- (A) Open the battery door with a screwdriver.
 - If used batteries are present, remove these batteries from the unit by pulling up on one end of each battery. DO NOT remove or install batteries using sharp or metal tools.
 - (B) Install new batteries as shown in the polarity diagram (+/-) inside the battery compartment.
 - (C) Replace battery door securely.
 - Check your local laws and regulations for correct recycling and/or battery disposal.
 
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