NEC MOBILEPRO 700 Quick Manual page 12

Inside the bay, locate the following:
The battery ribbon. Pull the ribbon gently so that it protrudes out of the bay.
The terminal notations (+ and –).
Put the AA batteries on the ribbon in the bay. Align the batteries so that the positive terminal (+) on the battery aligns
with the positive (+) notation in the bay.
Firmly press the batteries into the bay until they are secure.
Replace the Main battery bay cover.
Opening the battery bay cover
Locating the ribbon and terminal notations
Inserting the batteries