.product_section .product_form, .product_gallery { opacity: 1; } .multi_select, form .select { display: block !important; } .image-element__wrap { display: none; }

Springs

Springs & Lift Systems

Torquemaster Springs

Wayne-Dalton-Torquemaster-Spring-Compare

Extension Springs

Torsion Springs

LiftMaster 485LM garage door opener backup battery 12V 5Ah replacement

LiftMaster 485LM replacement backup battery for garage door opener EverCharge system

LiftMaster 485LM EverCharge standby battery for 3850 8360 8550 openers

Liftmaster 485LM Replacement Battery

Liftmaster

SKU: LM-485

.price-ui--loading { display: block !important; opacity: 1 !important; }

$68.99$82.99

Description
Compatibility
Instructions
Reviews
FAQs

Description

Liftmaster 485LM is the replacement battery for the EverCharge standby power system for Liftmaster 3850, 8360, and 8550 garage door openers. 12 volt 5ah.Manufacturer original equipment replacement part.

Includes:

485LM Battery

Compatibility

Compatible with: Liftmaster 3850, 8360, 8550 garage door opener.

Instructions

Replacing the Battery:

Disconnect power to opener.
Using a Phillips head screwdriver, remove the battery cover on the motor unit.
Remove the old battery and discard.
Partially insert new battery into motor unit with terminals facing out.
Connect red (+) and black (-) wires from motor unit to corresponding terminals on battery.
Replace battery cover.
Reconnect power.

Reviews

FAQs

Handpicked for you...

Blog posts - Garage Door DIY Handbook

How to Install a Garage Door Quieting Kit: Complete Guide

December 09, 2025 4 min read

We've found that replacing the majority of the hinges and installing the rest of the kit does a pretty good job of silencing the door without needing to deal with that bottom roller. If you really feel it needs to be changed, we have a separate process for that, but it's not necessary for most installations.

How to Order the Correct Torquemaster Spring | Height & Weight Method

December 09, 2025 3 min read

Stop guessing your TorqueMaster spring. If the sticker is gone or unreadable, measuring your door height and weight is the only reliable way to get the right replacement the first time.

Torque Master Spring Installation Made Easy: 6 Simple Steps

October 19, 2025 4 min read

Installing Torque Master springs might seem intimidating at first, but with the right tools and step-by-step guidance, it's a manageable DIY project.

```html ```

Description
Compatibility
Instructions
Reviews
FAQs