--- product_id: 128405116 title: "40V Lithium-ION 4.0 AH Battery | OP4040 - Charger Sold Separately" brand: "ryobi" price: "₩270839" currency: KRW in_stock: true category: "Ryobi" url: https://www.desertcart.kr/products/128405116-40v-lithium-ion-4-0-ah-battery-op4040-charger-sold store_origin: KR region: South Korea --- # 4.0 Ah long-lasting capacity 40V high-voltage power Lightweight 4 lbs for easy handling 40V Lithium-ION 4.0 AH Battery | OP4040 - Charger Sold Separately **Brand:** ryobi **Price:** ₩270839 **Availability:** ✅ In Stock ## Summary > 🔋 Power your productivity, own the outdoors! ## Quick Answers - **What is this?** 40V Lithium-ION 4.0 AH Battery | OP4040 - Charger Sold Separately by ryobi - **How much does it cost?** ₩270839 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/128405116-40v-lithium-ion-4-0-ah-battery-op4040-charger-sold) ## Best For - ryobi enthusiasts ## Why This Product - Trusted ryobi brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted by Pros:** Stens replacement parts are the go-to choice for lawn and landscape professionals demanding peak performance. - • **Extended Runtime:** 4.0 Ah capacity means longer work sessions without constant recharging—get more done, faster. - • **Light as a Feather:** Weighing just 4 pounds, this battery keeps your tools agile and fatigue-free during extended use. - • **Power Through Your Day:** 40V lithium-ion battery delivers consistent, high-voltage energy for all your outdoor power tools. - • **Seamless Compatibility:** Designed for RYOBI tools, this rechargeable battery integrates effortlessly into your existing setup. ## Overview The RYOBI OP4040 40V Lithium-Ion 4.0 Ah battery offers a powerful, lightweight, and rechargeable energy source designed for professional-grade outdoor power tools. With a 4 amp-hour capacity and weighing only 4 pounds, it ensures extended runtime and easy handling. Highly rated by users and favored by lawn and landscape pros, this battery is a reliable upgrade to keep your tools running longer and stronger. ## Description Stens replacement parts have become a favorite among lawn and landscape professionals thanks to exceptional performance. ## Features - Stens replacement parts have become a favorite among lawn and landscape professionals thanks to exceptional performance. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07QYH36TC | | Amperage | 4 A | | Antenna Location | Power Tool | | Battery Capacity | 4 amp_hours | | Battery Cell Type | Lithium Ion | | Battery Weight | 4 pounds | | Best Sellers Rank | #24,555 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #207 in Cordless Tool Battery Packs | | Brand | RYOBI | | Customer Reviews | 4.5 4.5 out of 5 stars (3,561) | | Included Components | item | | Item Dimensions | 6.5 x 4 x 3 inches | | Item Weight | 8 ounces | | Manufacturer | RYOBI | | Model Number | #OP4040A1 | | Number of Batteries | 1 A batteries required. | | Reusability | Rechargeable | | UPC | 046396027146 681920963271 | | Unit Count | 1 Count | | Voltage | 40 volts | | Warranty Description | 30 Day Limited Warranty | ## Product Details - **Battery Capacity:** 4 amp_hours - **Battery Cell Composition:** Lithium Ion - **Brand:** RYOBI - **Number of Batteries:** 1 A batteries required. - **Recommended Uses For Product:** Power Tool ## Images ![40V Lithium-ION 4.0 AH Battery | OP4040 - Charger Sold Separately - Image 1](https://m.media-amazon.com/images/I/61MXv5vgnXL.jpg) ![40V Lithium-ION 4.0 AH Battery | OP4040 - Charger Sold Separately - Image 2](https://m.media-amazon.com/images/I/61rX-KVFEFL.jpg) ![40V Lithium-ION 4.0 AH Battery | OP4040 - Charger Sold Separately - Image 3](https://m.media-amazon.com/images/I/51HvTNLWUKL.jpg) ![40V Lithium-ION 4.0 AH Battery | OP4040 - Charger Sold Separately - Image 4](https://m.media-amazon.com/images/I/61HRcxw7QyL.jpg) ![40V Lithium-ION 4.0 AH Battery | OP4040 - Charger Sold Separately - Image 5](https://m.media-amazon.com/images/I/51T-vXwaQxL.jpg) ## Questions & Answers **Q: What is the warranty on this 40 v?** A: All Ryobi products have a 3 year warranty if you register it when purchased on their Ryobi site. **Q: Will this battery replace the 4026 40v 94wh?** A: It replaced the 4026 40v 95wh 2.6ah. it is the newer more powerful version **Q: What’s the battery length with the mower?** A: My need is no more than 30 minutes. When finished there are still 3 lights lit up on battery. I’ve then switched battery to hedge trimmer and used for additional 39 minutes with still plenty of charge left. **Q: Will this battery last longer than a 2.6 ah high capacity battery?** A: Yes, the battery lasts enough to cut about 5,000 square feet without shutting down. ## Frequently Bought Together - Ryobi 40V 4.0 Ah Lithium-Ion Battery OP4040 - Ryobi 40V Battery and Charger Kit 4.0 Ah Lithium-Ion Battery Set OEM OP4040 + OP403A --- ## 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.kr/products/128405116-40v-lithium-ion-4-0-ah-battery-op4040-charger-sold](https://www.desertcart.kr/products/128405116-40v-lithium-ion-4-0-ah-battery-op4040-charger-sold) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-08-14*