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Battery Case for S21 Ultra, 6.8 inches, Black ColorNote: This power case not support wireless charging or fast charging functions Specifications: Compatible For Samsung Galaxy S21ultra 6.8 inches Battery Type: Lithium Polymer Battery Capacity: 4700mAh Output:5V/1.8A Input:5V/1.8A Standby Time: Up to 200h Talk Time: Up to 10h Internet Surfing Time: Up to 10h Audio Play Time: Up to 40h Video Play Time: Up to 10h Weight: 159g Charging cable:Use your original Samsung charging cable(Don't include the cable ) How to use it? 1.Charge the power case: Plug your original data cable in the charging port of the case, then connect to USB adapter or computer USB port. When charging the LED will be lighten. The LED will blink and indicate how full it is when charging. 2.Charge Samsung Galaxy S21 ultra: Take the battery case and slide your mobile phone into it. Make sure your mobile phone is well connected to the dock on the battery case. press the Back of button to start or stop the charging. see the Galaxy S21ultra screen to identify the charging signal. 3. Show battery status Press the power button on the back, the LED will be lighten immediately, show the power status LED Indicator: 4 LED battery level indicator - (0--25% - 50% - 75% - 100%) of capacity . Note: 1.This item is for the Samsung Galaxy S21ultra only. 2.Charging Cable are NOT included.