... power bank 1,capacity:9000mAh 2,18650 (Samsung) 3,Output voltage: DC5.5V 4, ... power ] features: Cel l type: polymer lithium-ion battery (BAK)Capacity: 9000mAhInput voltage: DC5.0 ~ 6.0VOutput ... using new battery chip, and real standard capacity noted, and optimum volume capacity ratio.3) with four LED indicator ... s requirementsDelivery time : 15days 9000mAh battery for power bank external battery pack