--- product_id: 486681759 title: "(2-Pack) 3.6V 1800mAh AA Ni-MH Battery Replacement for Craftsman 73904 Flashlight Emergency Exit Light Unitech AA1800mAh OSI OSA-343 KTK KIK AA1400mAh" brand: "lunggwey" price: "€ 41.39" currency: EUR in_stock: true reviews_count: 8 url: https://www.desertcart.gr/products/486681759-2-pack-3-6v-1800mah-aa-ni-mh-battery-replacement store_origin: GR region: Greece --- # 1800mAh long-lasting capacity 3.6V high voltage power 8-inch pre-wired connector (2-Pack) 3.6V 1800mAh AA Ni-MH Battery Replacement for Craftsman 73904 Flashlight Emergency Exit Light Unitech AA1800mAh OSI OSA-343 KTK KIK AA1400mAh **Brand:** lunggwey **Price:** € 41.39 **Availability:** ✅ In Stock ## Summary > 🔋 Stay Powered, Stay Prepared: The Backup Battery Your Exit Signs Deserve ## Quick Answers - **What is this?** (2-Pack) 3.6V 1800mAh AA Ni-MH Battery Replacement for Craftsman 73904 Flashlight Emergency Exit Light Unitech AA1800mAh OSI OSA-343 KTK KIK AA1400mAh by lunggwey - **How much does it cost?** € 41.39 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/486681759-2-pack-3-6v-1800mah-aa-ni-mh-battery-replacement) ## Best For - lunggwey enthusiasts ## Why This Product - Trusted lunggwey brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Cost-Saving Replacement:** Avoid expensive full-unit replacements—upgrade your emergency lighting affordably - • **Plug & Play Convenience:** Comes with 203mm (8 in) wire leads and correct polarity connector for hassle-free installation - • **Universal Compatibility:** Seamlessly replaces multiple models including Craftsman 73904 and Unitech AA1800mAh - • **Extended Runtime, Less Downtime:** High-capacity 1800mAh cells deliver reliable, long-lasting backup power - • **Power Up Your Emergency Lighting:** 3.6V Ni-MH battery designed specifically for LED flashlights and exit lights ## Overview This 2-pack of 3.6V 1800mAh Ni-MH AA batteries is engineered for emergency and exit lighting systems, offering a high-capacity, reliable power source with easy installation via pre-attached 8-inch wire leads. Compatible with multiple popular models, it provides a cost-effective, long-lasting replacement solution trusted by professionals. ## Description Buy Lunggwey (2-Pack) 3.6V 1800mAh AA Ni-MH Battery Replacement for Craftsman 73904 Flashlight Emergency Exit Light Unitech AA1800mAh OSI OSA-343 KTK KIK AA1400mAh: AA - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Great Find - Man, these worked great and saved me $90 from having to purchase a new Exit light. Glad I was able to find them. It wasn’t easy to find. Review: Fit&function - My craftsman light is still usable ## Features - BUILT FOR LIGHTING DEVICES – 3.6V 1800mAh Ni-MH battery compatible with LED flashlights and emergency/exit light systems - REPLACES MULTIPLE MODELS – Compatible with lower capacity 3.6V 1400mAh and 1800mAh Ni-MH packs - READY TO INSTALL – Includes 203 mm (8 in) wire leads with correct connector and polarity - HIGH-CAPACITY BACKUP POWER – Offers long-lasting performance for commercial lighting and battery backup units - COMPATIBLE MODELS – Craftsman 73904 Unitech AA1800mAh OSI OSA-343 KTK KIK AA1400mAh ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B17LSP3C | | Amperage | 3.6 Amps | | Antenna Location | Emergency | | Battery Capacity | 1800 Milliampere Hour (mAh) | | Battery Cell Composition | NiMH | | Battery Cell Type | NiMH | | Battery Weight | 80 Grams | | Best Sellers Rank | #364,652 in Health & Household ( See Top 100 in Health & Household ) #968 in AA Batteries | | Brand | Lunggwey | | Compatible Phone Models | Craftsman 73904 Unitech AA1800mAh OSI OSA-343 OSA343 KTK KIK AA1400mAh | | Customer Reviews | 4.8 out of 5 stars 34 Reviews | | Manufacturer | elxjar | | Number of Batteries | 2 Product Specific batteries required. (included) | | Recommended Uses For Product | Emergency | | Reusability | Rechargeable | | UPC | 789844981859 | | Unit Count | 2.0 Count | | Voltage | 3.6 Volts | | Warranty Description | 30 Days money back guarantee & 24 months warranty | ## Product Details - **Battery Capacity:** 1800 Milliampere Hour (mAh) - **Battery Cell Composition:** NiMH - **Brand:** Lunggwey - **Number of Batteries:** 2 Product Specific batteries required. (included) - **Recommended Uses For Product:** Emergency ## Images ![(2-Pack) 3.6V 1800mAh AA Ni-MH Battery Replacement for Craftsman 73904 Flashlight Emergency Exit Light Unitech AA1800mAh OSI OSA-343 KTK KIK AA1400mAh - Image 1](https://m.media-amazon.com/images/I/61dThOJRJSL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Find *by K***O on December 31, 2025* Man, these worked great and saved me $90 from having to purchase a new Exit light. Glad I was able to find them. It wasn’t easy to find. ### ⭐⭐⭐⭐⭐ Fit&function *by B***Y on December 1, 2025* My craftsman light is still usable ### ⭐⭐⭐⭐ Not a “drop-in” installation. *by G***8 on January 18, 2026* I’m happy with the purchase, and would definitely do it again, but it is not a “drop in” installation. These batteries are slightly longer than the factory originals, and the polarity of the plug-in cord is reversed so the wire leads must be reversed in the plug (requires a pointed tool for removal), and there are 2-3 plastic “skirts” that must be removed from the handle of the flashlight to accommodate the battery pack. There are some excellent YouTube videos showing the process. ## Frequently Bought Together - Lunggwey (2-Pack) 3.6V 1800mAh AA Ni-MH Battery, Replacement for Emergency/Exit Light 73904 Craftsman LED Flashlight, Compatible with Unitech Solar Light AA1800mAh, OSI OSA-343 / KTK KIK AA1400mAh - (5-Pack) 3.6V 900mAh Ni-CD AA Exit Sign Emergency Light Battery, Replacement Battery for Exitronix 10010037, Max Power B2-0031 MH468886, Unitech LEDR-1 6200RP, Dantona CUSTOM-318 OSA230, Lowes 253799 - BBAT0043A Unitech BAT9.6V700 AA900MAH 9.6V ELB-B003 Lithonia ELB-B004 9.6v 900mAh Ni-CD Battery Pack Replacement for Exit Sign Emergency Light Fire Batteryhawk, LLC --- ## 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.gr/products/486681759-2-pack-3-6v-1800mah-aa-ni-mh-battery-replacement](https://www.desertcart.gr/products/486681759-2-pack-3-6v-1800mah-aa-ni-mh-battery-replacement) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-05-30*