OtterBox Resurgence Power/Battery&nbsp;Case for Apple iPhone 5s - Retail Packaging - BLACK (BLACK/BLACK) This iPhone 5 battery case delivers drop protection with a purpose 2,000 mAh Battery doubles the battery capacity of your phone Auto-Stop Charge stops charging when phone is full, saving power for later Charge Status LED displays the case power status in 25% increments Slim and sleek battery case for iPhone 5s and iPhone 5