Samsung SCH-U380HKAVZW - Manual (Page 10)

Getting Started 5
Battery
Your phone is powered by a rechargeable, standard Li-Ion
battery, and comes with a wall charger for charging.
Note: The battery comes partially charged. You must fully charge the battery
before using your phone for the first time. A fully discharged battery
requires up to 4 hours of charge time.
After the first charge, you can use the phone while charging.
Warning!: Use only Samsung-approved charging devices and batteries.
Samsung accessories are designed to maximize battery life. Using
other accessories may invalidate your warranty and may cause
damage.
Battery Indicator
The battery icon in the upper-right corner of the display shows
battery power level, with four bars
indicating a full charge.
Two to three minutes before the battery becomes too low to
operate, a blinking empty battery icon appears and a tone
sounds. If you continue to operate the phone without charging, it
will shut down.
Battery Cover
Your phone has a removable battery cover, covering the battery
and a tab for attaching a strap.
Removing the Cover
ᮣ Grasp the phone with both hands. Pull up on the slot provided,
while lifting the cover up and off the phone.
Installing the Cover
ᮣ Align the cover and press it firmly into place, being sure it
snaps into place at the corners.