Charge up to two devices simultaneously with blazing fast speed when on the go with the Anker PowerCore 20100mAh Ultra High Capacity Powerbank. This Anker portable charger is about 30 percent smaller and 27 percent lighter compared to other powerbanks with the same capacity. This 20100mAh powerbank makes sure that your phone stays charged for an entire week. This highly capacious powerbank boasts a very compact design, which allows you to take it with you wherever you go. The industry leading 4.8Amp output of this Anker battery charger makes sure that you can charge up to two devices simultaneously at the maximum speed for your devices. This highly capacious powerbank packs enough power that would keep your phone charged for days. With this Anker external battery powerbank, you can charge iPhone 6s seven times, Galaxy S6 five times, and iPad mini 4 two times. The MultiProtect system of this black colored powerbank incorporates various protective technologies to ensure the safety of you and your devices.