Get charged up with the ultimate dual backup charging station by Kickpower. This power bank features a power capacity of 4,000 mAh so you can take more energy with you on your next adventure. This backup battery is great for portable charging whilst traveling but also can be used around the home or office. Allowing you charge mobile devices without having to be tethered to a short cable and a wall outlet. Each of them fully charges 2.4 times for any smartphones or devices that can accept Usb-a 2.4 such as the iPhone 11 series, X series, 3.6 times for older generations like iPhone 8, and 2.2 times for Samsung Galaxy S9. But can be used with any newer device using a Usb-c to Usb-a cable.SpecificationsCapacity: 4000mAh/37WhWeight: 0.48 lb.usb 1 Output: 5V/2.4AUSB 2 Output: 5V/2.4AMicro Usb Input: 5V/2.0ARecharge Time: Approx. 5 Hours (5V/2A plug required)