Motorola APX 1000 Basic Service Manual page 237

Disassembly/Reassembly Procedures: Radio Reassembly 7-29
7.6.11 Reassemble the Battery (33)
1. With the radio turned off, slide up the battery into the radio's frame until the bottom latch clicks
into place as shown in Figure 7-43.
Figure 7-43. Attaching Battery – Slide into Position