The powerful built-in 10,000mAh battery of this case provides an extra 180% battery life to your precious iPhone, keeping it alive all day long! It’s equipped with Qi wireless charging so that you can charge your phone with the case on with a wireless charging pad. Your phone will be fully charged first and then the battery case. This case doesn’t get in the way of your phone's functions—no need to remove the case for data sync, plugging earphones or charging. With military standard protection, it absorbs more shock when the phone drops. It adds much weight and volume to the phone and is a reliable backup for travel and business.