--- product_id: 578785908 title: "Rome Tech CR1620 CMOS Battery for HP EliteBook 840 G7 | Backup 3V RTC CR 1620 HP Laptop Battery with 2 Wire Cable" brand: "rome tech" price: "¥3506" currency: JPY in_stock: true category: "Rome Tech" url: https://www.desertcart.jp/products/578785908-rome-tech-cr1620-cmos-battery-for-hp-elitebook-840-g7 store_origin: JP region: Japan --- # 225mAh long-lasting capacity 3V Lithium Ion power 2-wire connector for easy install Rome Tech CR1620 CMOS Battery for HP EliteBook 840 G7 | Backup 3V RTC CR 1620 HP Laptop Battery with 2 Wire Cable **Brand:** rome tech **Price:** ¥3506 **Availability:** ✅ In Stock ## Summary > 🔋 Power your EliteBook like a pro — never lose your BIOS mojo! ## Quick Answers - **What is this?** Rome Tech CR1620 CMOS Battery for HP EliteBook 840 G7 | Backup 3V RTC CR 1620 HP Laptop Battery with 2 Wire Cable by rome tech - **How much does it cost?** ¥3506 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-rome-tech-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 - • **Reliable Power Backup:** Stable 3V output ensures your BIOS settings stay intact without interruption - • **Dedicated Support Access:** Responsive customer service ready to assist your installation needs - • **Effortless 10-Minute Swap:** Quick, tool-free CMOS battery replacement for your HP EliteBook 840 G7 - • **Premium Quality Assurance:** High-caliber heat shrink and durable build for extended battery life - • **Precision Fit & Compact Design:** Ultra-small form factor fits seamlessly inside your laptop motherboard ## 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 size with a 2-wire connector, it offers a reliable 225mAh capacity to maintain your BIOS settings and RTC functionality. Easy to install within 10 minutes, this battery ensures long-lasting performance backed by quality materials and dedicated customer support. ## 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 Grams | | Best Sellers Rank | #12,206 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #584 in Laptop Batteries | | Brand | Rome Tech | | Compatible Phone Models | HP EliteBook 840 G7 | | Customer Reviews | 4.0 4.0 out of 5 stars (8) | | Manufacturer | Rome Tech | | Model Name | 22LONGNP1620S | | Number of Batteries | 1 Lithium Ion batteries required. | | Reusability | No | | UPC | 712302255575 | | Unit Count | 1.0 Count | | Voltage | 3 Volts (AC) | | 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 ![Rome Tech CR1620 CMOS Battery for HP EliteBook 840 G7 | Backup 3V RTC CR 1620 HP Laptop Battery with 2 Wire Cable - Image 1](https://m.media-amazon.com/images/I/61bVMVedLKL.jpg) ![Rome Tech CR1620 CMOS Battery for HP EliteBook 840 G7 | Backup 3V RTC CR 1620 HP Laptop Battery with 2 Wire Cable - Image 2](https://m.media-amazon.com/images/I/51LujLp+GvL.jpg) ![Rome Tech CR1620 CMOS Battery for HP EliteBook 840 G7 | Backup 3V RTC CR 1620 HP Laptop Battery with 2 Wire Cable - Image 3](https://m.media-amazon.com/images/I/513kpqZnOML.jpg) ![Rome Tech CR1620 CMOS Battery for HP EliteBook 840 G7 | Backup 3V RTC CR 1620 HP Laptop Battery with 2 Wire Cable - Image 4](https://m.media-amazon.com/images/I/51ikJBRpyHL.jpg) ![Rome Tech CR1620 CMOS Battery for HP EliteBook 840 G7 | Backup 3V RTC CR 1620 HP Laptop Battery with 2 Wire Cable - Image 5](https://m.media-amazon.com/images/I/51HtHdGu9ZL.jpg) ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/578785908-rome-tech-cr1620-cmos-battery-for-hp-elitebook-840-g7](https://www.desertcart.jp/products/578785908-rome-tech-cr1620-cmos-battery-for-hp-elitebook-840-g7) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-21*