Power Bank for mobile are always in demand. PowerBanks are easy to use. Power Bank for Laptops are also used. Portable Power Bank are always beneficial. It can also be called as Mobile Batter Bank. Power Bank ranges according to mAh. I personally use Power Bank of 5000 mAH. Universal Power Bank are also available. You need to charge Power Bank all time. Instructions for power bank are provided on the device box. The list of Power Banks for Mobile 2016 will give you benefits.