Samsung Galaxy S9 Battery Case, Ultra Slim 4700mAh Rechargeable Portable External Battery Charger Pack Extended Power Bank Backup Charging Protective Case Cover for Samsung Galaxy S9 2018 (Black) [ Battery Cover for Samsung Galaxy S9 ] Battery case for Samsung Galaxy S9 smartphone, built in 4700mAh rechargeable Li-polymer battery power bank, offers extra battery life for your phone effectively, slim and durable, easy access to all the phone's button, provide longer battery life. [2 in 1 Charger and Protection] Galaxy S9 power pack case with high capacity extra battery power, durable material, protect your phone from scratch, dirt, and other damage to wear, convenient for daliy use and provide battery power for you during emergencies [Slim and Full of Protection] Battery charger phone case for Samsung S9, Slim Fit the S9 perfectly, offer maximum protection on the phone, full protection backcover phone case for Samsung S9, and you can charger your phone and case at the same time, double your phone battery life without increasing its size [100% Safety and LED Indicators] Samsung Galaxy S9 Battery charger pack case, 100% safe with internal circuit protection against overheating, overload and short circuit. The LED indicators let you know exactly how much charge is available and the power switch turns on / off the case. [Moonmini Product Warranty] This S9 Samsung battery case has one years warranty period after purchase. If you have any problems after purchasing, please do not hesitate to contact us. We guarantee that we will help you solve the problem and give you a different shopping experience