IT is very portable and also safe a money for a case. 1. Get a great power in design load, protect & 2 in 1, powerful battery case. This battery box could fit fit Galaxy S8 The [5000 MAH] Li polymer rechargeable battery ill provide 80% battery life for your Samsung Galaxy S8, which is equivalent to add 30 + hours of talk time or 25 hours + time to surf the web. 2. All the days of power source, is his right arm of the telephone: You can charge your cell phone at any place by the push of a button. Especially outdoors hiking shoes, climbing, camping & long trip. The load faster and safer with our battery box when you click your galaxy S8. Precise aliases for easy access to all the buttons and ports. And removal. 3. Easy to use, design user friendly: Hold on / off button on the elegant Galaxy S8 power plus case to turn on and off the case when you need the extra juice. Put your phone in the case of the battery, press the button 2 seconds to start loading. When charging, the LED indicators all lighting, press button 2 seconds to stop the load. 4. Change the battery box Connect the connector of the type C to USB cable with battery box, after connecting the cable to the power adapter to charge the battery box, when charging, the LED indicators are illumination. 1 x External Backup Battery Case Power Charger For samsung galaxy s8 s8plus Compatibility: for Samsung Galaxy S8 Plus The material of the product: ABS + PC. The nominal capacity: 5000-5500 MAH Thickness: 14.6mm (0.57 inch): type of battery, Li polymer. Entry: 5v1. 8A. Output: 5v1. 8A. Recharge time: 3 - 4 hours.