--- product_id: 712543617 title: "- Battery Powered Backpack Sprayer - 18V Milwaukee Battery Compatible" brand: "m4" price: "HK$5071" currency: HKD in_stock: true category: "M4" url: https://www.desertcart.hk/products/712543617-battery-powered-backpack-sprayer-18v-milwaukee-battery-compatible store_origin: HK region: Hong Kong --- # 4-gallon large capacity tank 100 PSI high-pressure pump Milwaukee 18V battery compatible - Battery Powered Backpack Sprayer - 18V Milwaukee Battery Compatible **Brand:** m4 **Price:** HK$5071 **Availability:** ✅ In Stock ## Summary > 🎯 Spray Smarter, Not Harder — Power, Precision, and Comfort in One Pack! ## Quick Answers - **What is this?** - Battery Powered Backpack Sprayer - 18V Milwaukee Battery Compatible by m4 - **How much does it cost?** HK$5071 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/712543617-battery-powered-backpack-sprayer-18v-milwaukee-battery-compatible) ## Best For - m4 enthusiasts ## Why This Product - Trusted m4 brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Multi-Task Master:** From lawn care to cleaning and staining, one sprayer handles all your professional and DIY needs. - • **Heavy-Duty Durability:** Reinforced hose and stainless-steel wand built to withstand tough outdoor conditions and high pressure. - • **Cordless Power Freedom:** Compatible with Milwaukee 18V batteries for untethered, hassle-free spraying anywhere. - • **Precision Spray Control:** Adjustable flow and 10 versatile nozzles for tailored application on every project. - • **Comfort Meets Efficiency:** XXL padded shoulder straps and ergonomic controls keep you spraying longer without fatigue. ## Overview The MY4SONS M4 Backpack Sprayer is a 4-gallon cordless sprayer compatible with Milwaukee 18V batteries (sold separately), featuring a powerful 100 PSI pump for efficient coverage. Designed with heavy-duty materials, ergonomic straps, and versatile nozzles, it delivers professional-grade performance for lawn care, cleaning, staining, and more—perfect for millennials who demand reliability and freedom in their outdoor tools. ## Description Product description EFFORTLESS SPRAYING WITH LONG-LASTING PERFORMANCE Experience powerful spraying with the MY4SONS M4 4-Gallon Battery-Powered Backpack Sprayer. Designed to make your outdoor tasks easier, this sprayer eliminates the need for constant pumping and cords, offering continuous, efficient operation. Ideal for large gardens, yard care, and tough cleaning jobs, it ensures that every spray is done with precision and ease. With a robust 80 PSI pump and a long-lasting rechargeable battery, the MY4SONS M4 ensures up to 8 hours of spray time or covers over 200 gallons per charge. This allows you to tackle multiple projects without worrying about interruptions or losing power. Its adjustable pressure control provides the flexibility to handle a variety of tasks, from delicate plant care to heavy-duty applications. Built with a durable, corrosion-resistant tank and a reinforced hose, this sprayer is engineered for reliable performance in various outdoor conditions. Whether you're a homeowner or a professional, the MY4SONS M4 is the perfect tool for efficient and hassle-free spraying. CORDLESS MOBILITY FOR UNRESTRICTED USE Enjoy the freedom of cord-free spraying with the MY4SONS M4. Powered by a Milwaukee 18V battery (sold separately), this sprayer offers hassle-free operation, giving you the ability to cover large areas and hard-to-reach spots with ease. No more tangled cords or limited mobility—just effortless performance. 100 PSI PUMP FOR POWERFUL SPRAYING The MY4SONS M4 is equipped with a 100 PSI pump, delivering high pressure for superior coverage and effective spraying. From wide-area watering to targeted pest control, this pump provides reliable performance for both gardens and lawn care, ensuring consistent results every time. SPACIOUS 4.5 GALLON CAPACITY Designed to take on larger projects, the MY4SONS M4 features a 4.5-gallon tank, allowing you to cover expansive areas without constant refills. Ideal for landscapers, homeowners, or anyone tackling large-scale spraying, the ample capacity ensures efficient spraying and reduced downtime. LEAK-PROOF AND DURABLE DESIGN The MY4SONS M4 is built with a leak-proof construction to keep your spraying tasks clean and mess-free. The durable materials and secure seals prevent spills, making it the perfect tool for tackling harsh environments and chemical applications, all while ensuring safe and controlled use. ONE SPRAYER, ENDLESS POSSIBILITIES The MY4SONS M4 4-Gallon Backpack Sprayer is the ultimate tool for tackling a wide variety of tasks, providing unmatched versatility for homeowners, landscapers, and professionals alike. Designed to handle everything from pest control and weed management to lawn care and garden maintenance, this sprayer makes any outdoor project more efficient and effective. But that’s just the beginning—MY4SONS M4 is built for multiple applications, whether you need to paint, de-ice, clean carpets, or perform automotive detailing. Equipped with an easy-fill tank for quick refills, ergonomic straps for all-day comfort, and an adjustable wand for precision spraying, the MY4SONS M4 ensures seamless operation no matter the task. The durable construction allows it to handle tough environments, while the large 4.5-gallon capacity minimizes downtime, letting you focus on your work without constant refills. Whether you're dealing with firefighting, landscaping, or general cleaning, this sprayer offers the reliability and power you need to get the job done quickly and efficiently. It’s the only sprayer you'll need for all your spraying needs, combining ease of use, comfort, and versatility in one durable package. ## Features - COMPATIBLE WITH MILWAUKEE 18V BATTERY: The My 4 Sons M4 4-gallon backpack sprayer is compatible with Milwaukee 18V batteries (not included), offering reliable power for your spraying needs. Equipped with a 100 PSI pump, it provides consistent and efficient performance for a wide range of tasks. The high-pressure system is designed to cover larger areas with ease, making this sprayer ideal for various applications, from lawn care to cleaning projects. - HEAVY-DUTY CONSTRUCTION: The M4 backpack sprayer is designed for durability with a reinforced hose that can withstand high temperatures and pressure. The stainless-steel wand ensures precise application, while the watertight neoprene lid seal prevents leaks, keeping your liquids securely stored. Built to endure regular use, this sprayer is great for a range of tasks requiring consistent and dependable performance. - EASY TO USE AND COMFORTABLE DESIGN: This backpack sprayer features a wide-mouth opening for easy filling and a screen filter to keep debris out. Its on/off and flow control switches are conveniently placed for easy access, allowing you to adjust the flow during use. The XXL shoulder straps provide comfort for both short and long spraying sessions. The battery compartment is simple to access, ensuring smooth setup and an effortless spraying experience. - VERSATILE NOZZLES AND WANDS INCLUDED: The sprayer comes with ten nozzles, including adjustable brass cones and fan nozzles, for a variety of spraying tasks. It also features an extra-long stainless-steel wand with a flexible tip for precise applications in hard-to-reach areas. The one-piece valve handle improves ergonomics and control, making it easy to adjust the flow during use. This wide range of attachments ensures versatility for various projects. - IDEAL FOR A VARIETY OF APPLICATIONS: The My 4 Sons M4 battery-powered backpack sprayer is versatile and can handle a variety of liquids, including cleaners, stains, and sealants. Whether finishing wood, sealing concrete, or cleaning surfaces, this sprayer meets your needs. Ideal for DIY or professional projects, it’s great for lawn care, painting, staining, carpet cleaning, portable showers, equipment maintenance, and more, making it perfect for home, garden, and business use. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0DJPYTPBX | | Best Sellers Rank | #219,445 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #910 in Lawn & Garden Sprayers | | Brand | M4 | | Brand Name | M4 | | Color | Black/White/Green | | Customer Reviews | 4.5 out of 5 stars 2 Reviews | | Global Trade Identification Number | 00850062028098 | | Included Components | Adjustable Wand, Backpack Sprayer | | Item Dimensions W x H | 16"W x 22"H | | Manufacturer | My 4 Sons | | Manufacturer Part Number | Milwaukee with 100 | | Material | Plastic, Specialized Rubber/Elastomer | | Material Type | Plastic, Specialized Rubber/Elastomer | | Maximum Pressure | 100 Pound per Square Inch | | Model Name | M4 | | Model Number | M4 | | Power Source | Battery Powered | | Product Dimensions | 16"W x 22"H | | Recommended Uses For Product | Fertilizer | | Style Name | Knapsack, Compact | | Tank Volume | 4 Gallons | ## Product Details - **Brand:** M4 - **Tank Volume:** 4 Gallons - **Color:** Black/White/Green - **Recommended Uses For Product:** Fertilizer - **Material:** Metal, Plastic, Rubber ## Images ![- Battery Powered Backpack Sprayer - 18V Milwaukee Battery Compatible - Image 1](https://m.media-amazon.com/images/I/71TPUkw7CcL.jpg) ![- Battery Powered Backpack Sprayer - 18V Milwaukee Battery Compatible - Image 2](https://m.media-amazon.com/images/I/51wy0xD9r6L.jpg) ![- Battery Powered Backpack Sprayer - 18V Milwaukee Battery Compatible - Image 3](https://m.media-amazon.com/images/I/51dFqRVTBXL.jpg) ![- Battery Powered Backpack Sprayer - 18V Milwaukee Battery Compatible - Image 4](https://m.media-amazon.com/images/I/5179O82RGwL.jpg) ![- Battery Powered Backpack Sprayer - 18V Milwaukee Battery Compatible - Image 5](https://m.media-amazon.com/images/I/5188OuIaKaL.jpg) ## Available Options This product comes in different **Size** options. --- ## 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.hk/products/712543617-battery-powered-backpack-sprayer-18v-milwaukee-battery-compatible](https://www.desertcart.hk/products/712543617-battery-powered-backpack-sprayer-18v-milwaukee-battery-compatible) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-08-13*