--- product_id: 1699860 title: "Enersys (Hawker) Cyclon 0810-0004 D-Cell 2 Volt/2.5 Amp Hour Sealed Lead Acid Battery" brand: "enersys" price: "591 kr" currency: NOK in_stock: true reviews_count: 8 category: "Enersys" url: https://www.desertcart.no/products/1699860-enersys-hawker-cyclon-0810-0004-d-cell-2-volt-2 store_origin: NO region: Norway --- # 10-year float life at 25Β°C 2.5 Ah high power density Up to 300 full charge cycles Enersys (Hawker) Cyclon 0810-0004 D-Cell 2 Volt/2.5 Amp Hour Sealed Lead Acid Battery **Brand:** enersys **Price:** 591 kr **Availability:** βœ… In Stock ## Summary > πŸ”‹ Power your future with confidence β€” the battery that outlasts and outperforms. ## Quick Answers - **What is this?** Enersys (Hawker) Cyclon 0810-0004 D-Cell 2 Volt/2.5 Amp Hour Sealed Lead Acid Battery by enersys - **How much does it cost?** 591 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/1699860-enersys-hawker-cyclon-0810-0004-d-cell-2-volt-2) ## Best For - enersys enthusiasts ## Why This Product - Trusted enersys brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Safe & Versatile:** Minimal to zero gassing means safe installation in offices, hospitals, aircraft cabins, and other human-occupied spaces. - β€’ **Endurance Champion:** Experience up to 50-200% longer cycle life than typical lead batteriesβ€”up to 300 full cycles at 100% depth of discharge. - β€’ **Decade-long Reliability:** Designed for a 10-year float life at 25Β°C, ensuring consistent standby power when you need it most. - β€’ **Power-packed Efficiency:** Maximize your energy budget with industry-leading power density per unit weight. - β€’ **Stable Voltage Delivery:** Enjoy smooth, low-resistance voltage output that rivals premium Nickel Cadmium batteries for sensitive electronics. ## Overview The Enersys Cyclon 0810-0004 is a sealed pure lead-tin 2V, 2.5Ah battery engineered for high power density, exceptional cycle life (up to 300 cycles), and a 10-year float life at 25Β°C. Its low internal resistance ensures stable voltage delivery, while minimal gassing makes it safe for sensitive environments like offices and hospitals. Ideal for UPS, emergency lighting, and precision electronics, this rechargeable battery combines durability with reliable performance. ## Description A 2 volt 2.5 Ah pure lead sealed lead acid battery used in general applications such as emergency lighting UPS systems electronic equipment etc. Review: … - Works as expected Review: Great batteries for the clock drive in your telescope - This is not for everyone but if you have a Celestron telescope like I do you will need these batteries for the clock motor. They are a but hard to find but here they are. The seem to last a very long time. ## Features - Power density - Per unit weight, the power provided by pure lead-tin products offers the greatest high-rate power density for your energy dollar. CYCLON's greater volumetric power allows engineers to consider more energy-supporting features. - Cycle life - Compared to competitive lead products (offering up to 200 full cycles), pure lead-tin batteries provide 50% to 200% greater full cycle capability. CYCLON product will deliver up to 300 cycles (100% DOD, C/5). - Float life - Conventional sealed-lead batteries vary greatly in specified standby life: from three to six years at 20oC, C/20. CYCLON Single Cells, however, offer a ten-year design life at 25oC, C/5, to 80% of rated capacity. - High stable voltage delivery - The high stable voltage delivery of a pure lead-tin battery results from its low internal resistance. The flat discharge voltage profile of our batteries, similar to Nickel Cadmium. - Safety - Since CYCLON Single Cells and Monoblocs emit minimal to no gassing under normal charging conditions they are safe for installation in offices, aircraft cabins, hospitals or any other environment occupied by human beings. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0002ILK86 | | Amperage | 2.5 A | | Antenna Location | UPS | | Battery Capacity | 2.5 amp_hours | | Battery Cell Composition | Sealed Lead Acid | | Battery Cell Type | Sealed Lead Acid | | Battery Weight | 16 ounces | | Best Sellers Rank | #835,394 in Automotive ( See Top 100 in Automotive ) #1,269 in Automotive Replacement Batteries | | Brand | Enersys | | Customer Reviews | 4.7 out of 5 stars 82 Reviews | | Item Dimensions | 1.35 x 1.35 x 2.68 inches | | Item Weight | 6.4 ounces | | Manufacturer | Enersys | | Model Name | Cyclon 810 4 | | Model Number | 0810-0004 | | Number of Batteries | 1 Product Specific batteries required. | | Recommended Uses For Product | UPS | | Reusability | Rechargeable | | UPC | 635241000016 | | Unit Count | 1 Count | | Voltage | 2 | ## Product Details - **Battery Capacity:** 2.5 amp_hours - **Battery Cell Composition:** Sealed Lead Acid - **Brand:** Enersys - **Number of Batteries:** 1 Product Specific batteries required. - **Recommended Uses For Product:** UPS ## Images ![Enersys (Hawker) Cyclon 0810-0004 D-Cell 2 Volt/2.5 Amp Hour Sealed Lead Acid Battery - Image 1](https://m.media-amazon.com/images/I/61RQ0zsVVDL.jpg) ## Questions & Answers **Q: what would be the price for amount to 800 units? thank you** A: On a quantity of 800 pcs the price is $8.50 each plus shipping. These batteries are in stock. https://www.amazon.com/Enersys-Hawker-Cyclon-0810-0004-Battery/dp/B0002ILK86/ref=sr_1_1?m=A2U296R8AN80PO&s=merchant-items&ie=UTF8&qid=1476725273&sr=1-1&refinements=p_4%3AEnersys **Q: I'd like to order 2 of these - can you please combine the shipping cost?** A: Shipping costs will vary between sellers. If you buy two of these batteries from us, the shipping should automatically be combined appropriately. As of this writing, 9/2/2015, the shipping for two would be $8.93 for shipping to the inner 48 states **Q: What is the shelf life for these batteries?** A: While a reliable answer to this question should come from the supplier or the manufacturer I can assure you that I have two of these batteries in an operating rechargeable flashlight since 1983 and two others in another flashlight since 2014 (bought new from Amazon) and they are all functioning splendidly holding their charges fully for months on end and accepting full charges with no signs of weakening. **Q: I want to use these in a waterproofed D battery holder - the kind with the springs. Has anyone done this? If so what was your method?** A: I haven't but with the spade terminals on top you could get connectors from like Radio Shack and remove the spring and contact plate from your battery holder and solder the new wires to them with the crimp connectors. Multiple battery's could be a room issue allowing for some space between batteries for the new terminals and something non conductive or electrical tape to insulate the terminals between batteries while connecting in series or what ever it needs. I think the bottoms are plastic so might not be an issue but good measure. Shouldn't be hard if there is space and later replacement would be an easy unplug and replace. ## Customer Reviews ### ⭐⭐⭐⭐⭐ … *by J***. on September 5, 2026* Works as expected ### ⭐⭐⭐⭐⭐ Great batteries for the clock drive in your telescope *by M***. on July 31, 2025* This is not for everyone but if you have a Celestron telescope like I do you will need these batteries for the clock motor. They are a but hard to find but here they are. The seem to last a very long time. ### ⭐⭐⭐⭐⭐ Replacement for worn out batteries in a Quantum remote camera flash power pack *by A***B on October 30, 2013* These are standard batteries in a Quantum flash power pack I have had for about15 years or more. when ever they get worn out (every 4-5 years) I just get these and replace them. This saves a huge amount of money by doing it myself rather than sending back to the company for them do it. It is just a simple unplug and plug in swap. These have plenty of power and don't have a memory or over charge problem so can leave plugged in ready to go. ## Frequently Bought Together - Enersys (Hawker) Cyclon 0810-0004 D-Cell 2 Volt/2.5 Amp Hour Sealed Lead Acid Battery - Zeglavi 12V 1300mA Sealed Lead Acid (SLA) Battery Charger with Short Circuit Protection - ML7-12 - 12 VOLT 7.2 AH SLA BATTERY - Mighty Max Battery brand product, black --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.no/products/1699860-enersys-hawker-cyclon-0810-0004-d-cell-2-volt-2](https://www.desertcart.no/products/1699860-enersys-hawker-cyclon-0810-0004-d-cell-2-volt-2) --- *Product available on Desertcart Norway* *Store origin: NO* *Last updated: 2026-09-19*