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LiftMaster Dual Battery Backup Unit - 041-0406-000

The LiftMaster Dual Battery Backup Unit supplies continuous gate or door movement when main power is unavailable. Each unit holds two batteries wired for high-capacity standby support, maintaining full operational control through long outages. Designed for LiftMaster operators with integrated backup circuits, it connects directly to the system harness and restores full runtime after recharging.