Incredible Charging Speed: 18W power delivery port takes only 30 minutes to recharge your iPhone 11 Pro from 0% to 50% with a USB-C to lightning cable (not included) Tiny but Mighty: Using LG 21700 battery cells, 15000mAh power bank is small in size(5.9 x 2 x 1in/ 9.9oz), but big on power to provide 1 charge for iPad Pro, 2.8 charges for iPhone 11 and 2.6 charges for Galaxy S10 Powerful 30W Total Output: 18W PD 3.0 USB-C port and 12W QC 3.0 USB-A port allow to simultaneously power up to 2 devices with a combined output of 30W Ultra-Fast Refill: Equipped with 18W power delivery input, portable charger can be fully recharged in 4 hrs, recommended to use a PD charger (not included) for faster recharging Superior Safety, Wide Compatibility: Stay 100% safe while charging with advanced overcurrent protection, overdischarge protection, overvoltage protection, short-circuit protection, and fully compatible with almost all USB-C and USB-A powered devices Note: 15000mAh is the total of the nominal rated capacity of the internal battery cells