LiftMaster 485LM Battery Backup for Garage Door Openers 3840 3850 8360 8550

485LM is a 12V Replacement Battery. For use with various LiftMaster® DC Motor Garage Door Openers featuring Backup Battery Systems. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility.

• Operates the Garage Door Opener as if the power was still on, plus all safety and security features will be operational

• 12V replacement battery is used in the following models: 8500, 8500W, 8550W, WLED, 8360, & 8360W

IMPORTANT NOTE: Max door weight with battery increases from 650 lbs. to 850 lbs. with the addition of the 485LM Battery on LiftMaster® Models LJ8900W and LJ8950W.

Genuine LiftMaster® replacement part.

Product Literature:

• LiftMaster 485LM Replacement Instructions