Custom Power Bank, Winnemac Sleek Metallic Slim 3000mAh Power Bank - UL Certified, Our Winnemac Sleek Metallic Slim 3000mAh Power Bank is made with a high-quality aluminum casing that houses a 3000mAh UL certified battery with a large imprint area, it's perfect for you to display your company logo for marketing or for promotional gifts. Input: DC5V~800mA . Output: DC 5V~1A . Capacity: 3000mAh . Charging Time: 4-5 hours . Material: High quality aluminum casing with ABS components. ... #PWB114LA $10.95/each.