Remove front panel by removing screws with a Phillips screwdriver.
Disconnect the batteries.
Remove and dispose of old batteries.
Note: The batteries are recyclable. For information on battery recycling, you may check with a battery recycler in your area or contact Battery Solutions, Inc., (7266 Kensington Road, Brighton, Michigan 48116) by phoning 1 (800) 852-8127 or visiting their website at: www.batteryrecycling.com.
Add new batteries.
Connect batteries by attaching connectors (black-to-black and red-to-red).
Re-attach front panel using screws and a Phillips screwdriver.