External auxiliary battery of 4.000 mAh, made from recycled aluminum, with almost infinite recycling possibilities, without losing its original properties and consuming less energy in the process. With 2 USB outputs and dual Type C input and output connection. LED charging status indicators and Type-C charging cable included. The capacities shown on all our external auxiliary batteries are real, incorporating all grade A and non-recycled batteries, with a useful life of at least 500 charge cycles and in compliance with CE regulations. In addition, they are manufactured in accordance with RoHS standards and in compliance with the following safety requirements. 4000 mAh. 2 USB outputs. Type-C Input and Output Recycled Aluminum USB-C Input/Output: 5V DC 2.4V USB outputs: 5V DC 2.4A 4000 mAh. 2 USB outputs. Type C Inlet and Outlet Aluminum, metal alloy.