Best Backpack Sprayer for Your Garden and Lawn – Battery Powered and Pump Sprayers for Fertilizer or Killing Weeds

When shopping for the best backpack weed sprayer or fertilizer applicator, you’ll want a mix of features, longevity, and ease of use — all at an affordable price. While we have focused on products that would be great for gardening and landscaping tasks, they would all work well for other applications too. There’s a variety of models of on the market, which is why we’ve chosen five dependable brands that each have an extensive collection of backpack sprayers available.
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Dry Weight
Max Pressure
Our Top Choice
Solo Professional Piston Backpack Sprayer
Solo has been a pioneer of chemical applicator technology since 1951 as one of the first creators of the motorized backpack sprayer.
High-density polyethylene tank holds most chemicals, operates at pressures of up to 90 PSI, and has fatigue-minimizing features.
Although the piston pump is powerful, some may prefer battery-powered options for large fields.
Piston Pump
14 Pounds
4 Gallon
90 PSI
Manufacturer Limited
Best Value
Chapin 61500 Motorized Backpack Sprayer
Since 1884, Chapin has built a legacy on liquid containers and backpack sprayers.
Nearly two hours of continuous spraying. Wide-mouth tank is easy to fill and use.
Although the range is 25-35 feet, the maximum PSI is only 35-40.
Electric Motor
10.5 Pounds
4 Gallon
35-40 PSI
Lifetime Limited
Petra Battery Powered Backpack Sprayer
Petra Tools is one of the largest manufacturers of backpack sprayers worldwide with dozens of models available for personal or professional use.
Sprays for a longer distance. Features stainless steel wand. has a wide mouth lid. 1-year warranty. Boast the longest lasting lithium battery charge of up to 8 hours.
Lacks extra features for comfort.
Battery-Powered Motor
12 Pounds
4 Gallon
65 PSI
1-Year Warranty
Husqvarna Backpack Pump Sprayers
Husqvarna is a houselhold name when it comes to power tools for professionals and DIY enthusiasts.
No-leak pump for safe use. Used in liquids and powders. Comfort harness.
Pressure a bit too low.
Piston Pump
12 Pounds
4 Gallon
25 PSI
1-Year Warranty
D.B. Smith Field King Backpack Sprayer
D.B. Smith has been a leading innovator in liquid applicator technologies for 125 years.
No-leak internal pump and high-quality seals for maximum chemical resistance.
Unfortunately, it can be quite heavy to carry around when full.
Piston Pump
12.8 Pounds
4 Gallons
150 PSI
1-Year Warranty

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Need a Lawn & Garden Backpack Sprayer?

Now that you’ve learned about the different types of backpack sprayers and some of their most unique features, let’s take a look at the top five brands we’ve chosen to review!
Our Top Choice
The Solo Professional Piston Backpack Sprayer can handle virtually any spraying task with ease. In addition to a wide range of commercial and residential backpack sprayers, Solo is also known for quality handheld sprayers.

Solo 4 Gallon Professional Piston Backpack Sprayer with Four Nozzles

Solo was founded by two engineers that created one of the first motorized backpack sprayers the world had ever seen. By using new engine technology, they designed a sprayer for one “solo” person to use on large fields and farms. Today, their legacy has expanded to include many lines of chemical applicators, from simple piston pumps to motors with longer battery life.

The Solo Professional Piston Backpack Sprayer has a 4-gallon tank designed for disinfectants, fertilizers, herbicides, pesticides, and other formulations for plant protection. The piston pump has a pressure potential of 90 PSI, with a locking shut-off valve to minimize wear and tear. Viton seals in strategic locations keep the wide-mouth, easily-to-fill tank working for years, and the ambidextrous pump handle has a 48” nylon-reinforced hose with four nozzles for application: jet stream, fan spray, adjustable stream, and hollow cone. Ergonomic padded straps keep the large, UV-resistant, high-density polyethylene tank comfortably secured — even for the toughest jobs.
Best Value
Complete with a Black and Decker motor, the Chapin Wide Mouth Backpack Sprayer is perfect for large fields and landscaping jobs. Want a commercial grade model? Add a few bucks and get the Chapin 61900 Backpack Sprayer.

Chapin International 61500 Backpack Sprayer - 4 Gallon Wide Mouth 20V Battery

In 1884 Ralph E. Chapin created a new way to transport kerosene for street lamps. The rest, as they say, is history. The Chapin family of sprayers is extensive, and includes metal Tri-Proxy and stainless steel sprayers, polyethylene sprayers, hand sprayers, dusters, industrial and construction sprayers, cart sprayers, and drum pump sprayers for consumers and commercial use.

The Chapin 4-Gallon Motorized Backpack Sprayer has a 20V lithium ion battery and motor by Black and Decker. It includes a portable charger, and can also be used with other Black and Decker accessories. With 1.75 hours of continuous spraying, you can apply 50 gallons at 35-40 PSI before recharging - that’s a 35-foot range for even the largest fields. The six-inch funnel makes filling the polyethylene tank quick and easy. From the tank, a 48-inch hose connects to the 20-inch wand with a reinforced shut-off switch and three nozzles. The powder-coated steel frame is lightweight, and secured by two deluxe padded shoulder straps.
The Petra Battery Powered Backpack Sprayer is a versatile, easy-to-use, and ready for most types of liquids. Looking for something more budget-friendly? Well, the Petra 4 Gallon Battery Powered Backpack Sprayer is available and comes with as good features as it's expensive counterpart.

Petra Battery Powered Backpack Sprayer - 4 Gal with 6.0AH Ultimate Battery

Petra Tools is a company dedicated to the provision of the best garden and lawn tools. It is a family-run business situated in Chicago, IL. The company has a wide array of garden and lawn tools in its portfolio including backpack sprayers, cart sprayers, mosquito foggers, mist blowers, and so on. Some of their customers include home garden owners, pest control specialists, and large commercial farmers. The company prides itself in offering the best possible products for professional and home use.

The Petra Battery-Powered Sprayer is designed to meet all the spraying needs in home or commercial settings. It comes with both a plastic wand for acid use and a stainless steel wand for use with other chemicals. It has a powerful 6 AH battery, which you can use for up to 8 hours while pumping 200 gallons of liquid on a full charge. That is enough to take you through a full day of work without the need to recharge the battery. The tank has easy to read gallon markers to enable you know exactly how much solution you have and how much is left at whatever time. When you have finished using the sprayer, fold up the wand and store it in the dedicated built-in holder. With this sprayer, you will get a 1-year warranty so that you can derive maximum satisfaction from using it.
The Husqvarna 4 Gallon Backpack Sprayer is ideal for herbicides, pesticides, table powders, and liquid fertilizers. The brand also offer quality a Handheld Sprayer that's perfect for spot treatments.

Husqvarna 4 Gallon Backpack Sprayer with Internal No Leak Pump Design - Other Sizes Available

The Husqvarna Group was established in 1689 and is perhaps the oldest startup in the world. It is a toolmaker with interests in a wide array of industries. Examples of products by the Husqvarna Group include chainsaws, lawnmowers, motorcycles, sprayers, demotion robots, and diamond tools. The company has always striven to make innovative products in live with current industry trends. In a bid to respond to the needs of the current dispensation, Husqvarna is focusing on products that limit carbon emissions.

Now to the Husqvarna Sprayers, 4-Gallon Backpack. We are talking about a sprayer that utilizes an internal pump to ensure no chemicals drip onto your back. You can use this backpack without worrying about getting scorched by harsh chemicals such as acids. It has a state-of-the art harness that feels comfortable on your shoulders and back. This sprayer works well with both liquids and table powders no matter where you need to spray. In short, this works well as both a diaphragm and piston backpack. It is a manual pump with an easy to use handle that you can store either horizontally or vertically. How you store it is up to you. The maximum pressure produced by this sprayer is 150 psi and can be regulated to remain constant until you finish using it.
The Field King Professional No Leak Pump Backpack Sprayer is known for its safe, reliable, and comfy design. Looking for something a little lighter? Check out the D.B Smith 1-Gallon Bleach and Chemical Sprayer!

D.B. Smith Field King Professional No Leak Pump Backpack Sprayer for Killing Weeds in Lawns & Gardens

D.B. Smith made their first compressed air sprayer in 1888. Over the last century, it’s expanded to offer quality pump sprayers, mosquito foggers, and more for personal and professional use. They have a large selection of backpack sprayers for gardening and landscaping, with dozens of piston, diaphragm, and motorized models available backed up by their 1-year limited warranty.

The D.B. Smith Field King Professional Backpack Sprayer has a patented No-Leak piston pump with adjustable pressures of 25 - 150 PSI. Viton gaskets and seals provide safety for users and longevity for internal components, and the 4-gallon polyethylene tank has a 50-inch reinforced hose attached to the 21-inch wand. Four nozzles provide a variety of spray patterns — including the D.B. Smith patented foaming nozzle. Perfect for right and left-handed use, it has a handle for easy carrying, as well as two padded shoulder straps and a belt.

How Do I Choose a Backpack Garden Sprayer?

While handheld chemical sprayers will get the job done for smaller gardens and lawns, if you have a large area to cover, they can be tiresome and heavy to carry. This is where heavy-duty professional chemical sprayers that you wear on your back can be a lifesaver. Both styles can be used for applying fertilizer, organic pest control products and liquid weed killers.

A backpack sprayer can help keep your garden and lawn looking like spring all year round. From flower beds to farm fields, chemical applicators can keep animals and pests away. They usually have a tank, a hose, and a wand with separate spray nozzles, and inside the tank there will be one of three types of pumps.
  • Piston pumps are the simplest, and produce a high PSI for thicker chemicals.
  • Diaphragm pumps have closed-off cylinders that are more resistant to corrosive chemicals over years.
  • Motorized pumps are the easiest to use, but the hardest to clean and replace internally.
So lace up your work boots, grab your gloves, and put on your best face shield while we take you through the different types of backpack sprayers!
A variety of factors affect the price of a backpack sprayer, including features, design, materials, size, and manufacturing quality. Tanks can range from small ½-gallon models to large, 5-gallon tanks.

The price for battery operated backpack sprayers will be higher than manual pump ones, however the convenience factor may be worth the investment — especially if this is a garden tool that you will be using on a regular basis.

Although it may be tempting to buy a cheap backpack sprayer, any container of hazardous chemicals needs to be dependably reinforced.
As any gardener and landscaper will know, it’s important to have different nozzles depending on the task. A single stream can be perfect for large ranges and huge fields, but a gentle mist or spray may be more appropriate for your flowerbeds and leaves.

Hose and wand length can help for hard-to-reach hanging plants, and special features such as a locking valve for easy shut-off can prevent leaks during storage.

Look for extra features such as padded straps, additional belt straps, a handle for carrying, and name-brand seals for longevity.

How To Calibrate A Backpack Sprayer For Even Coverage

Calibrating your sprayer is easy if you know the right way to do it. | Courtesy of UNL Extension
Construction and Design
As with most tools, the beauty is in the details. High-density polyethylene tanks are naturally resistant to corrosion and chemical destruction, and are standard for most backpack sprayers. Tanks are usually designed to fit comfortably and distribute weight evenly over long periods of time, and the cleverest designs have wide or funneled mouth openings for spill-free filling. Hose construction is usually clear polyethylene as well, and wands are normally created with stainless steel, brass, or more polyethylene.
Performance and Ease of Use
When choosing a backpack sprayer, most will require some quick and easy assembly. Double check to make sure you have any necessary tools before arrival. After that, the most important choice is going to be a manual vs. automatic sprayer. Both are convenient and easy to use, although automatic sprayers can help if you have multiple acres of fields to cover without aerial support.

Automatic backpack sprayers operate differently from manual pumps, and have their pros and cons. Larger fields may be easier to spray continuously, but parts, repair, and overall cost may be more expensive. Range is normally predetermined and unalterable, but you simply won’t find a more convenient way to apply pesticides, protective chemicals, and pest repellants over a large surface area.

Manual applicators come in two varieties: diaphragm pumps and piston pumps. In manual sprayers, a separate chamber inside the tank collects liquid and pressurizes it. Manual backpack sprayers usually operate between 25 and 90 PSI — enough for a 35 to 50-foot range. The less complicated design makes repair and replacement of parts easier and less expensive, although it will take more effort to spray larger crops.

Regardless of what type of sprayer you get, for best results you want to choose a time when it is not windy, when lawn or plants are dry and when there is not expected to be any rain for at least 6 hours. And always wear protective gear when using chemicals.

Using Organic Weed Killer with Backpack Weed Sprayer

Today on the farm we'll test some all-natural organic weed killer. | Courtesy of Stoney Ridge Farmer

Get the Best Backpack Sprayer of 2023!

We hope you’ve found a dependable and convenient backpack sprayer — and maybe one or two extra for different-sized jobs! Remember that each of these brands has a variety of options available, from handheld misters to large 10-gallon wheeled containers. Every company we’ve covered is a trustworthy partner for your lawn, home, and garden.

Our Top Choice
Solo Professional Piston Backpack Sprayer
Best Value
Chapin 61500 Motorized Backpack Sprayer
Petra Battery Powered Backpack Sprayer
Husqvarna Backpack Pump Sprayers
D.B. Smith Field King Backpack Sprayer

Backpack Sprayer FAQs

Who Makes The Best Backpack Sprayer?
Several companies are in the business of making backpack sprayers. That’s why it would be difficult for one to decide, exactly who makes the best backpack sprayer. During our research, some of the top brands we came across include Solo, Chapin, Petra, Husqvarna and DB Smith. To learn more about backpack sprayers offered by these brands, read our review.
What Is the Best Backpack Pump Sprayer?
The answer to this question depends on the type of backpack pump you are looking for. If you want a battery-powered device, then the Petra Battery Powered Backpack Sprayer is a good option. This device’s battery can last for up to 8 hours and can be used to pump up to 200 gallons of water.

However, if you want a manual backpack pump, the Husqvarna Sprayers, 4-Gallon Backpack is a great way to go. We’ve done a review for both of these sprayers, as well as several others.
How Long Does the Battery Last for an Electric Backpack Sprayer?
The length of time a fully-charged battery will last varies from one backpack pump to another. For instance, some models with a lithium-ion battery only last a maximum of 1 hour, 45 minutes. However, there are other backpack sprayers with batteries that last longer, some even going to up to 8 - 10 hours. A case in point is the Petra Battery Powered Backpack Sprayer, whose battery lasts up to 8 hours.
What Can I Spray With A Backpack Sprayer?
You can spray virtually anything using a backpack sprayer. While most sprayers are meant for use with insecticides and weed killers as well as liquid fertilizers. Some can spray water sealant. For the latter, you would need a water sprayer equipped with a brass wand.

If you choose to use your backpack sprayer for insecticides and weed killers, you should only use compatible chemicals. Otherwise, you may cause harm to the plants. Also, it is HIGHLY recommended that you use a separate sprayer for the “good stuff” for your plants, like fertilizers, and the “bad stuff” designed to kill.
What is the Best Size of a Backpack Sprayer?
Ultimately, the “best” size depends upon 3 things: how big an area you have to cover, how frequently you want to have to refill it, and most importantly, the amount of weight you want to carry on your back. To give you an idea, a gallon of water weighs a little over 8 pounds.

The size of a backpack sprayer is determined by the amount of liquid it can hold in its tank. For example, a good number of them have 4-gallon capacity, which is adequate for spraying garden plants. Commercial, heavy-duty sprayers can hold 10 gallons. In case of the latter, most people opt for a push sprayer, because that’s a lot of weight.