Chamberlain LiftMaster 485LM Replacement Battery

Description

• Allows you to still come & go through your garage door when the power goes out
• Lift master 485lm battery backup system – chamberlain part number 4228- 100% OEM
• New production dates- Lift Master factory supplied
• Also works with Sears and Home Depot garage door battery backups- replacement part
• Compatibility for all battery backup units with slide-in battery – 385/855 and new models