Description
LIFTMASTER Garage Door Openers 475LM EverCharge Battery Backup System
The LIFTMASTER Garage Door Openers 475LM EverCharge Battery Backup System is very simple to install and can be used with the LiftMaster 3800 Jackshaft Garage Door Opener and Estate Series Models 2500, 2500B, 2500D, 3500, 8500. This reliable backup system is always charged and ready and willpower your garage door to open and close up to 20 full cycles when the power goes out. A bright LED lights let you know that the system is working or when the batteries need to be replaced.
