UIMI U8 15600 mAh power bank available for Rs. 1110 By Amit Singh on January 9, 2017 4 Comments Delhi based UIMI brand has their UIMI U8 power bank listed on Flipkart for Rs. 1,110. This power bank houses a 15,600 mAh battery and also includes a LED torch. U8 is available in Black and Gold color options.