Engadget Review

It was only a matter of time before Apple made its own battery case, right? Too bad its debut effort, the $99 Smart Battery Case, is a bit of a hard sell. It certainly works as advertised, and niceties like iOS integration and the ability to charge the phone and the case at the same time add to its appeal. Still, there's no shortage of less expensive alternatives with bigger batteries, so only Apple die-hards need apply.