... 5V 3,Charging time:about 1-2 hours4,Output power:charging from AC,USB connector on computer.5, Cycle ... lithium batteries, long lifespan, and more safety.3.Auto power off, make better use of battery energy.4.Unique ... device anywhere and anytime.7.Prevent wear design,more anti-resistant and durable Paking list:1,machine:1pc, 2 ... 1pc OEM is welcome.Welcome to our factory!! for ipad4 power bank from factory