PB-3000 Powerbank. Power banks are an indispensable item for on-the-go people. This 3000mAh Lithium Polymer power bank has an integrated USB/ Micro-USB cable and is compatible with most smartphones. Can be charged via the USB port of a laptop or computer. Packed in an Avenue gift box (size: 18.5 x 4.5 x 2.5cm).