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When replacing the battery pack, please follow the same procedure. V__J WARNING TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. Clean the battery charging contacts in handset and base unit regularly with a dry cloth so that sufficient contact is made. (PRECAUTIONS ) • Before initial use, charge the battery pack in the battery compartment of the handset for approximately 12 to 16 hours wit