Samsung SCHU340 User Manual page 19

Install the Battery
Slide the battery cover down and lift up to remove it..
1.
Insert the top end of the battery in the direction of the arrow printed on the
2.
battery into the phone housing. The gold contacts on the top of the battery
should match up with those on the phone.
Push the bottom end of the battery down until it snaps into place.
3.
Slide the battery cover up until it snaps into place.
4.
Section 2: Understanding Your Phone 16