Feature: 1. Smart Charging Management: Fast charge power bank recognizes high and low battery levels, allocating maximum power to charge high battery levels first, fulfilling your power needs at the fastest speed. 2. Long Lasting and Portable: Battery charging hub built in 7710mAh large capacity battery, can charge up to 3pcs batteries, ensuring uninterrupted creation and storing up to 4 memory cards on the go. 3. Fast Charging: Mobile power bank can charge 3pcs batteries simultaneously at 20W power. USB C supports PD3.0 20W output for fast charging mobile phones, action cameras, and more, eliminating outdoor power anxiety. 4. Forward Fast Charging: Battery power charging bank with external power adapters can charge the mobile power bank via USB C at up to 20W power with PD3.0 support, which can bring you much convenient. 5. Travel Companion: Fast charging power bank is suitable for Insta360 X3 batteries, meeting aviation standards and suitable for travel, camping, hiking, and photography without worrying about battery life. Specification: Item Type: Fast Battery Charging Hub for Insta360 X3 Material: ABS Battery Capacity: 7710mAh Lithium Battery (Included) Application: for Insta360 X3 Cameras. Package List: 1 x Battery Charging Hub 1 x Charging Cable 1 x User Manual