---
product_id: 171576723
title: "Backpack Sprayer - MY4SONS Silver M4 4-Gallon Cordless Battery Powered with Rechargeable Power Supply and 15ft Hose - Liquid Sprayer Backpack - Electric Spray for Lawn, Garden, Ground Cleaning & More"
brand: "m4"
price: "NT$26464"
currency: TWD
in_stock: true
reviews_count: 4
category: "M4"
url: https://www.desertcart.tw/products/171576723-backpack-sprayer-my4sons-silver-m4-4-gallon-cordless-battery-powered
store_origin: TW
region: Taiwan
---

# 4-gallon tank, covers 200+ gallons per charge 8Ah rechargeable battery, 6-8 hrs runtime Adjustable 20-60 PSI pressure dial Backpack Sprayer - MY4SONS Silver M4 4-Gallon Cordless Battery Powered with Rechargeable Power Supply and 15ft Hose - Liquid Sprayer Backpack - Electric Spray for Lawn, Garden, Ground Cleaning & More

**Brand:** m4
**Price:** NT$26464
**Availability:** ✅ In Stock

## Summary

> 🌿 Spray Smarter, Not Harder — Power, Precision, and Comfort in One Backpack!

## Quick Answers

- **What is this?** Backpack Sprayer - MY4SONS Silver M4 4-Gallon Cordless Battery Powered with Rechargeable Power Supply and 15ft Hose - Liquid Sprayer Backpack - Electric Spray for Lawn, Garden, Ground Cleaning & More by m4
- **How much does it cost?** NT$26464 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/171576723-backpack-sprayer-my4sons-silver-m4-4-gallon-cordless-battery-powered)

## 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-Tasking Made Easy:** Perfect for lawn care, garden treatments, cleaning, staining, and more—your all-in-one spraying solution.
- • **Power Through Your Projects:** Cordless 8Ah battery delivers up to 8 hours of uninterrupted spraying—no cords, no limits.
- • **Reach Farther, Spray Smarter:** Includes a 15-foot extension hose and flexible wand tip to conquer hard-to-reach spots with ease.
- • **Built to Last, Designed for Comfort:** Heavy-duty stainless steel wand, reinforced hose, and XXL padded straps for durability and all-day wearability.
- • **Precision Control at Your Fingertips:** Adjustable pressure dial (20-60 PSI) and 10 versatile nozzles for tailored application on every surface.

## Overview

The MY4SONS Silver M4 Backpack Sprayer is a professional-grade, cordless electric sprayer featuring a robust 8Ah rechargeable battery that powers up to 8 hours or 200+ gallons per charge. Its 4-gallon tank, adjustable 20-60 PSI pressure dial, and 10 interchangeable nozzles—including a 15-foot extension hose and stainless steel wand—offer unmatched versatility for lawn, garden, and cleaning tasks. Built with durable materials and ergonomic design, it ensures comfort during extended use, making it ideal for both DIY enthusiasts and professionals seeking efficient, precise spraying performance.

## Description

desertcart.com : Backpack Sprayer - MY4SONS Silver M4 4-Gallon Cordless Battery Powered with Rechargeable Power Supply and 15ft Hose - Liquid Sprayer Backpack - Electric Spray for Lawn, Garden, Ground Cleaning & More : Patio, Lawn & Garden

Review: It works well and seems to be well-made - First of all, this is the only backpack sprayer I have ever used, so I can't compare it to others, quality-wise. And frankly, I didn't ship around, so there may be others just as good at a lower price; I don't know. Having said that, I love this sprayer. So far, I've used it to spray Talstar insecticide around the perimeter of my home, Neem oil on my Sago palms, and Roundup on weeds. It works great. I like the fact that it has a switch for full power, and a rotary knob so you can choose a lower power. Recharging the battery is easy. The sprayer came with several spray nozzles, but I've only used the flexible one and it is very good. Yes, the sprayer is a bit heavy if you fill it with four gallons, but even my petite wife can use it with two gallons in it and she says it makes spraying the Sagos much easier for her. So to sum up: I love using a backpack sprayer in general as opposed to a sprayer jug that you have to carry around. And specifically, this one fill the bill for me in terms of quality and utility. By all means, shop around, but I think the average homeowner will be happy with this particular sprayer.
Review: Nice but quality control problems. - ***Notice my update to this review below***** Received this sprayer yesterday. Have never purchased anything like this before using the cheap ones you pump and carry around. I have two properties that require spraying of something constantly during warmer months. All the reviews got me excited but I have to admit I am a little disappointed. Mostly quality issues. First, the Velcro battery strap was ripped at the left side negating the job the strap has to hold the battery in place. How does something like this ship? Next, upon water testing (everyone should put water in first and test all the nozzles etc.) the unit leaked at the base of the tank where the hose fits in for the nozzle. Investigated and discovered that there was no washer. No Wonder! Perhaps they have their kids putting these things together for shipment. I tried the various spray nozzles and noticed that the ones with more back pressure caused the black plastic wand to leak at the base where it is mounted to the trigger. I tightened this up with my hands and sprayed again and noticed that water was spraying out of the shaft of the black wand. It was streaming out but I could not make out any holes etc. Must be micro splits vertically at the end of the shaft. I switched to the metal wand and this did not happen. Not sure why I got a plastic and metal wand but at a minimum I'm glad for the metal wand. There was also a flexible white hose similar to ones used on a washing machine however I have yet to discover a use for it. Documentation is horrible. It shows components that did not come with my unit and nothing explaining their purpose. I discovered their use by hooking each one up noticing that some created a spray, others a larger spray and then some created a stream. Some spray with two nozzles etc. Lots of choices which is good but better documentation or perhaps a Youtube tutorial is in order. For as many as they have sold, they could have put a Youtube tutorial unboxing, putting together and explaining how all the nozzles work and what jobs they are made for. Would have been nice to see a video showing them dealing with the quality issues on mine.....however I bet they would not publish that. So, I tried to call their support line and got voice mail. I don't leave voice mails because if companies call back, it is always at the worst time. So, I'll try again later to see if I can get a new wand and a new velcro strap to hold the battery in place. All in all I think it is a good tank and pump system however they should offer a Li battery option as it would make it lighter. I'll update after talking to the manufacturer and getting the replacement hardware. ***Update*** After posting this review but before it went public I got a call from the owner who had seen that they missed a call. I went over my issues and we discussed all three of them. He admitted that he had problems with shipments where the battery moved around around if the box was tossed about during freight. He went on to explain that the strap over the battery was really not even needed now since he modified the door housing to make it stronger etc. I agreed with him on that. He agreed to send me a new black wand which we received yesterday. We also discussed more documentation of a video on how to open and put together and use the various nozzles. He was a really nice guy and I could tell he cared and wanted me to be happy. Never once did he mention not putting a negative review which I always appreciate. His main concern was making sure I was happy. We talked for 30 plus minutes about how this product had evolved based on feedback etc. We also talked about battery options and he explained that Li batteries would greatly increase the cost and the weight savings would only be about 2.5 lbs. The main weight in in the products you stick in the tank.

## Features

- RECHARGEABLE BATTERY FOR EXTENDED USE: The My 4 Sons silver M4 4-gallon backpack sprayer is powered by a reliable 8Ah rechargeable battery (included), providing 6-8 hours of use or covering over 200 gallons on a single charge. The adjustable pressure dial allows you to switch from 20 to 60 PSI, offering precise control for various tasks. Efficient and versatile, it’s perfect for garden care, cleaning projects, and larger areas.
- 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, WANDS, AND 15-FOOT EXTENSION HOSE INCLUDED: The sprayer comes with ten nozzles, including adjustable brass cones and fan nozzles, for various tasks. It features an extra-long stainless-steel wand with a flexible tip for precise applications in hard-to-reach areas. The 15-foot extension hose provides greater reach, while the one-piece valve handle enhances ergonomics and control, making it easy to adjust the flow during use for versatile project applications.
- 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 | B07YBMTCBN |
| Batteries | 1 12V batteries required. (included) |
| Best Sellers Rank | #257,802 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,043 in Lawn & Garden Sprayers |
| Brand | M4 |
| Color | Silver |
| Customer Reviews | 4.5 4.5 out of 5 stars (843) |
| Hose Length | 15 Feet |
| Item Weight | 13 pounds |
| Item model number | M4 |
| Manufacturer | M4 |
| Material | Plastic, Stainless Steel |
| Maximum Pressure | 60 Pound per Square Inch |
| Power Source | Battery Powered |
| Style | Adjustable |
| Tank Volume | 200 Gallons |
| UPC | 709388303931 |

## Product Details

- **Brand:** M4
- **Color:** Silver
- **Material:** Plastic, Stainless Steel
- **Style:** Adjustable
- **Tank Volume:** 200 Gallons

## Images

![Backpack Sprayer - MY4SONS Silver M4 4-Gallon Cordless Battery Powered with Rechargeable Power Supply and 15ft Hose - Liquid Sprayer Backpack - Electric Spray for Lawn, Garden, Ground Cleaning & More - Image 1](https://m.media-amazon.com/images/I/51AGMJa-gZL.jpg)
![Backpack Sprayer - MY4SONS Silver M4 4-Gallon Cordless Battery Powered with Rechargeable Power Supply and 15ft Hose - Liquid Sprayer Backpack - Electric Spray for Lawn, Garden, Ground Cleaning & More - Image 2](https://m.media-amazon.com/images/I/51FxYDqIC0L.jpg)
![Backpack Sprayer - MY4SONS Silver M4 4-Gallon Cordless Battery Powered with Rechargeable Power Supply and 15ft Hose - Liquid Sprayer Backpack - Electric Spray for Lawn, Garden, Ground Cleaning & More - Image 3](https://m.media-amazon.com/images/I/51VCW8cUeuL.jpg)
![Backpack Sprayer - MY4SONS Silver M4 4-Gallon Cordless Battery Powered with Rechargeable Power Supply and 15ft Hose - Liquid Sprayer Backpack - Electric Spray for Lawn, Garden, Ground Cleaning & More - Image 4](https://m.media-amazon.com/images/I/51cSHDMe2wL.jpg)
![Backpack Sprayer - MY4SONS Silver M4 4-Gallon Cordless Battery Powered with Rechargeable Power Supply and 15ft Hose - Liquid Sprayer Backpack - Electric Spray for Lawn, Garden, Ground Cleaning & More - Image 5](https://m.media-amazon.com/images/I/51v8qzwSKFL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ It works well and seems to be well-made
*by C***E on April 23, 2018*

First of all, this is the only backpack sprayer I have ever used, so I can't compare it to others, quality-wise. And frankly, I didn't ship around, so there may be others just as good at a lower price; I don't know. Having said that, I love this sprayer. So far, I've used it to spray Talstar insecticide around the perimeter of my home, Neem oil on my Sago palms, and Roundup on weeds. It works great. I like the fact that it has a switch for full power, and a rotary knob so you can choose a lower power. Recharging the battery is easy. The sprayer came with several spray nozzles, but I've only used the flexible one and it is very good. Yes, the sprayer is a bit heavy if you fill it with four gallons, but even my petite wife can use it with two gallons in it and she says it makes spraying the Sagos much easier for her. So to sum up: I love using a backpack sprayer in general as opposed to a sprayer jug that you have to carry around. And specifically, this one fill the bill for me in terms of quality and utility. By all means, shop around, but I think the average homeowner will be happy with this particular sprayer.

### ⭐⭐⭐⭐⭐ Nice but quality control problems.
*by R***E on September 19, 2017*

***Notice my update to this review below***** Received this sprayer yesterday. Have never purchased anything like this before using the cheap ones you pump and carry around. I have two properties that require spraying of something constantly during warmer months. All the reviews got me excited but I have to admit I am a little disappointed. Mostly quality issues. First, the Velcro battery strap was ripped at the left side negating the job the strap has to hold the battery in place. How does something like this ship? Next, upon water testing (everyone should put water in first and test all the nozzles etc.) the unit leaked at the base of the tank where the hose fits in for the nozzle. Investigated and discovered that there was no washer. No Wonder! Perhaps they have their kids putting these things together for shipment. I tried the various spray nozzles and noticed that the ones with more back pressure caused the black plastic wand to leak at the base where it is mounted to the trigger. I tightened this up with my hands and sprayed again and noticed that water was spraying out of the shaft of the black wand. It was streaming out but I could not make out any holes etc. Must be micro splits vertically at the end of the shaft. I switched to the metal wand and this did not happen. Not sure why I got a plastic and metal wand but at a minimum I'm glad for the metal wand. There was also a flexible white hose similar to ones used on a washing machine however I have yet to discover a use for it. Documentation is horrible. It shows components that did not come with my unit and nothing explaining their purpose. I discovered their use by hooking each one up noticing that some created a spray, others a larger spray and then some created a stream. Some spray with two nozzles etc. Lots of choices which is good but better documentation or perhaps a Youtube tutorial is in order. For as many as they have sold, they could have put a Youtube tutorial unboxing, putting together and explaining how all the nozzles work and what jobs they are made for. Would have been nice to see a video showing them dealing with the quality issues on mine.....however I bet they would not publish that. So, I tried to call their support line and got voice mail. I don't leave voice mails because if companies call back, it is always at the worst time. So, I'll try again later to see if I can get a new wand and a new velcro strap to hold the battery in place. All in all I think it is a good tank and pump system however they should offer a Li battery option as it would make it lighter. I'll update after talking to the manufacturer and getting the replacement hardware. ***Update*** After posting this review but before it went public I got a call from the owner who had seen that they missed a call. I went over my issues and we discussed all three of them. He admitted that he had problems with shipments where the battery moved around around if the box was tossed about during freight. He went on to explain that the strap over the battery was really not even needed now since he modified the door housing to make it stronger etc. I agreed with him on that. He agreed to send me a new black wand which we received yesterday. We also discussed more documentation of a video on how to open and put together and use the various nozzles. He was a really nice guy and I could tell he cared and wanted me to be happy. Never once did he mention not putting a negative review which I always appreciate. His main concern was making sure I was happy. We talked for 30 plus minutes about how this product had evolved based on feedback etc. We also talked about battery options and he explained that Li batteries would greatly increase the cost and the weight savings would only be about 2.5 lbs. The main weight in in the products you stick in the tank.

### ⭐⭐⭐⭐⭐ Great Attention to Detail and Quality Product!
*by V***Y on April 1, 2018*

I Ordered my MY4SONS M4 4-Gallon Sprayer Sunday and received it today (Saturday UPS) coming from California to Ohio. The package was packed very nice and everything was labeled with Great Instructions. The Quality AND ATTENTION TO DETAIL IS AWESOME! The battery was fully charged and ready to use. I will be using the Pistol Sprayer most of the time so I installed it directly to the hose and was using it within 20 minutes. I will be using this unit mostly for spraying lawn chemicals for weeds and fertilizer. The Cart is Great Quality as well. Very light weight strong aluminum with big wheels that will work on any surface. It has very nice yellow elastic straps the connect the unit to the cart quickly. For a Test I sprayed 4 Gallons of water through it to wash the drive off. I decided to wear it on my back to test the weight with 4 gallons and it didn't feel any heavier than my backpack yard blower. I had the pressure turned up about 3/4 way and the spray traveled at least 20 feet with very good velocity. After further inspection I noticed the black shoulder strap adjustment pieces were made of steel instead of plastic which will hold up much better. There are so many accessories to choose from. The Black Storage Bag is very nice quality as well. I'm so impressed with this unit for both Quality and Price. Thank You for Engineering a Great Product!

## Frequently Bought Together

- MY4SONS M4 Cordless Battery Powered Backpack Sprayer - Includes Battery & Charger, Stainless Steel Adjustable Nozzles, Ideal for Lawn, Garden & Multi-Purpose Use - Silver, 4 Gallon - 15ft Hose
- Southern Ag Surfactant for Herbicides Non-Ionic, 16oz, 1 Pint
- Liquid Harvest Lazer Blue Concentrated Spray Pattern Indicator 8 Ounces Perfect Weed Dye, Herbicide Fertilizer Marking Turf Mark and Marker

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-03-17*