LiftMaster 475LM EverCharge battery back up system. Compatible with LiftMaster 2500, 3500, 3800 and 8500 models. Includes EverCharge battery back up system, hardware and instructions.
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LiftMaster 475LM EverCharge battery back up system. Compatible with LiftMaster 2500, 3500, 3800 and 8500 models. Includes EverCharge battery back up system, hardware and instructions.
