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Liftmaster 485lm Battery Backup

LiftMaster 485LM Battery Backup



The LiftMaster 485LM battery backup system is a power standby system for LiftMaster 3850 and 8550 garage door operators.  This allows for use of the operator, and all of the safety and security features, in the event of a power outage.

The LiftMaster 485LM Battery Backup Price listed is Cash & Carry!

We welcome all customer pick-ups.  After placing your order, please call to schedule a pickup time.   Shipping, Tax, and Installation is separate!



Additional information

Weight 3.5 lbs
Dimensions 5.25 × 4.5 × 5 in


Manufacturer Compatibility

Compatible with Liftmaster Model 3850 & 8550 Residential Operators

Time to Fully Charge

Up to 20 Opens/Closes in a 24 hour Period


1 Year


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