Appendixnüvifone A50 Owner’s Manual 113Battery InformationThe icon in the status bar indicatesthe status of the internal battery. Toincrease the accuracy of the batterygauge, fully discharge the battery andthen fully charge it. Do not unplug thedevice until it is totally charged.Maximising the Battery Life• From the application tray, touchSettings > Display > Brightnessto turn down the backlight.• From the application tray, touchSettings > Display > ScreenTimeout to reduce the timeoutlength.• Do not leave your device in directsunlight.• Avoid prolonged exposure toexcessive heat.Replacing the Battery CAUTIOnDo not use a sharp object to remove thebattery. A sharp object may puncturethe battery, which may present a riskof fire, chemical burn, electrolyte leakand/or injury.Only use the correct battery type.Using an incorrect battery may presenta risk of explosion.NoticeTo avoid losing your customisedsettings, replace the battery withinfive minutes of removing it from yourdevice.Contact your local waste disposaldepartment for information on properlydisposing of the battery and the device.