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🔋 Power your peace of mind—never get stuck in the dark again!
The LiftMaster 485LM Battery Backup is a UL-certified, screw-in battery module designed for select LiftMaster garage door openers. It provides up to 20 emergency openings during power outages, ensuring reliable garage access without the need for professional installation. Lightweight and perfectly compatible with models 3840, 3850, 8360, and 8550, it’s a cost-effective solution to avoid emergency repair calls.
| ASIN | B07Q799TCJ |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #27,303 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #13 in Garage Door Opener System Parts |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,217) |
| Date First Available | May 4, 2019 |
| Included Components | Battery |
| Installation Type | Screw-In |
| Item Package Quantity | 1 |
| Item Weight | 3.67 pounds |
| Item model number | 485LM |
| Manufacturer | no |
| Product Dimensions | 3 x 4 x 4 inches |
| Recommended Uses For Product | backup power for garage door openers during power outages |
| Specification Met | UL |
| UPC | 368093610583 |
G**L
Battery backup
Easy to install. Much cheaper than getting outside service. Replaces garage door backup battery.
L**A
Perfect fit! Easy repair!
This battery was the exact fix I needed for my garage doors. It was easy to replace and a great value! Didn’t need to call out the repair guy for emergency weekend fix! Thank you for saving me money and time!
N**Y
New Liftlaster 485LM Battery Backup
Fit perfect in the garage door opener. Easy to replace. Works great
B**Z
Perfect replacement
Easy to install perfect size and fit. Exact replacement for the original.
T**T
Ever get locked in your garage during a blackout?
Our garage door opener has battery backup and after 6 years it failed to recharge. This one fit perfectly and started charging immediately.
R**K
Charged
Works great
G**D
Oh, What A Relief!
The constant low backup battery warning beeping from my Lift Master Model 8550W-7 with Wi-Fi has stopped! This battery is the perfect replacement for the original battery that lasted seven years. And, if you are concerned, it is very easy to replace. You do need a small ladder to reach the garage door opener and a Phillips head screw driver (I also used a pair of pliers). While standing on your ladder, unplug the unit, open the light cover (mine was on the right side of the unit as you face the garage door), unscrew the screw holding the battery compartment cover (if you drop the screw -- no worries -- it falls into the open light cover), remove the red and black wire connectors from the battery terminals (I had to use a pair of needle nose pliers to wiggle the connectors to get them off), slide the old battery out of the compartment, slip in the new battery, reconnect the wires to the red and black terminals (make sure you get the correct color wire on the same colored terminal), replace the cover with the screw, close the light cover, plug the unit back in and you are done. Took me 10 minutes at most. Best of all, the beeping did not return. On the other side of the unit, if you open the other light cover, you will see a green light -- mine was flashing which I think means that the new battery is charging. Anyway, glad I purchased the battery and did not have to pay a garage door technician to install it.
R**E
great product
great price crrently doing what it was meant to do
Trustpilot
2 weeks ago
2 weeks ago