External auxiliary battery of 20,000 mAh made of wheat straw. 2 USB outputs, with dual Type C input/output connection and LED charge status indicator. USB C Input/Output: 5-12V DC 3-1.5V, PD18WUSB Outputs: 5-12V DC 4.5-1.5A, 22.5WWheat straw promotes the use of natural raw materials, thus reducing pollutant emissions.The capacities shown in all our external auxiliary batteries are real, all of them incorporating non-recycled, grade A batteries, with a service life of at least 500 charging cycles, and complying with CE regulations. In addition, they are manufactured according RoHS standards, and in compliance with the following safety requirements: Power bank overcharge protection system. Complete discharge protection system, which increases the durability of the power bank. Blocking system to prevent short circuits. Constant charging transfer system, in accordance with the capacity of the target device.