8Battery CapacityYour Omnia II is powered by a rechargeable standard Li-ionbattery. There is also an internal backup battery that saves allphone settings if the regular battery is discharged. The internalbattery maintains data for approximately four hours. This internalbackup battery needs an initial charge of 24 hours.Perform ActiveSync operations or use a backup utility frequentlyto avoid losing any information in case the battery is fullydischarged. For more information see “ActiveSync” on page 109.Note: Long backlight settings, simultaneous use of Wi-Fi and Bluetooth,searching for service, vibrate mode and browser use affect thebattery’s talk and standby times.For more information about Battery and External power settings, see“General Settings” on page 140.Battery IndicatorThe battery indicator in the upper-right corner of the displayindicates battery charge level. Four bars indicate a full charge,while an empty icon indicates an almost-empty battery.Two to three minutes before the battery becomes too low tooperate, a blinking empty battery icon appears and a tonesounds. If you continue to operate the phone without charging, itwill shut down.Checking Battery ChargeKeeping track of the battery’s charge is important. If the batterylevel becomes too low, your phone automatically shuts down andyou could lose important data. To quickly check your battery charge level, tap the Batteryindicator on the Title Bar, then tap the Charging iconto display the Battery Power settings.Use of Non-Supported Battery or AccessoriesOnly use Samsung-approved charging devices and batteries.Samsung accessories are designed to maximize battery life.Using other accessories may invalidate your warranty and maycause damage.Samsung handsets do not support the use of a non-supportedbattery. When using a non-supported battery, you will hear aseries of beeps and you will see a warning message thatindicates “NON-SUPPORTED BATTERY. SEE USER MANUAL.” If youreceive this warning, battery charging has been disabled.Samsung charging accessories (i.e. wall charger, and cigarettelighter adapter) will only charge a Samsung approved battery.Important!: When using a non-supported battery the handset can only beused for the duration of the life of the battery and cannot berecharged.