54. With the battery in position on the phone, place the coverback on the handset and slide it in until it clicks.Charging a BatteryYour phone is powered by a rechargeable Li-ion battery. Use thetravel adaptor to charge the battery, and use only Samsungapproved batteries and chargers.Note: You must fully charge the battery before using your phone for the firsttime. A fully discharged battery requires up to 4 hours of charge time.Note: For connection to an electrical supply not located in the U.S., you mustuse an adaptor of the proper configuration for the power outlet. Use ofthe wrong adaptor could damage your phone and void your warranty.1. Plug the connector of the travel adaptor into the jack onthe side of the phone.2. Plug the adaptor into a standard AC wall outlet. Whencharging is finished, unplug the adaptor from the poweroutlet.3. Remove the adaptor from the charger port.Note: You must unplug the adaptor before removing the battery from thephone during charging to avoid damage.Note: When the travel adaptor is plugged in, the charging indicator may notappear for a few minutes, however the battery is charging properly.Low Battery IndicatorWhen the battery is weak and only a few minutes of talk timeremain, a warning tone sounds and the “Battery Low” messagerepeats at regular intervals on the display. The backlight turns offto conserve the remaining battery power.When the battery level becomes too low, the phone automaticallyturns off.Powering On or Off the Phone1. Open the phone. Press and hold the key or theuntil the phone power-on screen displays.