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: 2600 mAhBattery Type : Samsung 18650Efficiency : 80%-85%Charging Time : 6-8 hoursStandby Time : 72hours-120hoursBattery Life Cycle : 550 timesweight : 70 g                  size : 91.5*25.5*25.5mm Input : USB5V1A Output : DC5V1AWorking Temperature : -25°C~55°CSecurity Protection Design: - Short-circuit protection - Over current protection