Nokia Lumia 822: Get Started9Chapter 3About the batteryYour phone has an internal, rechargeable battery. Use only Nokia ap-proved chargers designated for this phone. You can also use a compat-ible USB cable to charge your phone.You can set your phone to automatically save power when the batterycharge level is low. Select > and battery saver > Always turn onBattery Saver when battery is low.When your phone goes into battery saver mode, you may not be able tochange the settings of all apps.Authorized retail points may also offer a battery replacement service.Important:Only qualified personnel or an authorized service facilityshould replace the battery. Unauthorized battery replace-ment may invalidate your warranty.To avoid breaking the USB cable connector, be careful when connectingor disconnecting the charger cable.Antenna locationsAvoid touching the antenna area while the antenna is in use. Contactwith antennas affects the communication quality and may reduce bat-tery life due to higher power level during operation.The antenna areas are highlighted.Charge the batteryYour battery has been partially charged at the factory, but you mayneed to recharge it before you can switch on your phone for the fi rsttime.You do not need to charge the battery for a specific length of time, andyou can use the phone while it is charging.If your phone is off when you start to charge the phone, it automaticallyswitches on.Make sure you use a compatible USB charger to charge your phone.If the phone indicates a low charge , do the following: