allowing you to focus less on power levels and more on flying.
These are genuine batteries with warranty.

Mavic Mini Intelligent Flight Battery that provides up to 30 minutes of flight time. 

Model number is MB2-2400mAh-7.2V
Rated Capacity is 2400 mAh.
Battery Type is 7.2V
Limited Charge Voltage is 24 W.
Charging Temperature is 5 degrees to 40 degrees.

1 x Mavic Mini Intelligent Flight Battery

DJI Mavic Mini
DJI Mavic Mini Fly More Combo