Samsung SCH-R270ZKAMTR - Manual (Page 11)

Getting Started 7
Removing the Battery
Caution! The display on your handset is made of glass or
acrylic and could break if your handset is dropped or
if it receives significant impact or excessive pressure,
which could void the warranty (For more information,
refer to “Standard Limited Warranty” on page 139.)
Do not use if screen is broken or cracked as this
could cause injury to you.
Important! You must unplug the adapter before removing the
battery from the phone during charging to avoid
damage.