Shopping Cart

Your cart is empty.

Your cart is empty.

Liftmaster 485LM 4228 Replacement Battery Back-Up for 8500, 8500W, 8550W, WLED, 8360, & 8360W

5.0 (5) Write Review
Free shipping on orders over $29.99

$53.95

$ 26 .99 $26.99

In Stock

About this item

  • 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.


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.


Jean C.
Reviewed in the United States on February 15, 2025
Replacement fit perfect.
Murry
Reviewed in the United States on February 13, 2025
This is same brand as opener easy to install and takes about 24 hours to fully charge
Lectiophile
Reviewed in the United States on February 12, 2025
Easy to install.
daniel frack
Reviewed in the United States on January 31, 2025
Good quality one product
David C
Reviewed in the United States on December 28, 2024
Easy to install, and solves the problem of the unit beeping because of a low battery.