SUPER SLIM: Only 5.2mm thick and nearly the same size as your iPhone.100% EXTRA BATTERY LIFE AND MORE THAN 300 TIMES CYCLE OF FULL POWER.UNIQUE MAGNETISM DESIGN:Built-in metal plate can be absorbed by the magnet, it works great with any magnetic car mount, making it more convenient while driving.LIGHTNING PORT & SIMULTANEOUSLY CHARGING: Support the data transmission.Turn on/off chargingClick the power button once, it will turn on charging and LED lights. Double click the power button in succession, it will turn off charging and LED lights.The LED colors will show the remaining battery capacity. Red:1%~33%, Orange: 34%~66%, Green: 67%~100%.Charging tips: It should be recharged when the red LED flashes. When the green LED remains, it's better to charge for 20 minutes more to ensure the full power.First charge noticePlease keep on charging one more hour when it shows full power(green LED remains) to reach the maximum capacity of the battery. ChargingWhen you charge your iPhone with the smart battery case, the LED indicator flashes slowly and the green LED will remain till it's fully charged.Simultaneously ChargingWhen your iPhone with the smart battery case are being charged, it will charge your iPhone and the smart battery case simultaneously.Specifications:Battery Type: Pure lithium cobalt oxideInput: 5V/1.0A - 1.2AOutput: 5V/1.0A - 1.2ABattery Capacity: 4000mAh for 5.5〞Charging time(battery case only): 3.5-4h Working Temperature: -20°C~60°CWeight:99g(5.5")Please follow the user manual when you install or unload the smart battery case, parallel push your iPhone and make sure the inclination is less than 15° to avoid the fracture of the connector.Package:1x YILILK External Battery Charger Cover1x User Manual
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