Neptune 46-in-1 Multi Tool + LiftMaster 485LM Battery Backup (1 BATTERY + 1 TOOL)

Introducing the 485LM EverCharge Battery Backup System by LiftMaster, compatible with various models including the LiftMaster 3840, 3850, 8550, and 8360 garage door openers, as well as Chamberlain models WD962KEV and LW5000EVE. This integrated standby power system ensures seamless operation of your garage door opener during power outages, allowing uninterrupted access through your home's primary entry point.

Key Features: - Keeps your garage door opener functional as if powered normally. - Provides up to 72 hours of standby power in case of electrical failure.

The LiftMaster 485LM, also known as Chamberlain part number 4228, is 100% OEM with new production dates directly from the LiftMaster factory. It supports a range of garage door opener models: - 87504-267, 84501, 8155W, 87802, 84602, 8587WL, 8365W-267, 8160WB, 8160W, 8165W, 8164W, 8550, 3840, 8360, 3850, WD962KEV, LW5000EVE, 3840, 3850, 8550, and 8360.

This backup system ensures you can continue operating your garage door during power outages, providing peace of mind and convenience. It is compatible with Sears and Home Depot garage door battery backups, serving as a reliable replacement part.

Customer Satisfaction: We stand behind our products with a 30-day refund policy and are committed to providing excellent customer service. Please contact us directly for any support needs as Amazon does not handle returns of battery-related products. Our Neptune support team is ready to assist you.

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