---
product_id: 578785908
title: "CR1620 CMOS Battery for HP EliteBook 840 G7"
brand: "rome tech"
price: "¥3284"
currency: JPY
in_stock: true
category: "Rome Tech"
url: https://www.desertcart.jp/products/578785908-cr1620-cmos-battery-for-hp-elitebook-840-g7
store_origin: JP
region: Japan
---

# 225mAh long-lasting capacity 3V Lithium Ion power Plug & play 2-pin connector CR1620 CMOS Battery for HP EliteBook 840 G7

**Brand:** rome tech
**Price:** ¥3284
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your EliteBook like a pro — never lose your BIOS mojo!

## Quick Answers

- **What is this?** CR1620 CMOS Battery for HP EliteBook 840 G7 by rome tech
- **How much does it cost?** ¥3284 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/578785908-cr1620-cmos-battery-for-hp-elitebook-840-g7)

## 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 & Lightweight Design:** At just 3 grams, it fits discreetly without bulk.
- • **Reliable 3V Lithium Ion Power:** Consistent voltage ensures your BIOS settings stay intact.
- • **Effortless 10-Minute Installation:** Get your HP EliteBook 840 G7 back in action without the hassle.
- • **Precision Fit for EliteBook 840 G7:** Designed specifically for seamless motherboard compatibility.
- • **Premium Quality with Customer Support:** Backed by Rome Tech’s trusted service and 30-day warranty.

## Overview

The Rome Tech CR1620 CMOS Battery is a premium 3V lithium-ion replacement battery designed specifically for the HP EliteBook 840 G7. Featuring a compact 2-pin connector and a lightweight 3-gram build, it offers reliable BIOS power retention with a 225mAh capacity. Installation is quick and straightforward, supported by Rome Tech’s dedicated customer service and a 30-day warranty, ensuring your laptop’s motherboard settings remain flawless.

## Description

Buy Rome Tech CR1620 CMOS Battery for HP EliteBook 840 G7 | Backup 3V RTC CR 1620 HP Laptop Battery with 2 Wire Cable on desertcart.com ✓ FREE SHIPPING on qualified orders

## Features

- Rome Tech BIOS CMOS HP mu06 notebook battery CR1620 best suits to replace your broken or non-working old CMOS battery for PC motherboard - we provide premium quality only
- RTC laptop CMOS battery compatible with such models as: HP EliteBook 840 G7
- Enjoy extended reliability of the CMOS HP Elitebook battery and heat shrink of a high caliber - the CMOS battery with connector 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 HP Elitebook 840 G3 battery CMOS installation takes only 10 minutes of your time. Try our customer service for resolving any issues during HP Elitebook 840 G5 battery replacement

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CLYPZXJT |
| Antenna Location | Indoor |
| Battery Capacity | 225 amp_hours |
| Battery Cell Type | Lithium Ion |
| Battery Weight | 3 g |
| Best Sellers Rank | #17,407 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #1,005 in Laptop Batteries |
| Brand | Rome Tech |
| Compatible Phone Models | HP EliteBook 840 G7 |
| Customer Reviews | 4.2 4.2 out of 5 stars (9) |
| Manufacturer | Rome Tech |
| Model Name | 22LONGNP1620S |
| Number of Batteries | 1 Lithium Ion batteries required. |
| Reusability | No |
| UPC | 712302255575 |
| Unit Count | 1 Count |
| Voltage | 3 volts_of_alternating_current |
| Warranty Description | 30 Days |

## Product Details

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

## Images

![CR1620 CMOS Battery for HP EliteBook 840 G7 - Image 1](https://m.media-amazon.com/images/I/61bVMVedLKL.jpg)

## Available Options

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

## Frequently Bought Together

- Rome Tech CR1620 CMOS BIOS Battery for HP EliteBook 840 G7 - Backup 3V RTC CR 1620 HP Laptop Battery with 2 Wire Cable
- Mobik CC03XL 53Wh Replacement Laptop Battery for HP ZBook Firefly 14 G7 G8 EliteBook 830 835 840 845 G7 G8 Probook 635 Aero G7 G8 Series HSTNN-DB9Q L77608-2C1 L77608-421 L78555-005 CC03053XL-PL 11.55V

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**Shop now:** [https://www.desertcart.jp/products/578785908-cr1620-cmos-battery-for-hp-elitebook-840-g7](https://www.desertcart.jp/products/578785908-cr1620-cmos-battery-for-hp-elitebook-840-g7)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-23*