A RAZR is a flip style cell phone manufactured by Motorola. Located on the backside of the cellphone is a removable battery door, or battery cover. In order to access the battery, you must first remove the battery door.
Press the battery cover release button, located just above the battery cover.
Rotate the battery cover upward and then slide it upward, toward the top of the cell phone, to remove it.
Replace the battery cover by sliding the bottom of the battery cover into the slot below the battery housing unit. Press the cover downward to secure in place.