elebase galaxy s8 plus battery case,5500mah portable external backup charging case,rechargeable impact resistant extended power charger for samsung galaxy s8 plus(not galaxy s8)(black) elebase 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.