--- product_id: 46351124 title: "Duracell Coppertop 9V Battery, 2 Count, Smoke Detector, Long-lasting" brand: "duracell" price: "€ 16.34" currency: EUR in_stock: true reviews_count: 13 category: "Duracell" url: https://www.desertcart.pt/products/46351124-duracell-coppertop-9v-battery-2-count-smoke-detector-long-lasting store_origin: PT region: Portugal --- # 5-Year Storage Life Home Safety Essential 9V Power Punch Duracell Coppertop 9V Battery, 2 Count, Smoke Detector, Long-lasting **Brand:** duracell **Price:** € 16.34 **Availability:** ✅ In Stock ## Summary > 🔥 Power your peace of mind with Duracell Coppertop 9V 🔋 ## Quick Answers - **What is this?** Duracell Coppertop 9V Battery, 2 Count, Smoke Detector, Long-lasting by duracell - **How much does it cost?** € 16.34 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/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 - • **Unmatched 9V Power:** Delivers consistent, reliable energy for critical devices like smoke and CO detectors. - • **Annual Safety Ritual:** Replace yearly to keep your home’s safety systems at peak performance. - • **Trusted by Professionals:** Preferred choice for walkie-talkies, test instruments, and emergency gear. - • **Leak-Resistant Durability:** Engineered to prevent leaks and protect your devices over time. - • **5-Year Freshness Guarantee:** Store with confidence—batteries stay fresh and ready for up to 5 years. ## Overview Duracell Coppertop 9V batteries provide dependable, long-lasting power ideal for smoke detectors, carbon monoxide alarms, and professional devices. With a 5-year storage guarantee and leak-resistant design, they ensure your home safety essentials and critical equipment never run out of juice when it matters most. ## 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. Review: It’s the most reliable and best battery out there - 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. Review: Trusted must haves! - The only battery I use for smoke detectors. I count on their freshness, long lasting, reliability. Recommend ## 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 | | Amperage | 9 A | | Antenna Location | Clock, Radio | | Battery Capacity | 9 | | Battery Cell Composition | Alkaline | | Battery Cell Type | Alkaline | | Best Sellers Rank | #1,936 in Health & Household ( See Top 100 in Health & Household ) #4 in 9V Batteries | | Brand | DURACELL | | Customer Reviews | 4.8 out of 5 stars 9,246 Reviews | | Included Components | BATTERY ALKALINE 9V 2PK | | Item Dimensions | 3.75 x 0.75 x 4.5 inches | | Item Type Name | BATTERY ALKALINE 9V 2PK | | Item Weight | 0.08 kg | | Manufacturer | Duracell Distributing, Inc | | Model Name | Duracell - CopperTop 9V Alkaline Batteries - long lasting, all-purpose 9 Volt battery for household and business | | Model Number | 9Vx2 | | Number of Batteries | 2 AAA batteries required. | | Recommended Uses For Product | Clock, Radio | | Reusability | Single Use | | UPC | 041333216010 | | Unit Count | 2 Count | | Voltage | 9 volts | | Warranty Description | Contact Manufacturer | ## Product Details - **Battery Capacity:** 9 - **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 A***R on 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. ### ⭐⭐⭐⭐⭐ Trusted must haves! *by G***E on June 28, 2026* The only battery I use for smoke detectors. I count on their freshness, long lasting, reliability. Recommend ### ⭐⭐⭐⭐⭐ Great Product *by S***N on August 19, 2026* Duracell batteries are always a good choice. I have been using them for years & never been disappointed. Good product for a good price. ## 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.pt/products/46351124-duracell-coppertop-9v-battery-2-count-smoke-detector-long-lasting](https://www.desertcart.pt/products/46351124-duracell-coppertop-9v-battery-2-count-smoke-detector-long-lasting) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-09*