<b> RUNSY 4700mAh Battery Case for Samsung Galaxy S9 <br><br> 1. Charge without removing the battery case. But you need to remove the battery case if you want to sync the phone to a computer. <br> 2. Wireless charging or Samsung Pay NOT supported. <br> 3. Charge the phone and battery case SIMULTANEOUSLY while plugged in. The battery case won’t automatically charge the phone when the phone battery runs low. Press the power button on the back of the battery case for 3 seconds to start or stop charging. <br> <br> <br> <b>Specs:</b><br> Capacity: 4700mAh <br> Product dimension: 153*72*19.8mm <br> Net Weight: 124.7g <br> <br> <br> <b>What’s in the box:</b><br> 1 x RUNSY 4700mAh Battery Case for Samsung Galaxy S9 <br> 1 x User Manual <br> <br> <br> <b>Note:</b><br> 1. Charge the battery case fully and deplete the power of the battery case completely at the first use. <br> 2. Use the original charger and cable that come with the phone to charge the battery case as generic or non-original chargers and cables usually cause the battery case to malfunction. <br> <br> <br>