Up to 1X extra charge (Based on internal testing vs. iPhone 8. Results may vary by device and usage conditions). Pre-charged & ready to use. 3,350 mAh (12.2 Wh). Up to 1x extra charges (Based on internal testing vs. iPhone 8. Results may vary by device and usage conditions). 1 USB port. For Apple, Android & most USB-Powered Devices. Compliant carry-on. Recycle battery according to local, state and national regulations.