ie8 fix

Rugged battery extender iPhone 4/4S

Mophie gets tough with Juice Pack Pro iPhone 4/4S case

Think of Mophie's new Juice Pack Pro as an Otterbox case that's packing a 2,500 mAh battery that more than doubles the battery life of your iPhone 4 or 4S.

Mophie would probably argue that the Juice Pack Pro is actually tougher than an Otterbox case. It's touting its first ruggedized battery pack case as exceeding military specification MIL-STD 810G, which is pretty tough.

That said, the case is water-resistant but not totally waterproof (it can't go underwater). It has a built-in screen protector and comes with a rotating belt clip. According to Mophie, that … Read more