5 Best Battery Powered Backpack Sprayer 2021

Battery-powered backpack sprayer. Using these battery-powered backpack sprayers, you can dispense a dose of weed killer and pest-destroying (pest control) solutions rapidly and easily.

In this article, we have selected the top-rated battery-powered backpack sprayers. We discover the selection from the positive and negative reviews about battery-powered backpack sprayers from the verified purchasers. Read all the comparisons, pros, cons, specifications, ratings, favorites, and reviews of these battery-powered backpack sprayers and you can make a purchasing decision as soon as possible.

Our Quick Overview

  1. Best Overall: 105Ex Effortless Battery Backpack Sprayer
  2. Best For Pest Control: Chapin Backpack Sprayer
  3. Best Budget: Hudson 4 Gallon Battery Powered Backpack Sprayer
  4. Best Battery Life: Petra 4 Gallon Battery Powered Backpack Sprayer
  5. Best For Long Operation: M4 MY4SONS Yard Sprayer

Our editors research, and recommend the best products; you can learn more about our review process here. Bestgardenoutdoor earns a commission through the affiliate links at no additional cost to you.

Overall Score Comparison

Sprayers Pkus
M4 My4Sons
Model  Pressure Price Rating
105Ex Effortless (free shipping available) 40 psi $$$ 9.0
M4 MY4SONS 20 – 60 psi $$$ 9.4
Petra Yard Sprayer 70 psi $$$ 9.0
Chapin Sprayer International 63985 Black & Decker 35 – 40 psi $$$ 7.7
Hudson 13854 Never Pump Bak-Pak 4 Gallon Tank Battery Operated Sprayer 60 psi $$$ 8.4

What to consider when selecting battery powered backpack sprayers

Battery-Powered Backpack Sprayers Reviews

We researched online to put together the top battery-powered backpack sprayers available on the market today. Combining mostly on consumer reviews and product information, we recommend our favorite products.

Best Overall

105Ex Effortless Battery Backpack Sprayer

Backpack Sprayer

Overall score

Easy to use
Battery life

Our tips

After reading all the reviews, we analyze this Sprayer Plus 105ex electric pump sprayer and other comparable units for handling lawn care work. Some reviewers use the battery-powered backpack sprayer to cover 500 square feet to up to 15,000 square feet area.

They used the backpack sprayer and feel comfortable with good even spray. They stated that the battery lasted after 12 gallons of chemical. We read the reviews and this backpack sprayer can spray about 1/3 acre in less than one hour according to many reviewers.

Some reviewers mentioned how the backpack sprayer feels very sturdy and likely to last a long time. They were mostly happy that the battery-powered backpack sprayer unit is very well made and is comfortable on the back.

We think that it is very crucial that the wand nozzle unit puts out an evenly distributed spray pattern consistently during applications. If there is a chance that you get a lawn care project in the Sheep Meadow, New York, you can certainly use this backpack sprayer.

We highly recommend this well-made unit backed by the Sprayer Plus technical support team that is excellent. The majority of customers love this backpack sprayer according to the positive reviews.

Features that we like

  • Lightweight
  • For landscaping professionals
  • Stream spraying
  • Free shipping available
  • Commercial grade lithium-ion battery
  • 40 psi spray


  • The electronic elements are protected from the user
  • Integrated battery
  • The battery displays a strength indicator to indicate the time to charge
  • Lightweight
  • Easy to move


  • Weaker PSI
  • High price point

Positive reviews

“… She has used the battery-powered backpack sprayer several times now, and she really loves it.”

Rating: 10 out of 10

“… I had fun spraying my backyard. Comfortable in the back. The battery lasted through three rounds.”

Rating: 10 out of 10

“… My son works for a pest control company and he is happy with this battery-powered backpack sprayer product. It makes his job so much easier and more efficient!”

Rating: 10 out of 10

Negative reviews

“… I bought this and the battery would not charge.”

Rating: 1 out of 10

“… Battery life was too short. Disappointed for the high price point.”

Rating: 1 out of 10

“… I returned this because the handle kept busting and got rid of it.”

Rating: 1 out of 10
GTIN or UPC 813783023469
Dimension 23.15 x 14.96 x 10.08-inches
Weight 13.55 pounds
Price Above $200 per unit
Pump Pressure 40 PSI

Best For Pest Control

Chapin Backpack Sprayer

Chapin Backpack Sprayer

Overall score

Easy to use
Battery life

Our tips

Our finding is that a few reviewers said that they have the right tools and materials to do the spraying job. Through their experience, this battery-powered backpack sprayer does the job well, and when they test spray with water to check for leaks it went well.

They would not use a hand pump sprayer because the sprayer can hurt the back and hand by re-pumping far too often. Reading its feature we can say that this Chapin battery-powered backpack sprayer is very quiet during the spraying.

Many reviewers also mentioned the 20v battery that still stayed strong after a 45 minutes spraying. If you are having back issues, we recommend filling the tank with only two or three gallons on the full property spray. We would say that this amount is the right balance of weight for lower back issues.

Looking at its weight and size, we can say that the unit is rather bulky. You need to use a table to fill up the sprayer. This method is much easier compared to lugging it off the ground.

According to its manual, it has a nice volume of spray per trigger pull or you can hold down the trigger for continuous spray. You can adjust the nozzle when the pump speeding up or slowing down.

Features that we like

  • Recharge after 50+ gallons of use
  • For Fertilizer, Herbicides, and Pesticides (Pest Control)
  • Evenly spray
  • Steady pressure
  • Double padded back shoulder straps
  • Chest support cinch
  • Triple filtration
  • Even spraying patterns


  • Easy on the budget
  • 3-stage filtration component
  • Lumbar support


  • The straps can slip sometimes
  • Many complaints about durability
  • Battery problems after a while
GTIN or UPC 023883639853
Dimension 14.8 x 8.8 x 22 inches
Weight 9.5 pounds per unit
Price Below $200
Pump Pressure Thirty to forty PSI with a 20-foot maximum horizontal spray stream

Best Budget

Hudson 4 Gallon Battery Powered Backpack Sprayer

Backpack Weed Sprayer

Overall score

Easy to use
Battery life

Our tips

We read the reviews of this Hudson battery-powered backpack sprayer. A few reviews mentioned how happy they are and without any regret purchasing the unit. There were actually many bad reviews about the battery for not charging or bad battery.

Some reviews stated about the dolly handle that works very well to store the wand. They can fill it and wheel it around their land or yard. The spraying process was easy, and the container was not being pressurized.

According to the website, the backpack sprayer has an internal pump that sprays the liquid which means that the user can mix liquid then in the middle of the job, open the lid and add more liquid to it. You do not require to de-pressurize the tank every time.

With a one-gallon backpack sprayer filled with insecticide of your choice, you will not have your back killing you every time you want to exterminate pests in your house. A few reviewers mentioned using the battery sprayer to finish insecticide spraying in the house, yards, and garage in about 2 hours.

We think that it is very efficient and easy to do.

Features that we like

  • Recharge after 600 minutes of use for continuous spraying
  • Price: below $150
  • Steady power source
  • Maximum power of 60 PSI
  • Filter tank to keep debris out
  • Fill the 4-gallon tank without spilling


  • Sprays for more than 9 hours on one charge
  • The spray wand is long
  • 4-inches tank opening to reduce spilling
  • 4 Nozzle System
  • Adjustable (comfortable) padded shoulder straps


  • Heavy
  • Durability issue
GTIN or UPC 029925138544
Dimension 7.66 x 15.75 x 22.65 inches
Weight 8.26 pounds per unit
Price Below $150
Pump Pressure Maximum power of 60 PSI

Best Battery Life Backpack Sprayer

Petra 4 Gallon Battery Powered Backpack Sprayer

Backpack Chemical Sprayer

Overall score

Easy to use
Battery life

Our tips

Our finding is that many reviewers were happy that the Petra 4 battery-powered backpack sprayer works as advertised. They found it easy to put together when the package arrive. All they need to do is connecting the wand and the hose.

Many backpack sprayers that we analyzed, there were many complaints about the leaks or some issue. Fortunately, this sprayer worked flawlessly and without leaks. It comes with o-rings, Teflon tape, and a multitude of spray nozzles.

A few reviews stated that overall the quality is great. You can contact Petra and they will respond, provide courteous, knowledgeable, and help. The technical team will take care of any situation. These facts are based on many reviews.

We think that using the batter sprayer should be a walk in the park, makes weeding or fertilizing easy, convenient, and effortless.

Features that we like

  • Ease of use
  • Maximum power of 70 PSI pressure pump
  • 6 to 9 hours of operation with a single charge
  • For yard work spraying
  • Can control spraying easily
  • Translucent tank with gallon markers


  • Strong and powerful pressure
  • Excellent battery life
  • Easy to use
  • Easy to clean
  • The pressure adjustment is useful and easy to reach
  • Comfortable trigger


  • Heavy
  • Minor complaints about the durability
Dimension 21 x 21 x 15.5 inches
Weight 14.87 pounds
Price Above $150
Pump Pressure Maximum power of 70 PSI pressure pump

Best For Long Operation Yard Sprayer

M4 MY4SONS Yard Sprayer

Yard Sprayer

Overall score

Easy to use
Battery life

Our tips

In all the reviews that we analyzed, some reviewers were disappointed with the quality issues. One of its flaws probably the battery strap that was ripped. Some also complained about the nozzles that leaked at the base of the tank.

Some reviewers stated that the customer service of M4 My4sons is great. One of its features is that it can spray up to 30 feet with the lead-acid battery.

They think this is a great quality product that works efficiently and easy to use. The backpack sprayer puts out the volume and the adjustment for volume works well. They felt it is pretty comfortable due to its well-made shoulder straps.

Many reviewers read the clear and comprehensive instructions to assemble the backpack sprayer easily. The wand is excellent, can adjust the length, and an impressive array of nozzles. The sealed AGM battery is easy to maintain and inexpensive price point.

Features that we like

  • Price: above $200 per unit
  • For yard work, for lawn or garden
  • Can reach 30 feet of spray
  • Battery life indicator
  • 200 gallons of operation
  • Easy to control and variable pressure


  • Long operation (6-8 hours on one charge)
  • Adjustable spray nozzles for optimum results
  • Has multiple spray nozzles
  • Comfortable straps
  • Long battery life
  • Ease of use


  • The straps may loosen
  • The top of the unit may be difficult to clean
GTIN or UPC 635323082978
Dimension 23 x 8 x 16 inches
Weight 14 pounds
Price Above $200 per unit
Pump Pressure Maximum power of 60 PSI pressure pump

How to maintain battery-powered backpack sprayers?

To ensure to achieve a long-lasting sprayer, cleaning after every use is very important to the sprayer.

Once you do a routine cleaning of it completely at the end of the day with a tank cleaner or just clean water, you will sure it will last longer.

Do the lubrication of the o-rings and at least one time in one year. During the colder months, you need to add RV antifreeze or automotive antifreeze to prevent any damage due to cold temperatures.

It is recommended to use automotive antifreeze because it is less corrosive to spray equipment pumps. Charge the battery after every operation. This practice will help prolong the life of the battery.

Remove the battery from the sprayer and place it in a dry location away from pets and children.

When storing the battery for a long time, make sure the battery is around ½ charge. Always store the battery in a dry place. The battery should be changed every one to three months to ensure the long life of the battery.

Common parts/components of battery powered backpack sprayers

  • Lithium-ion
  • Shoulder straps
  • Lithium-ion charging station
  • Lithium-ion batteries
  • An easy to control adjustable conical spray nozzle
  • Fan spray nozzle
  • Misting nozzle
  • Parts bag
  • Spray lance with quick connect
  • Sprayer handle

How to charge and operate the sprayer

The battery charger must complies with AC on the main power supply.

Never do the charging outdoor.

Plug the charging station into a power socket. The indicator light on the charging station should show a green light.

Slide the battery onto the charging station.

The indicator light will turn red when the battery is seated properly onto the charger station.

For yard work, you need to wear protective gloves, protective clothing, protective goggles, and a mask when operating a sprayer. Here is how to operate.

The operation

Make sure you are using a fully charged battery.

Open the battery compartment on the sprayer. Next, slide the battery on to the socket. Last but not least, close the cover.

Check the sprayer for leaks using water first, prior to using any solution mix.

Choose the spray nozzle which best suits your needs. See the instruction manual for spray pattern.

To replace spray head, pull down on the female quick connect coupler. Next, insert a new sprayer head into the quick connect.Inspect carefully if the spray nozzle connection is secure.

To turn on the sprayer by selecting one of two flow rate settings.

When the sprayer is in the “Off” position the sprayer is not running.

See the indicator light. Greenlight means a charged battery. Red light means the battery needs charging.It is recommended to have a spare battery to limit downtime. When one sprayer is in operation, the other battery can be charging.

Point nozzle in a safe direction away from pets and humans. Do not spray against the adverse wind.Press down on the switch assembly on the handle to start the sprayer.

Move-in a constant direction and speed to prevent over-spraying and/or missing a few coverage areas.

How to store the sprayer properly?

  • Remove all liquids from the sprayer.
  • Use a dry place for storage and indoor areas like a storage shed or a workshop.
  • Follow all storage requirements for lithium-ion batteries.

Common problems

Problems Causes Solution
There is a leak from end of spray wand The shut-off valve is damaged or worn Replace the shut-off valve
There is a leak inside the cylinder The cause would be a dirty piston or collar, or damaged piston or collar Clean the piston or collar
Replace worn cylinder
You must replace the piston or collar
There is a leak outside the cylinder The O-ring on cylinder is probably damaged
The O-ring on pressure cylinder is probably damaged
You need to replace the O-ring
The diaphragm pump is leaking The diaphragm pump is damaged
The O-ring on diaphragm housing is damaged
The O-ring on pressure cylinder is damaged
The solution is to replace those O-rings
You are struggling when moving the pump lever The bushing is dirty
No lubrication
After repeated exposure, the collar swollen
The cylinder walls are dirty
Clean the bushing
Lubricate the collar
Replace the collar
Replace or clean the collar or piston
There is no pressure and an insufficient resistance while pumping There is a leak in the seal of the pressure regulator
The piston or the collar is worn
The O-ring of the valve seat is damaged
Replace the seal
You must replace the collar or piston
Replace the valve seat
When the handle is pulled up it forces a kickback The inlet screen at the base of the pressure cylinder is clogged Use a small brush and detergent, and clean the intake screen
You are struggling when doing upward pumping and the tank walls become indent upwards No vent hole
The intake channels are clogged
The vent hole clogged
You need to replace the vented cap
Clean the intake channels
Clean the vent hole

Backpack sprayers power resources

You might want to consider these backpack sprayers:

  1. Best 3-Gallon: KIMO 3-gallon 20-volt (Our rating: 8.8)
  2. Best for Disinfection: Tomahawk 4 Gallon (Our rating: 9.2)
  3. Best for Stray Stream: FlowZone Typhoon 2V Multi-Use 4-Gallon (Our rating: 8.8)
  4. Best for Easy Filling: ENERTWIST 20V (Our rating: 7.4)
  5. Most Powerful: Cardinal 4-gallon (Our rating: 8.8)

5 Best Battery Powered Backpack Sprayer 2021
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