Liftmaster Battery Backup Replacement 485LM for Garage Door Models 3850, 8360, and 8550

GarageDoorProject is proud to celebrate 19 years of online garage door and operator parts sales. As a family-owned and operated business with two shipping locations in CT and TX, we take pride in our industry knowledge and ability to provide professional, field-tested products to DIY customers.

Our owner's 25-year experience in the industry led him to identify a need for a reliable source of OEM parts from American vendors. Driven by this passion, he developed our online sales platform to ensure customers have access to the very best quality garage door and operator components.

What sets our products apart is the fact that we source them directly from our close-knit network of US vendors. This allows us to authenticate the origin and production dates of every item, guaranteeing that customers receive only new, OEM parts – never overstock or outdated products.

Our industry expertise and true field installation experience enable us to provide comprehensive customer support. We are available to answer questions and assist with any installation issues that may arise, ensuring the success of our customers' DIY projects.

One of our exclusive offerings is the GarageDoorProject 485LM battery backup for Liftmaster garage door openers. This 100% OEM, US-shipped replacement battery is compatible with a wide range of Liftmaster, Chamberlain, Sears, Craftsman, and other 12V garage door operator systems.

Replacing a garage door opener battery is a simple DIY task, typically needed every one to two years. Our 485LM battery comes with easy-to-follow instructions, and all the tools required – gloves, safety eyewear, and a screwdriver – are readily available. Once installed, the fully charged battery can provide up to 20 open and close cycles during a power outage.

GarageDoorProject is committed to providing top-quality, reliable products backed by exceptional customer support. Our exclusive 485LM battery backup is just one example of how we strive to meet the needs of DIY garage door enthusiasts. With new production dates, 100% OEM parts, and direct US distribution, customers can trust that they are receiving the best possible solution for their garage door operator needs.

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