Contains a 20,000 mAh Internal Battery: The Powerstation 20K offers up to 4 full phone charges Charge Multiple Devices: Charge up to three devices thanks to the USB-C and USB-A ports. Powerstation 20K includes USB-C input/output + dual USB-A ports Versatile USB-C Port: Use the USB-C port to recharge the Powerstation in record time or use that same port to charge a device.LED Power Indicator: The mophie essentials Powerstation 20K has an LED power indicator, which lets you know how charged your Powerstation is The mophie essentials Powerstation 20K contains a 20,000 mAh internal battery that offers up to 4 full phone charge. The mophie essentials Powerstation 20K has an LED power indicator, which lets you know how charged your Powerstation is. Charge up to three devices simultaneously thanks to the USB-C input/output port and the dual USB-A port. Use the USB-C port to recharge the Powerstation in record time or use that same port to charge a device. Design LED indicators Battery level