Portronics Jumbo 20000mAH Lithium Polymer Power Bank (White) 
 
Huge capacity: With the huge capacity of 20000mah, it has the potential to charge the average smartphone for at least 4-5 times, Not only smartphones, you can also charge your tablet, digital camera, game console etc
Output: It has two output ports to charge two devices simultaneously, The output 1 is capable to provide dc 5.0v - 2.4A and output 2 can provide the charge in three ways depending upon your device, dc 12v - 1.5A, dc 9v - 2A or dc 5v - 2.1A
Input: It has two input ports, Input 1 which has micro port can support dc 5v - 2A as well as dc 9v - 2A, Input 2 which has type-c port can also support dc 5v - 2A as well as dc 9v - 2A, You can charge the power bank with both inputs at the same time to make it charge fast but both inputs together will accept dc 5v - 3A
1 year warranty provided by the manufacturer from date of purchase