Portable Rechargeable Battery For Mobile Phone 1.Type: polymer lithium ion batteries 2.Output:DC 5.3V/750mA Portable Rechargeable Battery For Mobile Phone1.Portable2.Type: polymer lithium ion batteries3.Output:DC 5.3V/750mA 4.capacity:2200mAh,3.7V 5.Size:73*50*23mm 6.colour:white