---
product_id: 489393687
title: "CMOS BIOS Battery for Dell Latitude D830, E6530 N4050 E7270, ASUS X611, Samsung R467, R458, Dell Alienware 15, 15 R2 Laptop Backup 3V RTC CR2032 with 2 Wire Cable"
brand: "rome tech"
price: "A$14"
currency: AUD
in_stock: true
reviews_count: 13
category: "Rome Tech"
url: https://www.desertcart.com.au/products/489393687-cmos-bios-battery-for-dell-latitude-d830-e6530-n4050-e7270
store_origin: AU
region: Australia
---

# Long-lasting premium reliability 3V CR2032 power 2-wire plug & play CMOS BIOS Battery for Dell Latitude D830, E6530 N4050 E7270, ASUS X611, Samsung R467, R458, Dell Alienware 15, 15 R2 Laptop Backup 3V RTC CR2032 with 2 Wire Cable

**Brand:** rome tech
**Price:** A$14
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your legacy devices with Rome Tech’s BIOS battery—because your laptop deserves a second life!

## Quick Answers

- **What is this?** CMOS BIOS Battery for Dell Latitude D830, E6530 N4050 E7270, ASUS X611, Samsung R467, R458, Dell Alienware 15, 15 R2 Laptop Backup 3V RTC CR2032 with 2 Wire Cable by rome tech
- **How much does it cost?** A$14 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/489393687-cmos-bios-battery-for-dell-latitude-d830-e6530-n4050-e7270)

## Best For

- rome tech enthusiasts

## Why This Product

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

## Key Features

- • **Trusted by Pros:** Highly rated with 4.5 stars and top 100 laptop battery ranking—join the savvy users.
- • **Premium Longevity:** Engineered for extended lifespan to keep your system clock ticking flawlessly.
- • **Compact Powerhouse:** Ultra-small form factor with 2-pin cable fits tight spaces without hassle.
- • **Quick DIY Installation:** Replace your CMOS battery in under 10 minutes—no tech degree required.
- • **Effortless Compatibility:** Seamlessly fits Dell, ASUS, Samsung & Alienware models for instant BIOS revival.

## Overview

The Rome Tech CMOS BIOS Battery is a premium 3V CR2032 replacement with a 2-wire connector, designed for a wide range of Dell, ASUS, Samsung, and Alienware laptops. It offers long-lasting reliability, compact size for easy installation, and is highly rated by users for restoring BIOS functionality and system clock accuracy.

## Description

desertcart.com: Rome Tech CMOS BIOS Battery for Dell Latitude D830, E6530 N4050 E7270, ASUS X611, Samsung R467, R458, Dell Alienware 15, 15 R2 Laptop Backup 3V RTC CR2032 with 2 Wire Cable : Electronics

Review: Works in my Latitude 7390 2-in-1 - My Dell Latitude 7390 2-in-1 wouldn't remember the time of day. The light on the front edge blinked white and orange in the pattern which indicated bad CMOS battery. The wires on this replacement battery are longer than on the original, but there was enough room inside the case to route the excess length. Now my Latitude remembers the date and the light on the front edge doesn't blink.
Review: Good - Battery works good, but this one wasn't the issue with my laptop. It's also a pain to put in.

## Features

- Rome Tech BIOS CMOS battery CR2032 best suits to replace your broken or non-working old battery - we provide premium quality only
- RTC battery compatible with such models as: Dell Alienware 17 R2, 17 R3, 14, 15, 15 R2; Dell Latitude D830, N4050, E6320, E6420, XFR E6420, ATG E6420, E6520, E5530, E6230, E5430, E6530, E6430, ATG E6430, E7240, E7440, E6540, E6440, E5440, E5540, E5250, 3550, E7250, E7450, E5450, E5550, E5570, E5470, E7270, E7470, 5580, 7480, 5480, 7280, 13 (3380), 3189, 7490, 5590, 5490; Asus X611, 1215B Netbook, S56; HP CQ41, 8440p G4; Samsung R467, R458; Predator Helios 300
- Enjoy extended reliability of the CMOS battery and heat shrink of a high caliber - the CMOS battery will last you for a long time
- The size of the entire unit is extremely small - will fit in almost any electronic device requires 3V battery connector with 2 pins and 2 wires
- Quick and simple battery CMOS installation takes only 10 minutes of your time. Try our customer service for resolving any issues during battery replacement

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09Y9H36BP |
| Batteries | 1 C batteries required. |
| Best Sellers Rank | #14,739 in Electronics ( See Top 100 in Electronics ) #94 in Laptop Batteries |
| Customer Reviews | 4.5 4.5 out of 5 stars (227) |
| Date First Available | April 19, 2022 |
| Item Weight | 0.634 ounces |
| Item model number | see description |
| Manufacturer | Rome Tech |
| Package Dimensions | 5.47 x 4.25 x 0.39 inches |

## Product Details

- **Battery Capacity:** 225 Milliamp Hours
- **Battery Cell Composition:** Lithium Ion
- **Brand:** Rome Tech
- **Number of Batteries:** 1 C batteries required.
- **Recommended Uses For Product:** Indoor/Outdoor

## Images

![CMOS BIOS Battery for Dell Latitude D830, E6530 N4050 E7270, ASUS X611, Samsung R467, R458, Dell Alienware 15, 15 R2 Laptop Backup 3V RTC CR2032 with 2 Wire Cable - Image 1](https://m.media-amazon.com/images/I/61Dt+k6INwL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works in my Latitude 7390 2-in-1
*by Y***. on December 18, 2024*

My Dell Latitude 7390 2-in-1 wouldn't remember the time of day. The light on the front edge blinked white and orange in the pattern which indicated bad CMOS battery. The wires on this replacement battery are longer than on the original, but there was enough room inside the case to route the excess length. Now my Latitude remembers the date and the light on the front edge doesn't blink.

### ⭐⭐⭐⭐⭐ Good
*by K***C on June 2, 2025*

Battery works good, but this one wasn't the issue with my laptop. It's also a pain to put in.

### ⭐⭐⭐⭐⭐ Bien empacado y se siente de buena calidad. Además numeración exactamente como se describe.
*by F***E on December 21, 2025*

Excelente

## Frequently Bought Together

- Rome Tech CMOS BIOS Battery for Dell Alienware 14 / Dell Alienware 15 / Dell Alienware 15 R2 Laptop Backup 3V RTC Button Battery CR2032 with 2 Wire Cable
- LeFix CMOS Battery RTC Battery CR2032 Compatible with DELL D830 E6530 N4050 E7270;for HP CQ41 8440p G4;for ASUS S56 X611;for Samsung R467 R458,Black

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-05*