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4-Gallon 40-volt Battery Operated Plastic Backpack Sprayer with Adjustable Spray Pattern

Ratings & Reviews for Kobalt 4-Gallon 40-volt Battery Operated Plastic Backpack Sprayer with Adjustable Spray Pattern

4.0
1842
Review
 4 out of 5
1842 Reviews


73% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The cordless lawn mower offers a quiet operation and lightweight design, making it easy to use. It provides sufficient power and battery life for small to medium-sized yards. However, some users report issues with the battery life not lasting as long as expected, especially when mowing taller or thicker grass. A few customers have also experienced mechanical failures like wheels falling off or the mower stopping unexpectedly.

Customer review summary generated by AI, including incentivized reviews.
1842 Customer Reviews

Leaks!!!

Would Not Recommend

Leaks right after I was given this sprayer last year due to design of the tank and how its held onto the metal frame with crews that interject into the tank itself. LEAKS!!!! Unable to return with out a receipt (gift) so this warranty is useless.

April 25, 2026
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Response from Kobalt Team

Hello ddavis7426,
We understand how frustrating it is to deal with leaking during use, especially on a newer product. This backpack sprayer is d...

Kobalt TeamApril 28, 2026

SunriseGlobal-Kobalt

Great Sprayer

Would Recommend

Holds four gallons, comes with several nozzles of varying spray patterns, with a long battery life. Charges quickly too. You will never use a pump sprayer again. No comparison.

March 27, 2026
Verified Purchaser
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Great deal

Would Recommend

This one works great and had several nozzles for different applications. I highly recommend this model. I bought the hand held sprayer and it was total junk. 1st time I used it it broke in one of the lock down points. Sisters did the exact same thing.

December 5, 2025
Verified Purchaser
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used once then leaks everywhere

Would Not Recommend

used once and when we went back to use the next time there were leaks everywhere. Hopefully kobalt fixes this issue on newer models. I see they went to an 80v battery. the battery was not the problem. it lasted forever when used with the sprayer.

September 16, 2025
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Response from Kobalt Team

Hello Hilary. Thank you for your review. It is unfortunate that you have experienced this issue. We ask you please give us a call at 1-888-3KOBALT (...

Kobalt TeamSeptember 17, 2025

SunriseGlobal-Kobalt

Worked one time.

Would Not Recommend

Purchase in April, used it or the first time in June. Tried to use it again in August but it wouldn't work. Will not attempt to power up. Battery is at full charge. Never had a problem with any of my other Kobalt accessories.

September 5, 2025
Verified Purchaser
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Response from Kobalt Team

Hello Shannon. We are sorry to hear that the unit has not fully met your expectations, and you have experienced a few issues. For troubleshooting and...

Kobalt TeamSeptember 5, 2025

SunriseGlobal-Kobalt

Tank Leaks

Would Not Recommend

In general I love all my Kobalt tools but this 4 gallon tank sprayer barely made it 1 year before the tank started leaking. The leaks are coming out where the screws attach the frame to the tank. Looks like a quality control issue to me. Perhaps they should have a recall.

July 5, 2025
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sprayer and batteries are fine,

that sprays for a long time on the 2.0 battery The problem is with the harness and plastic parts that go with it My harness is ripped apart My plastic clasps have broke when I got it The screws attaching the harness at penetrated through the tank and was leaking I had to caulk them but if he can get around that it's a decent sprayer

June 18, 2025
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Working so far

Would Recommend

On/off switch location makes it impossible to use while it’s on your back.

June 10, 2025
Verified Purchaser
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BEAST MODE

My fiancé has this. He’s a commercial landscaper and he loves the amount of weed killer he can put in this.

May 22, 2025
Verified Purchaser
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Great Product

Would Recommend

Price is kind of high but works better than I figured it would. purchased this to treat our yard for flea and tick. the spray pattern is very wide. Coverage was great. Very pleased with it.

May 16, 2025
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no problem with the sprayer

there is no problem with it spraying. it was cheap plastic parts that broke easily. the backpack straps that tore the second time I used it. a few screws that were used to attach the back straps penetrated the plastic and leaked I had to caulk the inside of the tank over the screw heads to stop the leaks.

May 10, 2025
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It leaks

It leaks pretty much in every screw that's attached to the chamber. The attachments and parts are cheap plastic and snap easily

April 26, 2025
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Sad I wasted money on this

Would Not Recommend

The mower itself is fine. It's held up just fine. But the batteries, the only way to use the mower, are terrible. The mower came with one and we bought an extra so we could do the whole yard in a single go by just swapping. But after 3 years the batteries lost about 50% power. I had to make do because we couldn't afford to get a new battery or change to a gas mower. But now on year 4, the two batteries can't mow for more than 10-15 mins at a time each. They still show they have 50% charge too de...

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Do not order for pick up at store. Poor service

Would Not Recommend

Product is fine, Lowes service is terrible

April 4, 2025
Verified Purchaser
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Response from Kobalt Team

Hello Customer Zero. We are sorry to of your expereince. We can sympathize with your frustration. Should you ever need parts or troubleshooting assis...

Kobalt TeamApril 7, 2025

SunriseGlobal-Kobalt

One of the best tools in my collection.

Would Recommend

This sprayer eliminates the need for pumping like old fashioned sprayers. It holds a lot of mix and has several different tips for different spray patterns. My battery has run for several hours of spraying without needing a recharge. The back-strap harness is very comfortable and puts the weight on your lower back rather than on your shoulders. The unit is too heavy for my wife, so she puts in into her garden wagon and rolls it around the property to spray her shrubs and flower beds. After ...

January 17, 2025
Verified Purchaser
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Great for the price

Would Recommend

This mower is perfect for our lawn trimming. The battery lasted for about an hour which was plenty long for our purpose. Bagger is very large - helped to mulch ad collect the leaves from around the flower beds. Very pleased

November 14, 2024
From 40-volt , ( 1 ) 5 Ah 20-in Push Battery Walk Mower , Bagger Included Verified Purchaser
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Would Recommend

Everyone was very helpful and friendly. Elijah helped us out alot when putting lawnmower in our vehicle. He was very nice.

November 9, 2024
From 40-volt , ( 1 ) 5 Ah 20-in Push Battery Walk Mower , Bagger Included Verified Purchaser
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Waste of Time and Money

Would Not Recommend

I read the review on this model and the Model #KBSP 1040A-03. This model had the better reviews so I went with it. 1. As soon as I got it out and started to use it I didn't notice that it was leaking my weed killer all over my grass. Now that will be an added project to sod areas that are now dead. 2. The way it is constructed there is no way to open it up and check the connection of the hose to stop it from leaking. 3. When I went to fill the tank up for the second time the unit would not tur...

October 7, 2024
Verified Purchaser
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Response from Kobalt Team

Hello GregM.
Thank you for taking the time to share your experience. We are sorry to hear of your troubles, at your convenience, please take a ...

Kobalt TeamOctober 16, 2024

SunriseGlobal-Kobalt

Battery Lift is Terrible

Would Not Recommend

I almost never leave reviews, however this lawn mower is beyond frustrating. It is advertised as being able to complete 1/3 of an acre. I'm mowing significantly less than 1/4 of an acre and routinely go through 2 or more battery charges to complete the lawn. The battery takes hours to charge and won't start charging immediate due to being overheated. I'm not sure how there's not a class action lawsuit against this unit for false advertising against the advertised run time. At this I'm point I'm ...

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