--- product_id: 46351124 title: "Duracell Coppertop 9V Battery, 2 Count, Smoke Detector, Long-lasting" brand: "duracell" price: "S$21" currency: SGD in_stock: true reviews_count: 13 url: https://www.desertcart.sg/products/46351124-duracell-coppertop-9v-battery-2-count-smoke-detector-long-lasting store_origin: SG region: Singapore --- # Long-lasting power for critical devices Essential for home safety 5-year storage life Duracell Coppertop 9V Battery, 2 Count, Smoke Detector, Long-lasting **Brand:** duracell **Price:** S$21 **Availability:** ✅ In Stock ## Summary > 🔋 Power your peace of mind with Duracell Coppertop 9V — always ready, always reliable. ## Quick Answers - **What is this?** Duracell Coppertop 9V Battery, 2 Count, Smoke Detector, Long-lasting by duracell - **How much does it cost?** S$21 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/46351124-duracell-coppertop-9v-battery-2-count-smoke-detector-long-lasting) ## Best For - duracell enthusiasts ## Why This Product - Trusted duracell brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted Power for Safety:** The go-to energy source for smoke & CO detectors protecting your home. - • **Duracell Quality Assurance:** Backed by a defect-free guarantee trusted by professionals and families alike. - • **Annual Replacement Reminder:** Stay ahead of safety checks with a battery you can count on every year. - • **Unmatched 5-Year Shelf Life:** Keep batteries fresh and ready for years—no last-minute panic. - • **Versatile Professional Grade:** Reliable juice for walkie-talkies, test instruments, and creative gear. ## Overview Duracell Coppertop 9V batteries deliver dependable, long-lasting alkaline power with a 5-year storage guarantee. Ideal for smoke detectors, carbon monoxide alarms, and professional devices, these batteries ensure your home safety and critical equipment never run out of juice. Trusted by millions, Duracell combines quality assurance with versatile performance in a convenient 2-pack. ## Description Replace your smoke detector battery once a year. Make it Duracell. Duracell Coppertop 9V alkaline batteries are trusted in smoke detectors and carbon monoxide detectors across American homes—the devices that protect your family when it matters most. Guaranteed for 5 years in storage. Also essential for walkie-talkies, guitar effect pedals, multimeters, and professional test equipment. ## Features - HOME SAFETY ESSENTIAL: The go-to battery for smoke detectors, carbon monoxide detectors, security sensors, alarm systems, and emergency devices. Replace annually—always have Duracell 9V ready. - 5-YEAR STORAGE GUARANTEE: Duracell Coppertop 9V batteries are guaranteed to last 5 years in storage. Always have a fresh battery ready for your annual smoke detector check. - PROFESSIONAL-GRADE RELIABILITY: Also powers walkie-talkies, guitar effect pedals, multimeters, professional test instruments, and AED trainers—where reliable power isn't negotiable. - QUALITY ASSURANCE: Every Duracell battery is guaranteed against defects in material and workmanship. The brand trusted by those who take safety seriously. - ANNUAL REMINDER PACK: Whether you need 1 or 4, stock enough for every smoke detector in your home. Test them twice a year. Replace with Duracell every year. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B00000JHQG | | Batteries | 2 AAA batteries required. | | Best Sellers Rank | #7 in 9V Batteries | | Date First Available | November 2, 2001 | | Item Model Number | 9Vx2 | | Manufacturer | Duracell Distributing, Inc | | National Stock Number | 6135-00-900-2139 | | Product Dimensions | 3.75 x 0.75 x 4.5 inches; 2.82 ounces | ## Product Details - **Battery Capacity:** 9 Volts - **Battery Cell Composition:** Alkaline - **Brand:** DURACELL - **Number of Batteries:** 2 AAA batteries required. - **Recommended Uses For Product:** Clock, Radio ## Images ![Duracell Coppertop 9V Battery, 2 Count, Smoke Detector, Long-lasting - Image 1](https://m.media-amazon.com/images/I/51KVJMilvwL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: When is the expiration date on these items?** A: Usually a 2 year lifespan from the date of manufacture. I have always had good luck with Duracell lasting the longest, more than the bunny claims! **Q: trying to replace 9 v battery in radio #8522 and NSi poor eyesight number may be off Can you help to correct numbers?** A: No **Q: Are these MN1604 batteries? Or equivalent?** A: i honestly don't know battery models. they're the current "coppertop battery" that cost a fortune in stores now. on the amazon site [click the photo of the batteries] and many questions answered/lots of info. regards. ## Customer Reviews ### ⭐⭐⭐⭐⭐ It’s the most reliable and best battery out there *by on Reviewed in the United States May 4, 2026* This is an essential item that all of the vast majority will need and use at some point in time. Personally, I have found that the battery life is very good and overall value for the money is what had me purchase this particular battery. I haven’t experienced any issues with leakage nor concerns with compatibility. The size is correct for my current usage and yes it’s portable. This still remains the best battery on the market. ### ⭐⭐⭐⭐⭐ Reliable 9V Batteries for Smoke Detectors and Household Electronics *by on Reviewed in the United States May 27, 2026* These Duracell Coppertop 9V batteries have been dependable for the kinds of devices where reliability matters most, especially smoke detectors, testing equipment, and household electronics that aren’t used constantly but absolutely need to work when called upon. The batteries arrived fully charged and ready to use, with no corrosion or packaging issues.One thing I consistently appreciate with Duracell batteries is shelf-life confidence. I’ve had too many cheaper batteries either drain prematurely or leak during storage, particularly with 9V formats used in safety-related devices. These have maintained stable performance and give me more confidence for long-term household use.The two-pack is also practical because many homes have multiple devices requiring 9V batteries at the same time. For anyone replacing batteries in smoke alarms, detectors, or other important household electronics, these are a reliable and straightforward choice. ### ⭐⭐⭐⭐⭐ They're Duracell. Is there any other? *by on Reviewed in the United States June 22, 2026* They're Duracell and they're batteries so, they work great! ## Frequently Bought Together - Duracell Coppertop 9V Battery, 2 Count Pack, 9-Volt Battery with Long-lasting Power, All-Purpose Alkaline 9V Battery for Household and Office Devices - Duracell Coppertop AA Batteries with Power Boost Ingredients, 24 Count Pack Double A Battery with Long-lasting Power, Alkaline AA Battery for Household and Office Devices - Duracell Coppertop AAA Batteries with Power Boost Ingredients, 24 Count Pack Triple A Battery with Long-Lasting Power, Alkaline AAA Battery for Household and Office Devices --- ## 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.sg/products/46351124-duracell-coppertop-9v-battery-2-count-smoke-detector-long-lasting](https://www.desertcart.sg/products/46351124-duracell-coppertop-9v-battery-2-count-smoke-detector-long-lasting) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-08-18*