OtterBox Resurgence Power/Battery&nbsp;Case for Apple iPhone 6/6s - Retail Packaging - BLACK This case is compatible with BOTH iPhone 6 and iPhone 6s. 2,600 mAh battery doubles the iPhone 6/6s battery life. AUTO STOP charge feature saves power for later. LED status displays the power status of the case in 25% increments. Mil-spec rating delivering drop protection. Installation video visit https://www.youtube.com/watch?v=97tX18Zmr8Q . Please refer instructional Video which is under the Image Section before use. May not be compatible with 30-pin to Lightning Adapters or non-Apple branded USB to Lightning cables. In case of any queries kindly call Customer Service Team at 855-688-7269