The UNU DX battery case has a 3000mAh battery that can give you 125% of additional power for your iPhone 6.
Protect your phone from normal wear and tear thanks to the added protection this case offers. Plus, you'll get a bonus screen protector for your phone (more added protection - sweet)!. And, you don't need to take your phone out to charge it; charge the case via the included microUSB cable. Still not sure? You should know this case is Apple-certified to work with all of your phone's features.