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*Price and Stocks may change without prior notice
*Packaging of actual item may differ from photo shown
- Electrical items MAY be 110 volts.
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About Liftmaster 485LM OEM Battery Backup
Easy day- battery replacement instructions 1. Disconnect power to opener. 2. Using a Philips head screwdriver, remove the battery cover on the motor unit. 3. Remove old battery and discard. 4. Partially insert new battery into motor unit with terminals facing out. 5. Connect red (+) and black (-) wires from motor unit to corresponding terminals on battery. 6. Replace battery cover. 7. Reconnect power.
