Sprint Nextel MM-A800 - Manual (Page 40)

26 Section 2A: Your Sprint PCS Phone: The Basics
Installing the Battery
To install the Li-Ion battery:
1. To install, insert the battery into the top of the
opening at a 45-degree angle and gently press down
until the battery snaps into place.
2. Line up the tabs and slide the cover until it snaps into
place.