Samsung SGH-I777ZKAATT - Manual (Page 13)

Getting Started 8
Installing the Back Cover
1. Place the battery cover onto the back of the phone (1) and
press down (2).
2. Press along the edge of the back cover (3) until you have a
secure seal.
Note: Make sure the battery is properly installed before switching on the
phone.
Charging a Battery
Your device is powered by a rechargeable Li-ion battery. The
Travel Charger that is used to charge the battery, is included with
your device. Use only Samsung-approved batteries and chargers.
Note: Long backlight settings, searching for service, vibrate mode, web
browser use, and other variables may reduce the battery’s talk and
standby times.