The battery storage compartment is located on the back of the controller. 
 
 To install batteries: 
 
 
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  Press down on release button and slide down battery cover. (If used batteries are present, remove. Do not use sharp or metal tools).
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  Install new batteries as shown in the polarity diagram (+/-) inside the battery compartment.
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  Replace battery door securely.
  Check your local laws and regulations for correct recycling and/or battery disposal. 
 
             
        
      