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Liftmaster  
 
3850 DC Motor Belt Drive with EverCharge® Standby Power System
 

Now when the power goes out, your garage door opener will still work. The LiftMaster® 3850 is the only 3/4 HPS®* professionally installed opener with a fully-integrated standby power system. It will operate the garage door opener for 40 cycles within a 24-hour period, and recharges automatically when the power comes back on; an audible signal tells you when the power is out and the EverCharge® Standby Power System is in use. The safety and security features will continue to operate as well, ensuring your family is protected in a power failure. The opener also features 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.

* horsepower strength with same lifting force specifications as 3/4 HP LiftMaster garage door openers

* Auto-force feature constantly monitors garage door system and adjusts forces to temperature fluctuations, floor height, and door track movement
* The Smart Garage Door Opener® lets you electronically program security codes from the Smart Control Panel® or the powerhead
* Enclosed gear case provides continuous lubrication and protection for longer life and smoother operation
* A 6-foot power cord makes connecting to a power source easier than ever
* Delivers 200 watts of light with adjustable light time delay
* Meets all UL325 requirements

SAFETY & SECURITY FEATURES

* The Protector System® safety sensors project an invisible light beam across the garage door opening and automatically reverse the door if anything interrupts the beam while the door is going down
* Sensing technology will stop the door from closing if contact is made with a person or object
* Opener lights turns on automatically when The Protector System's infrared beam is broken
* Security+® rolling code technology assures a new code is sent every time the remote control is used
* Patented PosiLock® system ensures the door remains securely locked when the garage door is closed
* Manual release handle in case of power failure

WARRANTY

* Lifetime motor and belt warranty
* 5-year parts warranty
* 1-year warranty on EverCharge® Standby Power System

 
Owners Manual

   
3850
DC Motor Belt Drive with EverCharg® Standby Power System
Don't let a power outage lock you out of your garage. Our 3850 belt drive opener is the only professionally installed 3/4 HPS® garage door opener with an EverCharge® Standby Power System.
 
3585
3/4 HP Belt Drive Garage Door Opener
Get the ultimate blend of power and quiet in a garage door opener. Our powerful 3/4 HP 3585 opener can lift even the heaviest garage doors effortlessly and with precision.
 
 
3280
1/2 HP Belt Drive Garage Door Opener
Smooth-running reliability is what our enhanced 3280 belt drive opener delivers – and it's quiet enough not to wake your guests in the bedroom above the garage.
 
 
 
 
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