Please Kindly Note:*. Please fully charging and discharging at least 1 times at the first use. *. 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. *. Long press the power button 3 seconds untill led lights on to power on and start charging. To stop charging,just long press power button 3 seconds again till the led light off. PRODUCT DESCRIPTION Product Type: A+ grade lithium ion polymer batteryInput Current: 5V 1800mAOutput Current: 5V 1800mAOperating Temperature: 0 ℃ -45 ℃Battery capacity:Storage / Transport Temperature: -20 ℃ ± 50 ℃Cycle Life: ≥ 500 timesCharging time for battery case: about 4-6 hoursCharging time for Xiaomi Mi 9: about 3-4 hoursProduct Weight: 120g (4.05oz)Product Size: 18 * 8 * 2(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: Red: 1%~ 25%; Blue: 25% ~ 50%; Green:50%~75%; White: 75%~100%.What's in the Box :1 * Battery Case for Xiaomi Mi 91 * User manual
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