The spare/replacement Battery for the Insta360 ONE X2 camera is the same 1630mAh battery included with the camera. It comes with a battery case so it can be kept safely in your bag until it's ready for use.
The battery is suitable for temperatures from -4 ℉ to 104℉ (-20℃ ~ 40℃).
The battery room temperature run time is up to 80 minutes.