Kobalt 40v Max Spring Cleanup Kit
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Items Included in this Collection



Item #3809910 |
Model #KBSP 1040A-03
New next-generation four-gallon tank featuring an improved pump design allows liquids to better empty after each use
Transparent tank with built-in level indicator for quick and easy fluid monitoring
Redesigned wand and trigger system featuring a lock-on function for improved comfort and continuous operation
High-quality brass nozzle provides five adjustable spray rates
Sprays liquids at up to 150 psi of pressure
Ergonomic shoulder and hip straps
2.0Ah battery & charger included
Kobalt’s 5-year tool, and 3-year battery limited warranties
General | |||
|---|---|---|---|
Battery Voltage | 40-volt | Battery Operated | Yes |
Type | Backpack sprayer | Tank Material | Plastic |
Package Quantity | 1 | Maximum PSI (PSI) | 65 |
Battery Type | Lithium-ion | Sprayer Rate | 900ml/min |
Hose Material | Rubber | Wand Material | Metal |
Dimensions | |||
|---|---|---|---|
Hose Length (Inches) | 55.12 | Wand Length (Inches) | 1.97 |
Tank Capacity (Gallons) | 4 | Weight (lbs.) | 13.67 |
Features | |||
|---|---|---|---|
Adjustable Spray Pattern | Yes | Kit | Yes |
ATV/UTV Mount | No | Pressure Release Valve | Yes |
Battery Included | Yes | Shoulder Strap Included | Yes |
Charger Included | Yes | ||
Compatibility | |||
|---|---|---|---|
Compatible with Ice Melt | No | For Use with De-icing Solution | Yes |
For Use with Weed Killer | Yes | For Use with Concrete Remover | Yes |
For Use with Grass Killer | Yes | For Use with Pesticide | Yes |
For Use with Fungicide | Yes | Recommended for Staining | No |
For Use with Disinfectant | Yes | Recommended for Lawn Chemicals | Yes |
For Use with Bleach | No | Recommended for Cleaning Chemicals | Yes |
Warranty | |||
|---|---|---|---|
Warranty | 5-year limited | ||
Certifications | |||
|---|---|---|---|
CA Residents: Prop 65 Warning(s) | |||
Miscellaneous | |||
|---|---|---|---|
UNSPSC | 21101800 | ||
Ratings may include incentivized customer reviews.
What Customers Are Saying
The product has received mixed reviews, with some users finding it powerful and well-designed, while the majority report significant quality and reliability issues. Key concerns include poorly designed and unreliable straps, frequent mechanical failures like leaks and pump problems, and difficulty fully draining the tank. While some appreciated the high-pressure output and battery life, the overall consensus is that the product is not reliable or durable enough for regular or heavy-duty use, with many customers needing to return it multiple times due to defects. The product appears to be a disappointment for most customers, with quality control and design flaws undermining its functionality and value.
Customer review summary generated by AI, including incentivized reviews.Great battery backpack sprayer
Bought this to apply pre and post emergent herbicides on my driveway and lawn. Works great just make sure the keep the filter cleaned otherwise it can get clogged and stop spraying. My only complaint is that it dosent come with the proper spray tips for the type of broadcast application I'm using it for so I had to order some teejet nozzles and attachments for the wand to make it work better for broadcast applications. All in all, I would recommend this product.
Single use product
Used once last spring for weed control, drained and stored in a warm garage. Battery kept plugged in. Took it out this year to find out that despite the battery being fully charged, it no longer turns on. I see now that Lowe’s has dropped this product. I’m hoping that customer service will at least replace it with a lsimilar one as it was a very expensive single use last year.
Leaks!!!
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.
Hi there! Thank you for sharing your experience with the Kobalt 4‑Gallon 40‑Volt Backpack Sprayer. We’re sorry to hear about the leaking issue you en...

Because of the weight not great for hill work.
It did the job quit well but was heavy. 2 gallons was sufficient for working on a hill.
Verified Purchaser
Replacement parts non existing
Unit was used twice. When attempting to use a third time, the nozzle failed. There is a split down the side. Evidently it's a common problem as the replacement part is out of stock. When checking places to buy it I came across several reviews. The split happens in the same area so this is an indication of manufacturing quality issues. There's no time frame when or IF this part will become available.
Hi there! Thank you for your review of our Backpack Sprayer. We are very sorry to hear that you have had a difficult experience locating replacement ...

3 Star But Id Still Recommend It... Read Why
So I bought the older version of the 40v backpack sprayer in August of 2022 when i saw it on sale for just under $100 and I knew I was going to need it in the spring of 2023. I didnt test it out right away, just put the new box in the garage for safe keeping until spring 2023 - my fault and I know better, but thats how this one went down lol. Well here came spring 2023 and sure enough I could hear the pump come on (testing with just water at first to make sure working right and test spray patter...
Hi there! We appreciate you taking the time to review the Kobalt 4-Gallons Plastic 40-volt Battery Operated Handheld Sprayer. We will pass your exper...

It leaks
The wand has a leak and have to take back
Verified Purchaser
Hi there! Thank you for reviewing your Kobalt KBSP 1040A-03 backpack sprayer. We're sorry to hear that it had a leak and you are planning to retu...

No replacement parts
No wand replacement available for over a year part failed in six months call customer service today no help asked to talk to supervisor they were in meetings. Will never shop in lowes again
Hi there, Rich! We are sorry to hear that you are having a difficult time locating replacement parts for your Backpack Sprayer. We would be happy to ...

No more pumping
No more pumping
Verified Purchaser
Kobalt 40V Backpack Sprayer
I have had my sprayer for about 3 years. This was the first Kobalt 40v tool I purchased. I have bought several since. This sprayer has served me well. It has worked since day 1 and has never let me down. It has a great spray range. I have used it for insecticides, herbicides, and also with chlorine for pressure washing. I almost always clean the machine after use to keep chemicals from messing up the tubes, etc... After cleaning the tank I run fresh water through it. My only complaint with the u...







Hi there, Nick! Thank you for your review. Batteries should be removed from the tool when not in use. This is to ensure the battery stays charged and...