YISHDA Galaxy S9 Battery Case 4700mAh Portable Rechargeable Extended Backup Battery Charging Case for Samsung Galaxy S9 External Backup Battery Case Power Bank Charger Cover – Black [18 Month Warranty] Battery Case Specially designed for Samsung Galaxy S9 Smartphone: Product Type: A+ grade lithium ion polymer battery
Input Current: 5V 1800mA
Output Current: 5V 1800mA
Operating Temperature: 0 ℃ -45 ℃
Battery capacity:4700mAh
Storage / Transport Temperature: -20 ℃ ± 50 ℃
Cycle Life: ≥ 500 times
Charging time for battery case: about 4-6 hours
Charging time for Samsung Galaxy S9: about 3-4 hours
Product Weight: 115g (4.05oz)
Product Size: 18 * 7 * 1.5 (cm) How to charge the phone: 1. Take off the top cover of 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.
2. Press the ON/OFF switch at least 3 seconds to activated or stop the charging, see the mobile phone scree to identify the charging signal. How to charge the battery case: 1.Connect your USB charging cable(Not Included)to the battery case's USB input interface, and then connect the cable to a USB charger adapter.
2.Press the power button once to charge the phone and battery case simultaneously.phone will be charged first,after phone full charged,it will charge battery case. The lighting LED indicators show the battery percent as follows: One LED: 1%~ 25%; Two LED: 25% ~ 50%; Three LED:50%~75%; Four LED: 75%~100%. Package included: 1 * Battery Case for Samsung Galaxy S9 1 * User manual Kindly Note: 1. Please fully charging and discharging at least 1 times at the first use.
2. Please use the original charger that comes with the phone to charge the battery case. Generic or non-original chargers may cause the battery case to malfunction.