LG KF750 User Manual page 198

Installing the USIM and battery
4 Install the battery
Insert the top of the battery first
into the top edge of the battery
compartment. Ensure that the
battery contacts align with the
terminals on the phone. Press down
the bottom of the battery until it
clips into place.
8 LG KF750 | User Guide
5 Charging your phone
Slide back the cover of the charger
socket on the side of your KF750.
Insert the charger and plug into
a mains electricity socket. Your
KF750 will need to be charged until
a message reading "Battery full"
appears on screen.