---
product_id: 583400775
title: "Rome Tech Battery for Dell XPS 13 (7390, 9305, 9343, 9350, 9360, 9365, 9370, 9380), XPS 15 (9550, 9560, 9570) & Precision 5510, 5520, 5530 CMOS BIOS RTC Backup with 2-Wire Cable"
brand: "rome tech"
price: "¥2925"
currency: JPY
in_stock: true
reviews_count: 7
category: "Rome Tech"
url: https://www.desertcart.jp/products/583400775-rome-tech-battery-for-dell-xps-13-7390-9305-9343
store_origin: JP
region: Japan
---

# Fast recharge in-device Long-lasting stable power Quick 10-min install Rome Tech Battery for Dell XPS 13 (7390, 9305, 9343, 9350, 9360, 9365, 9370, 9380), XPS 15 (9550, 9560, 9570) & Precision 5510, 5520, 5530 CMOS BIOS RTC Backup with 2-Wire Cable

**Brand:** rome tech
**Price:** ¥2925
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your productivity with Rome Tech’s stealthy CMOS battery upgrade!

## Quick Answers

- **What is this?** Rome Tech Battery for Dell XPS 13 (7390, 9305, 9343, 9350, 9360, 9365, 9370, 9380), XPS 15 (9550, 9560, 9570) & Precision 5510, 5520, 5530 CMOS BIOS RTC Backup with 2-Wire Cable by rome tech
- **How much does it cost?** ¥2925 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/583400775-rome-tech-battery-for-dell-xps-13-7390-9305-9343)

## 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

- • **Wide Compatibility:** Perfect fit for multiple Dell XPS 13, XPS 15, and Precision models—future-proof your device.
- • **Extended Battery Life:** High-quality CMOS battery designed to last, reducing frequent replacements and downtime.
- • **Reliable Power Backup:** Ensures your Dell XPS & Precision laptops never lose BIOS settings or time.
- • **Plug & Play Simplicity:** Hassle-free 10-minute installation with included 2-wire cable for seamless replacement.
- • **Enhanced Device Stability:** Eliminates boot loops and clock resets, keeping your workflow uninterrupted and professional.

## Overview

The Rome Tech ML1220 CMOS battery is a premium replacement designed for Dell XPS 13, XPS 15, and Precision 5510-5530 laptops. It delivers stable, long-lasting power to maintain BIOS settings and system clock accuracy, ships partially charged for optimal performance, and installs quickly with a 2-wire cable. This compact, reliable battery prevents boot issues and clock resets, ensuring your device runs smoothly and professionally.

## Description

Buy Rome Tech Battery for Dell XPS 13 (7390, 9305, 9343, 9350, 9360, 9365, 9370, 9380), XPS 15 (9550, 9560, 9570) & Precision 5510, 5520, 5530 CMOS BIOS RTC Backup with 2-Wire Cable: Batteries - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Works Well, and My Razerblade No Longer Hates Me - My 2018 Razerblade has been an absolute goober regarding its power-on behavior ever since I got it a couple of years ago. When not connected to the power brick, it would partake in this peculiar boot-loop sort of thing where it would POST (power-on self-test) and then shut down, and then repeat the process multiple times before finally booting into Windows. And the fun and games didn't stop there - Once Windows had been successfully awakened, the time was the same as when I'd last powered it off, requiring me to go into the date and time settings once logged in and synchronize it with time.windows.com. I didn't know what was causing this and I ignored it for awhile, but eventually I decided that enough was enough and that I was sick of sitting there and Kubrick-staring at my laptop while it performed this stupid little dance. So I did some digging on the subject and found out, through the supreme and everlasting power of Reddit, that this malarkey was likely due to a dead CMOS battery. Upon pantsing the Blade, I saw a battery that looked just like this one and confirmed via YouTube that it was indeed the CMOS battery on this device. So I decided to pick this up and install it onto the laptop's board the next day, and voila - She fires right up no matter what and the clock is accurate each time. This battery seems to work quite well and I'd recommend it to anyone in a similar conundrum to myself.
Review: Works with Dell XPS 13 9350 - Works great in my Dell XPS 13 9350 - the cable is a bit longer than the OEM one, but worked great otherwise.

## Features

- High-Quality Replacement: Rome Tech ML1220 CMOS battery delivers long-lasting, stable power. Ships partially charged (2.6–2.8 V) and fully recharges in your device for optimal operation.
- RTC rechargeable battery compatible with such models as: Dell XPS 13 9350 / Dell XPS 13 9343 / Dell XPS 13 9360/Dell XPS 13 9365 2-in-1 / Dell XPS 15 9550 / Dell XPS 15 9560
- 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
- Fast and hassle-free installation: replace your CMOS battery in about 10 minutes. Dedicated customer service is available for any assistance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CM449YK9 |
| Batteries | 1 CR2 batteries required. (included) |
| Best Sellers Rank | #42,875 in Electronics ( See Top 100 in Electronics ) #516 in Laptop Batteries |
| Customer Reviews | 4.9 4.9 out of 5 stars (19) |
| Date First Available | October 30, 2023 |
| Item Weight | 0.352 ounces |
| Manufacturer | Rome Tech |
| Package Dimensions | 5.47 x 4.17 x 0.12 inches |

## Product Details

- **Battery Capacity:** 225 Milliamp Hours
- **Battery Cell Composition:** Lithium Ion
- **Brand:** Rome Tech
- **Number of Batteries:** 1 CR2 batteries required. (included)
- **Recommended Uses For Product:** Indoor

## Images

![Rome Tech Battery for Dell XPS 13 (7390, 9305, 9343, 9350, 9360, 9365, 9370, 9380), XPS 15 (9550, 9560, 9570) & Precision 5510, 5520, 5530 CMOS BIOS RTC Backup with 2-Wire Cable - Image 1](https://m.media-amazon.com/images/I/61HaJHtP0AL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works Well, and My Razerblade No Longer Hates Me
*by S***E on September 4, 2024*

My 2018 Razerblade has been an absolute goober regarding its power-on behavior ever since I got it a couple of years ago. When not connected to the power brick, it would partake in this peculiar boot-loop sort of thing where it would POST (power-on self-test) and then shut down, and then repeat the process multiple times before finally booting into Windows. And the fun and games didn't stop there - Once Windows had been successfully awakened, the time was the same as when I'd last powered it off, requiring me to go into the date and time settings once logged in and synchronize it with time.windows.com. I didn't know what was causing this and I ignored it for awhile, but eventually I decided that enough was enough and that I was sick of sitting there and Kubrick-staring at my laptop while it performed this stupid little dance. So I did some digging on the subject and found out, through the supreme and everlasting power of Reddit, that this malarkey was likely due to a dead CMOS battery. Upon pantsing the Blade, I saw a battery that looked just like this one and confirmed via YouTube that it was indeed the CMOS battery on this device. So I decided to pick this up and install it onto the laptop's board the next day, and voila - She fires right up no matter what and the clock is accurate each time. This battery seems to work quite well and I'd recommend it to anyone in a similar conundrum to myself.

### ⭐⭐⭐⭐⭐ Works with Dell XPS 13 9350
*by A***N on May 14, 2025*

Works great in my Dell XPS 13 9350 - the cable is a bit longer than the OEM one, but worked great otherwise.

### ⭐⭐⭐⭐⭐ Good quality battery
*by V***M on May 28, 2025*

Needed this to make an old Dell laptop work like it should

## Frequently Bought Together

- Rome Tech ML1220 CMOS BIOS Battery for Dell XPS 13 9350, 9343, 9360, 9365 2-in-1, 15 9550, 9560 - Laptop Backup RTC with 2 Wire Cable
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**Shop now:** [https://www.desertcart.jp/products/583400775-rome-tech-battery-for-dell-xps-13-7390-9305-9343](https://www.desertcart.jp/products/583400775-rome-tech-battery-for-dell-xps-13-7390-9305-9343)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-18*