PNI PMR R18 Manual De Usuario página 5

Install/Remove the battery
To remove the battery from the radio, first loosen the clip that
secures the battery, then pull the battery down.
To reinstall the battery, push the battery into its slot, then
tighten the retaining clip.
Instal the belt clip
Using the screws included in the package, fix the belt clip on the
back of the radio.
Note: We recommend you to detach the belt clip before
removing the battery.
User manual - 5