---
product_id: 18038313
title: "Chamberlain Liftmaster 485LM Battery LiftMaster Garage Door Openers 485LM Battery Backup, OEM"
brand: "chamberlain"
price: "€ 168.04"
currency: EUR
in_stock: true
reviews_count: 13
category: "Chamberlain"
url: https://www.desertcart.hr/products/18038313-chamberlain-liftmaster-485lm-battery-liftmaster-garage-door-openers-485lm-battery
store_origin: HR
region: Croatia
---

# 4.5A amperage for reliable backup 12Ah sealed lead-acid power 100% OEM, easy DIY install Chamberlain Liftmaster 485LM Battery LiftMaster Garage Door Openers 485LM Battery Backup, OEM

**Brand:** chamberlain
**Price:** € 168.04
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your peace of mind—never get stuck in the dark again!

## Quick Answers

- **What is this?** Chamberlain Liftmaster 485LM Battery LiftMaster Garage Door Openers 485LM Battery Backup, OEM by chamberlain
- **How much does it cost?** € 168.04 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/18038313-chamberlain-liftmaster-485lm-battery-liftmaster-garage-door-openers-485lm-battery)

## Best For

- chamberlain enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Powerful:** Small 4x4 inch footprint packs a 12V, 12Ah sealed lead-acid battery delivering dependable power.
- • **Plug & Play OEM Quality:** Factory-supplied LiftMaster battery ensures perfect compatibility and peak performance.
- • **Universal Compatibility:** Works flawlessly with Sears, Home Depot, and all LiftMaster battery backup models with slide-in batteries.
- • **Effortless DIY Replacement:** Simple step-by-step instructions let you swap batteries in minutes—no technician needed.
- • **Uninterrupted Access, Always:** Keep your garage door operational even during power outages with seamless battery backup.

## Overview

The LiftMaster 485LM Battery Backup is a 12V, 12Ah sealed lead-acid battery designed as a 100% OEM replacement for LiftMaster garage door openers. It ensures your garage door remains functional during power outages, compatible with multiple models including Sears and Home Depot units. Easy to install with DIY instructions, it delivers reliable 4.5A amperage in a compact 4x4 inch form factor.

## Description

Easy DIY- Battery Replacement Instructions 1. Disconnect power to opener. 2. Using a Phillips head screwdriver, remove the battery cover on the motor unit. 3. Remove old battery and discard. 4. Partially insert new battery into motor unit with terminals facing out. 5. Connect red (+) and black (-) wires from motor unit to corresponding terminals on battery. 6. Replace battery cover. 7. Reconnect power.

Review: Exact replacement - Great battery. Installed it and everything works great. Much cheaper than the other places on desertcart.
Review: Fit perfectly - Fit perfectly and was easy to install. Last battery lasted for 6 years. I hope this one lasts as long.

## Features

- Allows you to still come & go through your garage door, when the power goes out
- Lift master 485lm battery backup system - chamberlain part number 4228- 100% OEM
- New production dates- LiftMaster factory supplied
- Also works with sears and home depot garage door battery back ups- replacement part
- Compatibility for all battery back up units with slide in battery - 385/855 and new models

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001T3WHZ8 |
| Amperage | 4.5 A |
| Antenna Location | Garage Door Opener |
| Battery Capacity | 12 amp_hours |
| Battery Cell Composition | Sealed Lead Acid |
| Battery Cell Type | Sealed Lead Acid |
| Best Sellers Rank | #88,145 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #65 in Garage Door Opener System Parts |
| Brand | CHAMBERLAIN |
| Customer Reviews | 4.7 out of 5 stars 1,551 Reviews |
| Global Trade Identification Number | 00012381994854 |
| Item Dimensions | 4 x 4 x 4 inches |
| Item Weight | 3.1 pounds |
| Manufacturer | Liftmaster |
| Model Name | 475lm |
| Model Number | 485lm |
| Number of Batteries | 1 12V batteries required. |
| Recommended Uses For Product | Garage Door Opener |
| UPC | 012381994854 |
| Unit Count | 1 Count |
| Voltage | 12 volts_of_direct_current |

## Product Details

- **Battery Capacity:** 12 amp_hours
- **Battery Cell Composition:** Sealed Lead Acid
- **Brand:** CHAMBERLAIN
- **Number of Batteries:** 1 12V batteries required.
- **Recommended Uses For Product:** Garage Door Opener

## Images

![Chamberlain Liftmaster 485LM Battery LiftMaster Garage Door Openers 485LM Battery Backup, OEM - Image 1](https://m.media-amazon.com/images/I/711e-okZBFL.jpg)
![Chamberlain Liftmaster 485LM Battery LiftMaster Garage Door Openers 485LM Battery Backup, OEM - Image 2](https://m.media-amazon.com/images/I/415ORMJAZzL.jpg)

## Questions & Answers

**Q: Is this a genuine oem by liftmaster/chamberlain?  i am seeing both yes and no here.**
A: LiftMaster is made by Chamberlain Group. They are the same product with a different sticker. Quality will be exactly the same.

**Q: Can this be used on the Liftmaster Model 8360LM?**
A: The battery is 2 and 3/4 inches by 3 and 1/2 inches by 4.0 inches with the terminals on the long end.  If your battery compartment is large enough for this size battery, it will definitely work for you.s

**Q: Is this battery an agm battery?  if not, are agm batteries better?**
A: I replaced my battery when it was beeping.

**Q: is this battery compatable with lift master 8500?**
A: No the 485lm is only for trolley operators with battery back up. The 8500 has the external battery 475LM. You can either buy the whole unit 475lm or the 2 internal  batteries-  041B0591 Liftmaster 475 Replacement Batteries

## Customer Reviews

### ⭐⭐⭐⭐⭐ Exact replacement
*by J***N on July 5, 2026*

Great battery. Installed it and everything works great. Much cheaper than the other places on Amazon.

### ⭐⭐⭐⭐⭐ Fit perfectly
*by P***O on May 10, 2026*

Fit perfectly and was easy to install. Last battery lasted for 6 years. I hope this one lasts as long.

### ⭐⭐⭐⭐⭐ Clear & As Described.
*by A***R on September 8, 2026*

Clear description was provided. Received as was indicated and next day. No issues or concerns.

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-10-10*