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Model 3850 DC Motor Belt Drive w/Integrated Battery Backup

Always charged and ready, The 3850 provides the highest level of safety and convenience imaginable. Plus, it's possibly the quietest system ever created. The powerful 12V DC motor features a belt drive system that provides ultra-quiet operation, along with smooth start and smooth stop to reduce the noise of the garage door as it opens and closes. Perfect for homes with a room above the garage.

  • Features
  • Safety Features
  • Included Accessories
  • Optional Accessories
  • Ultra-quiet DC motor with belt drive system provides smooth start and stop operation for less wear and tear

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  • Enclosed gear case - provides continuous lubrication and protection for longer life and smooth operation

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  • Integrated EverCharge Battery Backup allows you to operate your garage door opener for 40 full cycles within a 24-hour period if your power is down

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  • Alerts you when in use - an audible signal tells you when the battery backup system is operating

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  • Delivers 200 watts of light to fully illuminate your garage

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  • Non-yellowing hinged light lens for easy bulb replacement

    • -Lifetime warranty on motor and drive belt
    -5 year parts warranty
    -1 year on EverChargeTM Battery Backup System


  • Includes The Protector System® - projects an invisible light beam across the garage door opening and automatically reverses the door if anything interrupts the beam while door is going down

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  • Equipped with PosiLockTM - stops intruders by securely locking the garage door when it is down

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  • Manual release in case of power failure

Premium motion-detecting control panel.
Turns garage door opener lights on automatically when you enter a dark garage...hands free!
Two (2) attractive 3-button burled walnut remote control with Anti-Burglary technology

398LM Wall Control Panel

The Smart Control PanelTM displays time, inside garage temperature and important system status messages, making it easier to maintain your system.

-Soft Glow Blue LED Backlite Screen

-Motion Detector

-Turn lights on/off from panel

-Smart control panel for easy remote programing

-Locks out all outside remote control signals while you're away

902LM / 903LM Wall Control Panel

This 3-Door (903LM) or 2-Door (902LM) Multi-Function Control Panel offers you one control 2 or 3 garage doors. By combining the controls into one wall panel, you get a neat, compact appearance.

-Turns opener lights on/off from inside the garage

-Locks out all outside remote control radio signals while you're away

-Includes an adjustable light timer

-Large door control pushbuttons for added convenience

377LM Keyless Entry

The 377LM Wireless Keyless Entry System features a one-button-to-close feature, making it easier than ever to close your garage door.

-Open/close your garage door without a remote or keys

-Completely wireless

-Bright illumination backlighting

-Temporary password option enables friends or service people to enter your house without giving them your personal code

373P Premium Remote Control

Never fumble in the dark for your garage door remote control again. The new LiftMaster® Premium Remote Control (373P) is the only remote control that automatically lights up as you bring your hand nearby, so you'll always know exactly which button to press, even in the dark.

-Sleek and stylish, leather-like grip

-Motion-detecting feature streams brilliant blue light from the push-button windows

-Can control up to three garage doors or gates

374LM 4-Button Remote Control

Open doors and gates your way with this 4-Button Remote (374LM). It can operate up to four garage doors and/or turn your garage door opener lights on/off.

370LM Keychain Remote Control

Open doors and gates your way with this Mini 3-Button Remote (370LM). A miniature version of our 3-button remote control...and just as powerful.

-Ideal for your pocket, purse or a key chain

-Operates up to three garage doors and/or turns your garage door opener lights on/off

975LM Laser Parking

This innovative new accessory is designed to help you park in the right spot, every time

-Simple installation

-Works automatically - the red dot from the laser turns on automatically, letting you know exactly where to stop

-Up to two laser parking accessories will work with each garage door opener

915LM Monitor

Tells you if your garage door is open or closed from any room in your home

-Works with any garage door

-Monitors up to 4 garage doors (with additional sensors - 916LM)

-When light flashes red, door is open

-Fast, easy installation; no tools needed

990LM Surge Protector

Safely protects the entire garage door opener system, including the AC power line, control panel and The Protector System® safety sensors

-Made to withstand most power surges and lightning strikes

-For use with LiftMaster® garage door openers from 1994 to present