With a full body coverage and built-in battery module,this protective battery case does not only offer a comprehensive protection to your Samsung Galaxy S8 PLUS,it could also recharge the phone when it runs out of juice at the end of a busy day.Enjoy our safe,reliable product that help you stay powerful. <br><br> <b>Note:</b> This battery case supports wired recharging only and to sync up your phone with a computer or laptop, you need to remove the entire case. <br><br> <b>Charging your phone using the case: </b> <br> 1. Slide your Galaxy S8 PLUS all the way into the bottom section of the case and make sure the case’s connector is fully inserted into the phone. <br> 2. Press the LED status button for about two seconds. <br><br> <b>Charging your battery case (Wired): </b> <br> Use the usb type c cable connect your case to the adapter included with your Galaxy S8 PLUS or another USB wall adapter,or to a computer's USB port. <br><br> <b>Check Remaining Battery Power</b><br> <b>User can check the remaining battery power by pressing the LED status button on the back once and then examining the color of LED indicators: </b> <br> 1. Gray - indicates 75%-100% power level<br> 2. Green - indicates 50%-75% power level<br> 3. Blue - indicates 25%-50% power level<br> 4. Red - indicates 1%-25% power level<br> 5. No LED lighting up indicates an immediate recharge is needed.<br><br> <b>Specification: </b><br> Capacity - 5500 mAh<br> Material - Lithium-ion Polymer<br> Input:5V/1.8A<br> Output:5V/1.8A<br> Case recharging time: About 4.5 hours<br> Dimension: 6.48 * 3.00 * 0.68 inches<br>Weight: 4.94 oz<br><br> <b>Box Content: </b><br> 1 * Protective Battery Case for Samsung Galaxy S8 PLUS<br> 1 * User Manual<br><br> <b>Warranty: </b> <br> This battery case come with a worry-free 12-month warranty, free to purchase our products now. Scroll up for more discount details.