Important safety and handling informationBattery Built-in rechargeable battery noticeDANGERDo not attempt to replace the internal rechargeable lithium ion battery. ContactLenovo Support for factory replacement.DANGERChargingCharge Lenovo Phone in the temperature range of 0°C(32 °F) -50°C(122°F).You can use any of the following charging methods to safelyrecharge the internal battery of Lenovo Phone:Charging method Display is on Display is offAC adapter Approved, but thebattery will chargeslowly.ApprovedA USB connectionbetween the dc-inconnector on LenovoPhone and a USBconnector of a personalcomputer or other devicethat complies with theUSB 2.0 standardsThis charging methodwill compensate thepower consumption.The battery willdischarge more slowlythan usual.Approved, but the batterywill charge slowly.NOTES:Display is on : Lenovo Phone onDisplay is off : Lenovo Phone off or in screen lock modeCharging devices might become warm during normal use. Ensure thatyou have adequate ventilation around the charging device. Unplug thecharging device if any of the following occurs: