Sure, here's a refined and simplified version of the title: Liftmaster 485LM Battery Backup

The 485LM is a 12V replacement battery designed for use with various LiftMaster DC motor garage door openers that feature backup battery systems. Before ordering, it is essential to check the manual or replacement parts diagram to ensure compatibility with your specific model.

The 485LM battery allows the garage door opener to continue operating as if the power is still on, ensuring that all safety and security features remain functional. It is compatible with the following LiftMaster models: 8500, 8500W, 8550W, WLED, 8360, and 8360W.

It is important to note that the addition of the 485LM battery on LiftMaster models LJ8900W and LJ8950W increases the maximum door weight from 650 lbs. to 850 lbs. This is a crucial consideration for users of these specific models.

The 485LM is a genuine LiftMaster replacement part, ensuring compatibility and reliable performance. Customers are advised to check the manual or replacement parts diagram before ordering to confirm that the 485LM is the appropriate battery for their garage door opener model.

Overall, the 485LM is a 12V replacement battery that allows LiftMaster garage door openers with backup battery systems to continue functioning even during power outages, maintaining the safety and security features that users expect. Its compatibility with a range of LiftMaster models and the increased maximum door weight on select models make it a valuable accessory for homeowners with LiftMaster garage door openers.

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