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15 out of 5 Stars. 1 reviews
Hero image 0 of New 485LM Battery Backup for Garage Door Openers 3840 3850 8360 8550, 0 of 3
New 485LM Battery Backup for Garage Door Openers 3840 3850 8360 8550
Key item features
- Liftmaster 485LM is a 12V Replacement Battery. For use with various 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
- 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 replacement part.
Specs
- BrandUnbranded
- Model485LM
- Smart techN
- AccessoriesBattery Backup
Current price is USD$69.95
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About this item
Product details
Product Description
Liftmaster 485LM is a 12V Replacement Battery. For use with various 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 replacement part.
- Liftmaster 485LM is a 12V Replacement Battery. For use with various 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
- 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 replacement part.
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Specifications
Brand
Unbranded
Garage door opener system & supply type
DC-Powered Garage Door Openers
Compatibility
8500, 8500W, 8550W, WLED, 8360, & 8360W
Model
485LM
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
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Showing 1-2 of 2 reviews
Sep 16, 2025
John
5 out of 5 stars review
Verified Purchase
Garage Battery Back-up (smooth ordering process)
Shipping batteries to my location sometimes can be challenging. Great that the battery is available and a good price. Specs match perfect and my garage door back up battery is ready to go.
Helpful?52GT9I7LUYFB14461204879
May 28, 2025
Dean
1 out of 5 stars review
Verified Purchase
I never received my product I got ripped off from wal mart
Helpful?52GT9I7LUYFB14461204879
