RAPID CHARGING - Achieve 100% battery in just 70 minutes for a single 2040mAh battery, ensuring minimal downtime for your Insta360 X4 Air Action Camera. DUAL BATTERY EFFICIENCY - Fully charge two 2040mAh batteries in 100 minutes using a PD fast charge 9V/3A adapter, maximizing your shooting duration. SEAMLESS COMPATIBILITY - Specifically designed for the Insta360 X4 Air Action Camera, guaranteeing a perfect fit and optimal charging performance. INTEGRATED CONVENIENCE - Features a built-in USB-C cable, providing a streamlined charging solution without the need for additional accessories.