Battery Back-up (emergency)


In the event of a power outage, you can open and close your garage door in complete safety and security.

This battery may only be used with LiftMaster, Chamberlain or Mastercraft (Sears) brand door openers.
Battery Backup (residential) 475LM

Battery Backup
(residential) 475LM



 


The 485LM backup battery can be used with model 3850 door openers.
Battery Backup (residential) 485LM

Battery Backup
(residential) 485LM



 




 



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