The Power Bank 321's incredibly lightweight and compact design makes it easy to take with you wherever you go. An iPhone 13 can be fully charged with this small, portable charger, which has a 5200mAh capacity. Charge two gadgets simultaneously: With a combined output of 12W, you can charge two of your most important devices at the same time using the USB-A and USB-C ports. Superior Security: An extensive set of security features that combine to give your charger and device the best possible protection.