... 4,warranty:1 year portable charger/power bank for iPhone, ipad,travel mobile charger, USB mobile ... power ] features: Cel l type: polymer lithium-ion battery (BAK)Capacity: 9000mAhInput voltage: DC5.0 ~ 6.0VOutput ... comparable to Apple products;2) using new battery chip, and real standard capacity noted, and ... s requirementsDelivery time : 15days 9000mAh battery for power bank external battery pack