The Insta360 Titan Charging Cradle charges up to two Insta360 Titan batteries at the same time. There are two versions of the Titan battery. The one that comes with the camera has a capacity of 10,000mAh, and the spare version has about half that, at 5700mAh. This Charging Cradle can recharge two 10,000mAh models in approximately 2 hours and 40 minutes, and two 5700mAh versions in 1 hour and 40 minutes.