Liftmaster 41B591 – 2PK Battery Replacement for BBU Battery Back-Up Unit
Liftmaster 41B591 – Battery Replacement for BBU 2 – 475LM for Battery Back-Up Unit Liftmaster 41B591 – Battery Replacement for BBU 2 – 475LM Battery Back-Up UnitLiftmaster 41B591 – Battery Replacement for BBU. Liftmaster & Chamberlain Replacement Garage Door Opener Parts. This is a Battery Backup Replacement Kit. For use with various LiftMaster® and Chamberlain® Garage Door Openers; featuring a battery backup system (BBU). Complete kit includes: (2) 12V, 4.5AH Batteries. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility.Genuine LiftMaster® replacement part. Also known as:41B591, 012381415915, 9000001 Payments & Returns Policy