---
product_id: 692644616
title: "LiftMaster New 485LM Battery Backup for Garage Door Openers 3840 3850 8360 8550"
brand: "liftmaster"
price: "€ 339.71"
currency: EUR
in_stock: true
category: "Lift Master"
url: https://www.desertcart.hr/products/692644616-liftmaster-new-485lm-battery-backup-for-garage-door-openers-3840
store_origin: HR
region: Croatia
---

# Power outage resilience 20 emergency openings Screw-in easy install LiftMaster New 485LM Battery Backup for Garage Door Openers 3840 3850 8360 8550

**Brand:** liftmaster
**Price:** € 339.71
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your peace of mind—because your garage deserves backup that never quits!

## Quick Answers

- **What is this?** LiftMaster New 485LM Battery Backup for Garage Door Openers 3840 3850 8360 8550 by liftmaster
- **How much does it cost?** € 339.71 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/692644616-liftmaster-new-485lm-battery-backup-for-garage-door-openers-3840)

## Best For

- liftmaster enthusiasts

## Why This Product

- Trusted liftmaster brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Durable:** Small footprint (7.62 x 10.16 x 10.16 cm) and robust build ensures long-lasting reliability.
- • **Peace of Mind Power:** Never get locked out again—stay connected to your home no matter the outage.
- • **Uninterrupted Access:** Keep your garage door operational even during power failures with up to 20 emergency openings.
- • **Seamless Compatibility:** Designed exclusively for LiftMaster models 3840, 3850, 8360, and 8550 for perfect integration.
- • **Effortless Installation:** Screw-in design means no hassle—get your backup battery up and running in minutes.

## Overview

The LiftMaster 485LM Battery Backup is a compact, screw-in module engineered for select LiftMaster garage door openers (models 3840, 3850, 8360, 8550). It provides up to 20 emergency openings during power outages, ensuring reliable garage access when you need it most.

## Description

The LiftMaster 485LM Battery Backup (ASIN B07Q799TCJ) is a durable, screw‑in backup battery module designed specifically for select LiftMaster garage door opener models—including 3840, 3850, 8360, and 8550—to ensure reliable operation during power outages by providing up to 20 emergency openings .

## Features

- back up battery

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07Q799TCJ |
| Item model number | 485LM |
| Manufacturer | no |
| Product Dimensions | 7.62 x 10.16 x 10.16 cm; 1.71 kg |

## Product Details

- **Brand:** LiftMaster
- **Color:** Black
- **Exterior Finish:** Black
- **Material:** Metal
- **Product Dimensions:** 3"L x 4"W x 4"H

## Images

![LiftMaster New 485LM Battery Backup for Garage Door Openers 3840 3850 8360 8550 - Image 1](https://m.media-amazon.com/images/I/61UXV2abIgL.jpg)

## Frequently Bought Together

- New LiftMaster 485LM Battery Backup for Garage Door Openers 3840 3850 8360 8550
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**Shop now:** [https://www.desertcart.hr/products/692644616-liftmaster-new-485lm-battery-backup-for-garage-door-openers-3840](https://www.desertcart.hr/products/692644616-liftmaster-new-485lm-battery-backup-for-garage-door-openers-3840)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-07-17*