Nokia Lumia 928: Get started9Chapter 4Antenna 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.About the batteryYour phone has an internal, non-removable, rechargeable battery. Useonly approved chargers designated for this phone. You can also use acompatible USB cable to charge your phone.You can set your phone to automatically save power when the batterycharge level is low.From the start screen, swipe left and tap Settings > battery saver> On .When your phone goes into battery saver mode, you may not be able tochange the settings of all apps.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 firsttime.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:1. Connect the USB cable to the power adapter.2. Connect the power adapter to an electrical outlet.3. Connect the small end of the USB cable to the Micro-USB ChargingPort on your phone.If the battery is completely discharged, it may take several minutes be-fore the charging indicator is displayed or before any calls can be made.