

⚡ Spray smarter, not harder — power, comfort, and precision in one pack!
The DEWALT 20V MAX 4 Gal. Lithium-ion Cordless Backpack Sprayer Kit combines heavy-duty construction with advanced Variflo® technology for adjustable flow control. Featuring a triple-filtration system and chemically resistant components, it ensures clog-free, reliable performance. Its ergonomic harness and adjustable hip straps deliver all-day comfort, while the 20V MAX battery supports extended use, making it ideal for professional-grade garden, pest, and weed control applications.
| ASIN | B09TB8NSZY |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Best Sellers Rank | #47,891 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #221 in Lawn & Garden Sprayers |
| Brand | DEWALT |
| Color | Yellow |
| Customer Reviews | 4.6 4.6 out of 5 stars (229) |
| Department | Unisex Adult |
| Global Trade Identification Number | 00841688006478 |
| Hose Length | 50 Inches |
| Included Components | Backpack Sprayer, 20V* Lithium-ion Battery and Charger |
| Item Weight | 17.26 pounds |
| Item model number | DXSP190681 |
| Manufacturer | The Fountainhead Group Inc |
| Material | Stainless Steel, Heavy-duty nylon-reinforced hose |
| Model Name | DEWALT 20V* Lithium-ion Battery Powered Backpack, 4 Gallons |
| Power Source | Battery Powered |
| Product Dimensions | 10"W x 22.5"H |
| Recommended Uses For Product | Garden sprayer, Pest Control, Sanitizing, Weed Control |
| Style | Knapsack |
| Tank Volume | 4 Gallons |
| UPC | 841688006478 |
P**S
Good quality, and not too heavy.
Reading reviews before I purchased this, I was a little concerned because people said it was heavy. I have used both Solo and Echo hand pump backpack sprayers over the years as a Private Applicator. Honestly, I can’t say it was much heavier than either of those. I started by putting it on the back of my golf cart and driving around. It is top heavy and would fall forward if I hit a bump. Next I tried walking with it and it was comfortable and worked well. I used a DeWalt 8AH battery. I sprayed a total of 21 gallons of herbicide (5 batches and a clean-up) and there were still 2 of the 3 green lights on indicating it had only used 1/3 of the battery. I’m impressed with it and think I made a great purchase.
F**D
fantastic sprayer.
This thing is AWESOME !!!!!! I can't tell you how much I love this sprayer. I have been spraying Permethrin around the house to kill off the bugs. This works great with little effort. When you fill it to 4 gallons it gets a bit heavy (think of it as a workout with a backpack :). It does have waist straps so that helps out a lot. With 4 gallons, I'm able to go around my whole house and spray to kill of the bugs. Works great. I would definitely buy it again in a heartbeat especially since many of my powertools are from DeWalt and use the same battery packs. Side note. When you get it, you might need to prime it. Getting a garden hose and blasting water into the vent (as suggested) worked REALLY well. After that, it works every time without priming it.
J**W
Excellent sprayer
Compared to my previous sprayer, this is game changer. Great battery life. Definitely worth investing in if you use a sprayer frequently over large areas.
L**G
DeWalt design and quality.
I have probably had a dozen or more sprayers. The DeWalt is my favorite. Does all the spraying I need on one small battery...which is easy to get to. It's pretty heavy for me to carry around but works very well from my golf cart.
J**R
Ease of use
Great quality . Nice to load up with more than a gallon to spray.
B**R
I would recommend this!
This thing works great! I have a three-story house and I can hit the top roof peak with a little bit of stretching otherwise with all the attachments it pretty much, solves all of my needs for insect control and mildew control under the soffit. Can easily hit 25 feet, but can hit 30 feet with long arms.
M**E
You get what you pay for!
This product was/is well built (so far), your tank will come with residual water from them factory testing it. The only thing I will say is if you order online from amazon check your serial numbers and compare to the boxes, not a single serial matched any box of Dewalt products I purchased. Some boxes said made in Mexico while the sticker on the actual item (drill, etc..) will say made in Mexico or Made in China. I really don't care where it's made, I just want my products to match the serial numbers to the stickers on the boxes. Side Note, purchase the extra warranty. I'm Hoping to not need it, but its better to have it and not need it than to need it and not have it. This electric backpack sprayer is a beast! I had an issue with all types of insects in the garden and I spent countless hours trying to remedy the situation that I had... It was really bad, I almost gave up gardening (my little container garden) due to the aphids and ants and pill bugs etc... Watched several channels and took lots of notes and I had one last chance at it and spraying the neem oil worked! I tested it with about 1.5 gallons and was light on the neem oil concentrate however, next week when I spray I will be filling this thing up with 4 gallons and after I spray my garden, I will spray the entire yard to get rid of the mosquitoes in the area as that is the last insect I need to get rid of. I will only use this thing for the garden no herbicides will ever see the inside of this thing. This thing saved me so much time and effort and going through all of this made me respect anyone farming or gardening that much more. If you don't have a battery sprayer and you are on the fence with purchasing one, do it, you will not regret the investment. As far as where to purchase it, if you care about factory warranties and all of that find an authorized Dewalt dealer and purchase from them. I will be contacting the company and trying to figure out this little situation and I will update.
K**O
Robust and superbly designed sprayer that is a huge time saver.
The Dewalt 20V Max 4 gal cordless backpack sprayer is a superbly designed product and a huge time saver. Everything about this unit shows design ingenuity. It is robust and powerful. I can spray a stream to reach two-story eaves which saves me getting up on a ladder to spray the bug spray and that alone made my wife very happy. I've had multiple hand-pump sprayers and two back pack hand pump sprayers but this Dewalt surpasses them all in function and time saving.
T**D
I got this wanting to make spraying my planted trees and shrubs on my 2 acres. I was really worried it would be heavy but it’s not. I love that I no longer need to grab the handle and pump to get pressure. This gives even pressure at all times. I recommend fully.
Trustpilot
1 month ago
2 days ago