Description: Portable External Battery For Mobile PhonesCE, ROHS, FCC certificatesUniversal applicabilityUSB output, can be applied to the smartphone, tablet, Galaxy Tablet, Mobile phone, MP3, MP4 and other equipmentRed light is state of charging, blue light is working, visible and intuitive and clear.Use 18650 samsung batteries cell, replaceable batteries, economical and practical.        Support synchronously charging and discharging function, mobile charging power supply and power supply Specifications: Capacity: 13000 mAhType: Samsung original batteryRecycling cycles: 500Size: 138 x 62 x 22 mmWeight: 350gInput: 5V 1.5AOutput: DC 5V / 0.5A ~ 2.1AFull Charging by 5V 2A Adapter need 9 hours; by 5V 1A Adapter need 13 hours.Charger is not includedSecurity Protection Design: - Short-circuit protection - Over current protection