American Power Conversion APC Mobile Power Pack M12USWH - For Smartphone, Tablet PC, USB Device, UPS - Lithium Ion (Li-Ion) - 11400 mAh - 2.40 A - 5 V DC Output - 5 V DC Input - 3 M12USWH

Charge USB Devices Charge devices using the original USB cable that comes with the unit, or another USB chargingcable.Connect the mobile power pack with the device to be charged and press the POWER button for about 1 second Charge the Power Pack Use the included charging cable to connect the USB output port of a USB charger or PC to the micro-USB input port on the power pack. (Note: some PCs in sleep mode do no provide output power to the USB port) LED Status IndicatorsTo check the remaining battery charge of this device in standby mode, press the POWER button for about 1 second. The battery capacity display will display how much battery power is remaining