Elebase Galaxy S7 Battery Case,4700mAh Portable External Backup Charging Pack,Rechargeable Impact Resistant Extended Power Charger Case Compatible Samsung Galaxy S7(Not for Galaxy S7 Edge) (Black) EXTRA BATTERY CAPACITY  --- The 4700 mAh battery case extends the battery life of your Galaxy S7 for hours with more power to talk,surf and send.It delivers more than 105% extra battery capacity when you need an extra boost to make it through the day CHARGE WITH CONFIDENCE  --- Integrated circuit design with intelligent power IC protects against over-heating,over-charging,and short circuit even under extreme operating conditions,which can protect your phone from damages. USER-FRIENDLY DESIGN  --- The integrated power switch located on the back of the case allows you to put the battery case in standby mode or energize when you need it the most.Smart LED battery level indicator shows how much power is left,and puts you in complete control of when to use the battery case for charging. HIGH LEVEL PROTECTION  --- This hard phone shell provides your phone with the utmost protection against drops,scratches,and bumps even when not charging.Crafted to the specific dimensions of Galaxy S7,you can easily slides the phone in and out without squeezing or jamming. WARRANTY  --- Please note that our Galaxy S7 Battery Case comes with a worry-free 12-months warranty.We always strive to offer the best customer service and please don't hesitate to reach out if there is anything we can help you with. Protective Battery Case for Samsung Galaxy S7 (Black) * 1 User Manual * 1 Battery Capacity - 4700 mAh Material - Lithium-ion Polymer Input - 5V/1.5A Output - 5V/1.8A Case recharging time: 3 ~ 4 hours Case Dimension: 5.78 * 2.93 * 0.75 inches Weight: 3.8 oz Slide your Galaxy S7 all the way into the bottom section of the case and make sure the cases connector is fully inserted into the phone. Once your phone is safely installed in the case, press the LED status button for about two seconds to charge it.