---
product_id: 103165390
title: "Neptune Brand NT485LM Replacement Battery for Chamberlain LiftMaster 485LM 4228 41A6357-1 3850, 3850P and HD900D Battery Compatible with Backup - Equipped Garage Door Openers…"
brand: "neptune power products"
price: "170.38 DT"
currency: TND
in_stock: true
reviews_count: 8
url: https://www.desertcart.tn/products/103165390-neptune-brand-nt485lm-replacement-battery-for-chamberlain-liftmaster-485lm-4228
store_origin: TN
region: Tunisia
---

# Deep Discharge Recovery 12V 5AH Power Wide Temp Range Neptune Brand NT485LM Replacement Battery for Chamberlain LiftMaster 485LM 4228 41A6357-1 3850, 3850P and HD900D Battery Compatible with Backup - Equipped Garage Door Openers…

**Brand:** neptune power products
**Price:** 170.38 DT
**Availability:** ✅ In Stock

## Summary

> 🔧 Power Up Your Garage with Confidence!

## Quick Answers

- **What is this?** Neptune Brand NT485LM Replacement Battery for Chamberlain LiftMaster 485LM 4228 41A6357-1 3850, 3850P and HD900D Battery Compatible with Backup - Equipped Garage Door Openers… by neptune power products
- **How much does it cost?** 170.38 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/103165390-neptune-brand-nt485lm-replacement-battery-for-chamberlain-liftmaster-485lm-4228)

## Best For

- neptune power products enthusiasts

## Why This Product

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

## Key Features

- • **Unmatched Reliability:** Experience peace of mind with a maintenance-free design.
- • **Versatile Mounting Options:** Install it anywhere—this battery thrives in any position.
- • **Shock & Vibration Resistant:** Built to endure, ensuring long-lasting performance.
- • **High Performance in Extremes:** Stay powered up, whether it's scorching or freezing outside.
- • **30-Day Refund & 1-Year Warranty:** Shop confidently with our hassle-free return policy.

## Overview

The Neptune Brand NT485LM Replacement Battery is a robust 12V 5AH Sealed Lead Acid battery designed for compatibility with various Chamberlain LiftMaster models. It features a maintenance-free design, exceptional discharge recovery, and can operate in a wide range of temperatures, making it the ideal choice for reliable garage door opener performance.

## Description

Neptune Brand NT485LM Replacement Battery for Chamberlain LiftMaster 485LM 4228 41A6357-1 3850, 3850P and HD900D Battery Compatible with Backup - Equipped Garage Door Openers…

## Features

- NT485LM is a 12V 5AH Sealed Lead Acid (SLA) rechargeable maintenance free battery
- Dimensions: 3.54“x 2.76“x 3.94“. Terminal: F1. Listing is for the Battery only. No wire harness or mounting accessories included.
- SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recovery.
- Rechargeable battery that can be mounted in any position, resists shocks and vibration. Long lasting high performance in high and low temperatures.
- Perfect replacement for EXP1240, UPG UB1240, MightyMax ML4-12, Power-Sonic PS-1240, Power King PK1240 and many more! 30 day refund policy and full 1 year warranty. desertcart doesn't deal with the return of battery-related products, so please contact the seller directly. Our Neptune support team is on standby for YOU.

## Images

![Neptune Brand NT485LM Replacement Battery for Chamberlain LiftMaster 485LM 4228 41A6357-1 3850, 3850P and HD900D Battery Compatible with Backup - Equipped Garage Door Openers… - Image 1](https://m.media-amazon.com/images/I/71R0sV+VOtL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Perfect fit and works as expected
  

*by B***W on Reviewed in the United States 🇺🇸 on February 26, 2023*

Fit perfect as replacement for garage door opener, and the tool is a nice bonus

### ⭐⭐⭐⭐⭐ 







  
  
    Exact replacement for my liftmaster garage door opener’s
  

*by A***R on Reviewed in the United States 🇺🇸 on January 16, 2023*

Works great, plugged right in and fully charged the next day for usage when the power went out again.

### ⭐⭐⭐⭐⭐ 







  
  
    Perfecto
  

*by D***R on Reviewed in the United States 🇺🇸 on July 25, 2022*

This nice money saving back up battery is perfect. It was easy to install, much cheaper than the requested battery from the garage door opener manufacture. I am very happy with this purchase, job well done guys.

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**Shop now:** [https://www.desertcart.tn/products/103165390-neptune-brand-nt485lm-replacement-battery-for-chamberlain-liftmaster-485lm-4228](https://www.desertcart.tn/products/103165390-neptune-brand-nt485lm-replacement-battery-for-chamberlain-liftmaster-485lm-4228)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-30*