The slim, lightweight body weighs just 227g, so you can carry it around effortlessly and never worry about running out of power. 5W charging power for electronic devices and supports two-way fast charging, reducing power bank charging time to just 4. (Image source: Xiaomi - edited) Xiaomi's power bank lineup has seen a new addition, and it comes with a built-in USB-C cable and a screen. The rated capacity is 10,000 mAh, and this affordable portable charger from. . Uses item details. 5W Super Fast Charging Portable Power Bank, 10000mAh/20000mAh, 20W PD USB Type-C Universal Charger, Rechargeable Lithium Polymer Battery, Compatible with iPhone/Xiaomi/Samsung Phones. Whether you're a frequent traveler, remote worker, student, or tech enthusiast, having a dependable portable charger can be a game-changer.