Audiovox 5BCRCS Owner's Manual page 5

3. Remove the discharged battery, making note of the location of the + and -
contacts shown, and replace with a new type akaline 1.5 volt AAA Battery.
4. Making note of the location of the (+) and (-) contacts, insert a new AAA
battery alkaline 1.5 volt.
5. Replace battery cover being certain to close the battery case lock clip to
prevent accidential opening.