The LiftMaster 485LM/41A6351-1 backup Evercharge battery for garage door openers will allow your opener to continue working during a power outage. This LiftMaster backup battery is compatible with all battery backup units with slide-in batteries. It also works with Sears and Home Depot brand Craftsman battery back-up systems. We carry a full line of new original-manufacturer LiftMaster garage door opener parts and accessories with discount prices on all lines.Product Highlights: