---
product_id: 523926684
title: "Rome Tech ML1220 CMOS BIOS Battery for Dell Precision 5510, 5520, 5530, 5540, 5290 2-in-1 - Rechargeable Laptop Backup RTC with 2 Wire Cable"
brand: "rome tech"
price: "R320"
currency: ZAR
in_stock: true
category: "Rome Tech"
url: https://www.desertcart.co.za/products/523926684-rome-tech-ml1220-cmos-bios-battery-for-dell-precision-5510
store_origin: ZA
region: South Africa
---

# 225mAh Capacity 3V Rechargeable Power Plug & Play 2-Wire Connector Rome Tech ML1220 CMOS BIOS Battery for Dell Precision 5510, 5520, 5530, 5540, 5290 2-in-1 - Rechargeable Laptop Backup RTC with 2 Wire Cable

**Brand:** rome tech
**Price:** R320
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your precision with Rome Tech’s sleek, rechargeable BIOS battery!

## Quick Answers

- **What is this?** Rome Tech ML1220 CMOS BIOS Battery for Dell Precision 5510, 5520, 5530, 5540, 5290 2-in-1 - Rechargeable Laptop Backup RTC with 2 Wire Cable by rome tech
- **How much does it cost?** R320 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/523926684-rome-tech-ml1220-cmos-bios-battery-for-dell-precision-5510)

## 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

- • **Effortless Installation:** Quick 10-minute swap with a simple 2-wire cable—no tech degree needed.
- • **Wide Dell Compatibility:** Perfectly tailored for Dell Precision 5510, 5520, 5530, 5540 & Latitude 5290 2-in-1 models.
- • **Compact & Lightweight Design:** Ultra-small 3-gram unit fits seamlessly inside your laptop without bulk.
- • **Reliable Rechargeable Backup:** Keeps your Dell Precision running smoothly with a rechargeable 3V CMOS battery.
- • **Premium Heat Shrink Protection:** Durable casing ensures long-lasting performance under heat stress.

## Overview

The Rome Tech ML1220 CMOS BIOS Battery is a rechargeable 3V backup battery designed specifically for Dell Precision and Latitude 2-in-1 laptops. Featuring a compact 3-gram design and a 225mAh capacity, it offers reliable, long-lasting performance with easy 10-minute installation via a 2-wire connector. Engineered with premium heat shrink protection, this battery ensures your laptop’s RTC functions flawlessly, preventing BIOS failures and system errors.

## Description

Buy Rome Tech ML1220 CMOS BIOS Battery for Dell Precision 5510, 5520, 5530, 5540, 5290 2-in-1 - Rechargeable Laptop Backup RTC with 2 Wire Cable: Batteries - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- Rome Tech BIOS CMOS battery ML1220 best suits to replace your broken or non-working old battery - we provide premium quality only. The battery may arrive at 2.6–2.8 V; the computer will recharge it to 3.0 V after installation for normal use.
- RTC rechargeable battery compatible with such models as: Dell Precision 5510 / Dell Precision 5520 / Dell Precision 5530 / Dell Precision 5540 / Dell Latitude 5290 2-in-1
- 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 | B0BSGSWHM2 |
| Antenna Location | Laptop |
| Battery Capacity | 225 Milliamp Hours |
| Battery Cell Type | Other Than Listed |
| Battery Weight | 3 Grams |
| Best Sellers Rank | #9,278 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #422 in Laptop Batteries |
| Brand | Rome Tech |
| Built-In Media | battery |
| Compatible Phone Models | Dell Precision 5510 / Dell Precision 5520 / Dell Precision 5530 / Dell Precision 5540 ? / Dell Latitude 5290 2-in-1 |
| Customer Reviews | 2.9 2.9 out of 5 stars (5) |
| Manufacturer | Rome Tech |
| Model Name | ml1220 |
| Model Number | 22SLIMPNML1220S |
| Number of Batteries | 1 C batteries required. (included) |
| Reusability | Single Use |
| UPC | 712302251898 |
| Unit Count | 1.0 Count |
| Voltage | 3 Volts |
| Warranty Description | 30 Days |

## Product Details

- **Battery Capacity:** 225 Milliamp Hours
- **Battery Cell Composition:** Other Than Listed
- **Brand:** Rome Tech
- **Number of Batteries:** 1 C batteries required. (included)
- **Recommended Uses For Product:** Laptop

## Images

![Rome Tech ML1220 CMOS BIOS Battery for Dell Precision 5510, 5520, 5530, 5540, 5290 2-in-1 - Rechargeable Laptop Backup RTC with 2 Wire Cable - Image 1](https://m.media-amazon.com/images/I/61jTNKfIkVL.jpg)

## Available Options

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

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.co.za/products/523926684-rome-tech-ml1220-cmos-bios-battery-for-dell-precision-5510](https://www.desertcart.co.za/products/523926684-rome-tech-ml1220-cmos-bios-battery-for-dell-precision-5510)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-07-22*