Power Core+ 20100 USB-CPort - 1 USB-C Port / 2 USB The Premium Portable Charger USB-C Compatibility Capable of charging the new Mac Book at 5V/2.4A. USB-C charging can be activated by pressing the Power Wheel.Powerful Synergy Anker uniquely integrates smart-charging Power IQ and current-stabilizing Voltage Boost technologies, providing your device with the fastest possible charge up to 2.4A per port.Ultra-High Capacity With a capacity of 20100 mAh, Power Core+ can charge a typical phone 7 times without itself needing a recharge.Rapid Recharge In spite of its massive capacity, Power Core+ can be fully recharged in about 8 hours when combined with a 2.4A charger and the included USB to USB-C cable-up to 20% faster than a typical charger of similar capacity.Premium Components The Power Core+ 20100 is built with only the highest-grade materials and circuitry, and is given a premium aluminum-alloy finish that makes it both aesthetically pleasing and comfortable to hold. Multi Protect Safety SystemSurge protection, short circuit prevention and more advanced safety features keep you and your devices safe.