---
product_id: 230611803
title: "Rome Tech CR2032 CMOS Battery for Dell Latitude E5440 E5450 E6440 E6420 | E7440 E7240, Dell AlienWare M11x R1 R2, Area-51 M9700 M9750, Lenovo ThinkPad P51 - 1-Pack"
brand: "rome tech"
price: "4944 Ft"
currency: HUF
in_stock: true
reviews_count: 13
category: "Rome Tech"
url: https://www.desertcart.hu/products/230611803-rome-tech-cr2032-cmos-battery-for-dell-latitude-e5440-e5450
store_origin: HU
region: Hungary
---

# 3V stable voltage output 225mAh long-lasting power Plug & play 10-min install Rome Tech CR2032 CMOS Battery for Dell Latitude E5440 E5450 E6440 E6420 | E7440 E7240, Dell AlienWare M11x R1 R2, Area-51 M9700 M9750, Lenovo ThinkPad P51 - 1-Pack

**Brand:** rome tech
**Price:** 4944 Ft
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your legacy devices with Rome Tech’s unstoppable energy!

## Quick Answers

- **What is this?** Rome Tech CR2032 CMOS Battery for Dell Latitude E5440 E5450 E6440 E6420 | E7440 E7240, Dell AlienWare M11x R1 R2, Area-51 M9700 M9750, Lenovo ThinkPad P51 - 1-Pack by rome tech
- **How much does it cost?** 4944 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/230611803-rome-tech-cr2032-cmos-battery-for-dell-latitude-e5440-e5450)

## 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

- • **Compact Design:** Ultra-small form factor fits effortlessly in tight laptop spaces
- • **Trusted Quality:** Top-rated with 4.6 stars and backed by responsive customer support
- • **Premium Longevity:** High-caliber heat shrink ensures extended battery life and reliability
- • **Effortless Installation:** Quick 10-minute swap with 2-pin connector—no tech degree needed
- • **Universal Compatibility:** Seamlessly powers Dell Latitude, AlienWare, Lenovo ThinkPad & more

## Overview

The Rome Tech CR2032 CMOS battery delivers reliable 3V power with a 225mAh capacity, designed for seamless replacement in a wide range of Dell and Lenovo laptops. Its compact size and premium heat shrink technology ensure long-lasting performance, while the easy 10-minute installation and strong customer ratings make it the go-to choice for professionals maintaining their trusted devices.

## Description

desertcart.com: Rome Tech CR2032 CMOS Battery for Dell Latitude E5440 E5450 E6440 E6420 | E7440 E7240, Dell AlienWare M11x R1 R2, Area-51 M9700 M9750, Lenovo ThinkPad P51 - 1-Pack : Electronics

Review: Perfect replacement for ThinkPad T61 - It fit perfectly in my ThinkPad T61 and works like a charm.
Review: battey - easy to install, perfect fit, excellent functionality,

## Features

- Rome Tech BIOS CMOS battery best suits to replace your broken or non-working old battery - we provide premium quality only
- Wide Compatibility – Works with Dell Latitude E5440, E5450, E6440, E6420, E7440, E7240, Dell AlienWare M11x R1, R2, Area-51 M9700, M9750, Lenovo ThinkPad P51, P52, P70, Yoga 15, and other laptops and mini PCs.
- Enjoy extended reliability of the CR2032 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 installation takes only 10 minutes of your time. Try our customer service for resolving any issues during battery replacement

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08HB72MLM |
| Antenna Location | Indoor/Outdoor |
| Battery Capacity | 225 milliamp_hours |
| Battery Cell Composition | Lithium Ion |
| Battery Cell Type | Lithium Ion |
| Battery Weight | 1 ounces |
| Best Sellers Rank | #2,178 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #81 in Laptop Batteries |
| Brand | Rome Tech |
| Customer Reviews | 4.6 out of 5 stars 239 Reviews |
| Included Components | Battery |
| Item Weight | 68 g |
| Manufacturer | Rome Tech |
| Model Name | 22REGPN2032M |
| Model Number | 22REGPN2032M |
| Number of Batteries | 1 C batteries required. |
| Recommended Uses For Product | Indoor/Outdoor |
| Reusability | Single Use |
| UPC | 308135951304 |
| Unit Count | 1 Count |
| Voltage | 3 volts |
| Warranty Description | 30 Days |

## 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

![Rome Tech CR2032 CMOS Battery for Dell Latitude E5440 E5450 E6440 E6420 | E7440 E7240, Dell AlienWare M11x R1 R2, Area-51 M9700 M9750, Lenovo ThinkPad P51 - 1-Pack - Image 1](https://m.media-amazon.com/images/I/61jHp4y-1YL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect replacement for ThinkPad T61
*by A***R on August 3, 2026*

It fit perfectly in my ThinkPad T61 and works like a charm.

### ⭐⭐⭐⭐⭐ battey
*by A***R on February 4, 2026*

easy to install, perfect fit, excellent functionality,

### ⭐⭐⭐⭐⭐ 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.

## Frequently Bought Together

- Rome Tech CMOS Battery for Lenovo ThinkPad T60, T60p, T61, W500, W510 - BIOS RTC 3V CR2032 with 2 Pin 2 Wire Cable (1-Pack)
- Crucial MX500 1TB 3D NAND SATA 2.5 Inch Internal SSD, up to 560MB/s - CT1000MX500SSD1
- A-Tech 16GB (2x8GB) DDR3/DDR3L 1600MHz PC3L-12800 (PC3-12800) CL11 SODIMM 2Rx8 1.35V 204-Pin Non-ECC SO-DIMM Laptop, Notebook RAM Memory Modules

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**Shop now:** [https://www.desertcart.hu/products/230611803-rome-tech-cr2032-cmos-battery-for-dell-latitude-e5440-e5450](https://www.desertcart.hu/products/230611803-rome-tech-cr2032-cmos-battery-for-dell-latitude-e5440-e5450)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-09-03*