--- product_id: 502239513 title: "21v lithium battery 4.0AH" brand: "shintyool" price: "876 kr" currency: NOK in_stock: true reviews_count: 13 category: "Shintyool" url: https://www.desertcart.no/products/502239513-21v-lithium-battery-4-0ah store_origin: NO region: Norway --- # 4.0 Ah High Capacity 21V Lithium Power Universal 100-240V Charger 21v lithium battery 4.0AH **Brand:** shintyool **Price:** 876 kr **Availability:** ✅ In Stock ## Summary > 🔋 Charge Ahead with Confidence — Power That Keeps You Moving ## Quick Answers - **What is this?** 21v lithium battery 4.0AH by shintyool - **How much does it cost?** 876 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/502239513-21v-lithium-battery-4-0ah) ## Best For - shintyool enthusiasts ## Why This Product - Trusted shintyool brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Charging:** LED indicator and universal charger keep you informed and ready to go. - • **Built-In Safety:** Multi-protect system guards against overload, overheating, and over-discharge. - • **Long-Lasting Energy:** 4.0 Ah capacity ensures extended runtime for uninterrupted productivity. - • **Risk-Free Investment:** Backed by a full refund or replacement guarantee for total peace of mind. - • **Power Meets Compatibility:** Seamlessly fits major power tool brands for ultimate versatility. ## Overview The SHINTYOOL 21V 4.0 Ah Lithium-Ion Battery delivers reliable, high-capacity power compatible with a wide range of major brand cordless tools. Featuring a universal 100-240V charger with LED status indicator and advanced multi-protection safety system, it ensures long-lasting performance and safe operation. Lightweight and rechargeable, this battery is backed by a 1-year warranty and a satisfaction guarantee, making it the smart choice for professionals seeking dependable cordless power. ## Description Buy SHINTYOOL 21v Lithium Battery - 4.0 Ah Battery with Charger Adapter Led Indicator Compatible with Leaf Blower: Battery Chargers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Excellent Quality - Excellent product works better than expected. Quality product, fast deliver from desertcart. The price is way, cost effective from the competitors. Review: SHINTYOOL 21v 4.0 Ah Battery: A Perfect, Powerful Replacement for Off-Brand Tools! - I received the SHINTYOOL 21v Lithium Battery with Charger Adapter (4.0 Ah), and I am genuinely impressed. I took a chance hoping this would be a compatible solution for my slightly older, off-brand 21v cordless leaf blower—and it was a perfect fit! Finding reliable battery replacements for generic or lesser-known tool brands can be a nightmare, but this SHINTYOOL battery snapped into place smoothly, instantly reviving my leaf blower. The 4.0 Ah capacity is a significant upgrade over my original battery, providing a noticeable increase in run time. I was able to clear my entire yard without needing a recharge, which was never possible before. The accompanying charger works quickly and efficiently, and the built-in LED indicator on the battery itself is incredibly useful for quickly gauging the remaining charge without having to plug it into the tool or charger. This battery delivers consistent, strong performance and proves you don't always need to buy the expensive OEM part for quality power. If you have an off-brand 21v tool, give this battery a try—it's a high-quality, high-capacity solution. Pros: Perfect fit and compatibility with generic 21v tools. 4.0 Ah capacity delivers excellent, long-lasting run time. Reliable and fast charging. Clear LED indicator for checking battery life. ## Features - ★ 【Compatible with More 】Our batteries are compatible with some major brands, for power tools bl1860b bl1850 bl1840 bl1850b-2 bl1845 bl1830 bl1820 bl1815 lxt-400 series please feel free to contact us for more model information. - ★【21 Volt Lithium Battery 】Battery voltage: 21v, capacity: 4000ah, type: lithium ion, made of 10 pcs quality lithium ion battery,can provide stable capacity and output. - ★【Charger】Support 100-240v universal standard ac input voltage.1a power adapter,us plug,led indicator to easily see the charging situation. - ★【Multi-Protect Safety System】This battery is equipped with overload protection, overheat protection & over-discharge protection. - ★【Note on Battery】In order to protect the battery, please do not charge more than 6 hours.Note: Please Fully charge the battery before its first use. Please do not charge the battery for overnight since it will badly damage the battery life. - ★【WE’VE GOT YOU COVERED】 Any Non-human Damage Or Any Reason You Are Not Completely Satisfied With Our Product, We Will Immediately Provide You A Full Refund ( Or Replace Your Item). ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BF9DBLC2 | | Amperage | 1 A | | Antenna Location | Power Tool | | Battery Capacity | 4 amp_hours | | Battery Cell Composition | Lithium | | Battery Cell Type | Lithium | | Battery Weight | 1.3 pounds | | Best Sellers Rank | #18,912 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #122 in Cordless Tool Battery Packs | | Brand | SHINTYOOL | | Compatible Phone Models | For ALLOYMAN, Aoben, seesill, EWORK, Inquire to learn more about compatible brands. | | Customer Reviews | 4.4 out of 5 stars 972 Reviews | | Item Weight | 9 ounces | | Manufacturer | SHINTYOOL | | Model Name | 4.0ah Li-ion Battery | | Model Number | 4.0AH | | Number of Batteries | 1 Lithium Ion batteries required. | | Recommended Uses For Product | Power Tool | | Reusability | Rechargeable | | Unit Count | 1 Count | | Voltage | 21 | | Warranty Description | 1 yera | ## Product Details - **Battery Capacity:** 4 amp_hours - **Battery Cell Composition:** Lithium - **Brand:** SHINTYOOL - **Number of Batteries:** 1 Lithium Ion batteries required. - **Recommended Uses For Product:** Power Tool ## Images ![21v lithium battery 4.0AH - Image 1](https://m.media-amazon.com/images/I/61oXd+D0MgL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent Quality *by G***S on October 4, 2026* Excellent product works better than expected. Quality product, fast deliver from Amazon. The price is way, cost effective from the competitors. ### ⭐⭐⭐⭐⭐ SHINTYOOL 21v 4.0 Ah Battery: A Perfect, Powerful Replacement for Off-Brand Tools! *by R***R on October 6, 2025* I received the SHINTYOOL 21v Lithium Battery with Charger Adapter (4.0 Ah), and I am genuinely impressed. I took a chance hoping this would be a compatible solution for my slightly older, off-brand 21v cordless leaf blower—and it was a perfect fit! Finding reliable battery replacements for generic or lesser-known tool brands can be a nightmare, but this SHINTYOOL battery snapped into place smoothly, instantly reviving my leaf blower. The 4.0 Ah capacity is a significant upgrade over my original battery, providing a noticeable increase in run time. I was able to clear my entire yard without needing a recharge, which was never possible before. The accompanying charger works quickly and efficiently, and the built-in LED indicator on the battery itself is incredibly useful for quickly gauging the remaining charge without having to plug it into the tool or charger. This battery delivers consistent, strong performance and proves you don't always need to buy the expensive OEM part for quality power. If you have an off-brand 21v tool, give this battery a try—it's a high-quality, high-capacity solution. Pros: Perfect fit and compatibility with generic 21v tools. 4.0 Ah capacity delivers excellent, long-lasting run time. Reliable and fast charging. Clear LED indicator for checking battery life. ### ⭐⭐⭐⭐⭐ Works great *by A***R on September 9, 2026* Working well using it in backpack sprayer holds a change for days. ## Frequently Bought Together - SHINTYOOL 21v Lithium Battery - 4.0 Ah Battery with Charger Adapter Led Indicator Compatible with Leaf Blower - SHINTYOOL 21V Single Port Rapid Charger Base, Fast Charger for 21V Lithium-Ion Battery (Battery Not Included) --- ## 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.no/products/502239513-21v-lithium-battery-4-0ah](https://www.desertcart.no/products/502239513-21v-lithium-battery-4-0ah) --- *Product available on Desertcart Norway* *Store origin: NO* *Last updated: 2026-10-18*