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series. As mobile devices demand more power, portable charging tech has shrunk dramatically while increasing output capacity. Specification Technical Detail 20,000 mAh High-Density Lithium Polymer Power Output 22.5W Super Fast Charging (Two-Way PD + QC 3.0) Circuit Safety 12-Layer advanced chipset protection Dimensions Ultra-compact pocket size with a soft-touch matte finish Compliance Flight-approved for carry-on travel The primary advantage of the URBN Nano Power Bank