Sabrent 2400mAh MFI Apple Certified Premium Rechargeable Extended Battery Case for iPhone 5s, 5 (PB-IPH5)

Description:

Double your iPhone's short-lived battery and go for more than a full day away from an outlet. When you do need to plug in, simply connect the included USB cable to a charging port to simultaneously charge both internal and external batteries. And, with full MFI Apple certification of the Lightning connector, no need to worry about incompatibility or harming your phone.