... other electronics3. CE, RoHS, FCC With 2 USB charging port for this Backup power/battery, LCD power display Specifications: 1.Input Voltage: 5 ... Output Current: 800mA, 1500mA (Max) 4.Capacity: 6600mAh 5.Output Voltage: 5V-5.5V cell phone charger, portable charger, wireless charger, ... backup power, backup battery for iphone 6600mAH multiple mobile phone battery charger with 2 USB charging port, SLS-P21