Master Mfg Revolt Lithium-Ion Series 9 Gallon Pull & Tow Sprayer-1.0GPM, 50" Swath

Executive Summary: Buy this sprayer. It's superb. Verbose version, for the reader at leisure: I purchased this sprayer +3 years ago. Today I used it to spot spray 34 gallons of Weed-B-Gon (also Amazon purchased, in a gallon jug not available at local home improvement stores). I finished spraying our very weedy one acre lawn. I didn't finish the (three year old!) battery; the pump still was going strong. Excellent! The sprayer usually is used three times annually, for applying weed killer. It's always worked well and never failed. But I didn't purchase this sprayer without prior frustration in finding an acceptable solution. The first attempt was a hand pumped two gallon sprayer from a local hardware store. It's good enough, and I still use it for limited Roundup application. But the small tank means the sprayer needs to be refilled repeatedly to cover a large area, and the many refills are excessively time consuming. So I purchased a hand pumped four gallon backpack sprayer from H-F. It was a disaster. I hated this sprayer! Carrying +30 lbs on my back, poorly supported by thin, insufficiently padded straps was true torture. I couldn't use it. The third attempt was a battery powered unit from Tractor Supply (RC-8G-SS-TSC). Although a wheeled sprayer, this too was immensely unsatisfactory. Underpowered and with limited battery life, it started falling apart upon first use. Soon after, when the handle broke, I returned all the pieces to TSC (for full refund). But the fourth sprayer--the Master Gardener Rechargeable Cart Sprayer - 12 Volt, 9-Gallon--reviewed here has been an excellent purchase. I pull it by hand and even filled with 65 lbs of weed killer, it rolls easily enough. The pump is sufficiently powerful for spraying a decent distance (which I've not measured) and as indicated above, battery life, both per charge and in total, has been superb. Regarding complaints raised by other reviewers: tank capacity markings are difficult to see--yes; my solution was to highlight the raised indicators with a black permanent marker hose too stiff--the hose, at least on my unit, is tightly coiled and resists uncoiling, but for me it's not been a problem, and were it, as others have indicated, the hose can be replaced easily. (Also, from other reviews, it seems the sprayer may now come with a less stiff hose.) pump does not fully empty tank--yes, there will be some liquid remaining in the tank that the pump can't extract, but it's far short of the one gallon claimed in some reviews. When pulling the sprayer by hand, I finish the last of each tank by tilting the unit one way or another. What remains unpumpable is at most a few ounces. Readers might be curious why, more than three years after purchasing this sprayer, I decided to write a review. The answer: earlier this week I wanted to apply an end-of-summer dose of weed killer. But when I retrieved the sprayer from storage--the battery charger was missing!! In my version of homeowner chaos, there are a couple locations where the charger "should" be. I searched them multiple times, doing some reorganization in the process, but didn't find the charger. Then there a couple places where the charger "might" be. Those too were searched repeatedly, without success. At that point I decided the search was too time-wasting, if not futile (i.e., it had to be someplace in this dang house), and that I just should buy a new charger. So, I checked the owners' manual--but it has no information on ordering a new charger. Then I searched Amazon, including reviews for the sprayer. But other than a "call the manufacturer" suggestion, this too was unsuccessful. After concluding that a replacement charger wasn't to be easily obtained, I reactivated the in-home search for the old charger, now focusing on the many places where it "shouldn't" be. And finally, success!! (Behind a commemorative plate on the living room wet bar...). So, in thanks and celebration I decided to write this review. My final advice--(i) buy this sprayer and (ii) be certain ALWAYS to store the charger with the sprayer. Regards, BS ---------- An update, 11 May 25 Eleven years after purchase, the sprayer still works fine--and I'm still immensely happy with it. But this year, in its first use while putting down 40 gal of weedkiller, the pump was noticeably weaker at end than when I started. I thought "The pump must be failing" and after research, bought a new one for $27. But sometime that night woke up thinking "Why would it be the pump and not the battery?!?" Sure enough, the next day after recharging the battery, the pump worked fine. Of course, after 11 years of service the battery had failed. I bought a Ritar RT1245H, 12V 5Ah F1 SLA AGM Rechargeable SigmasTek replacement battery ($18). Although the new battery's dimensions were identical to the old, battery replacement proved surprisingly challenging. Three screws secure the back cover of the sprayer and the cover is easily removed. The battery is mounted to the inside of the cover and retained there by a "cage" consisting of two metal straps that go around the battery and screw into the cover. When removing the battery, pay more attention than I did to how the cage fits to the cover and how the battery fits in the cage. Because for me, the cage straps seemed too short. Two of three strap ends could be screwed to the cover, but the third proved impossible. The gap between the last strap end and the cover was roughly 1/2" and the screw wasn't long enough to bridge the gap. Ultimately, a longer machine screw was used, threading it through the cover and securing it with washer and nut. Inelegant, but serviceable. (The fourth strap end is not intended to fasten to the cover.) Again, pay more attention in disassembly and you might have an easier time putting it back together. But once back together with new battery, the sprayer again is working fine. And I've a replacement pump on hand when needed...

This is just what I needed. At 82 years old my backpack sprayer was (literally) a pain. With its large wheels and 9-gallon capacity it is perfect for applying Roundup to my large, gravel-covered yard. Warning: The first unit I received had the batteries and other parts missing. I returned it. The replacement had the parts, but the battery dock was not attached -- just hanging. I mounted it myself and all was well The parts and instructions were inside the tank, which had water in it from factory testing; They had to be carefully separated and dried. While the unit is well thought-out and works superbly, the supplier needs to work with those who pack and ship it.

The rubber washer inside the hose connector is not thick enough to stop the wand from leaking when it is attached to the hose. Other than that, the product is awesome.

EDITED May 2026 - sprayer is no longer usable after just one half a season. Sprayer was stored in our shed over winter with lines cleared of water. Cannot use it - went to fertilize and the nozzle is spraying out any and all possible places except where it should. Have done all troubleshooting to no avail. Will be filing a return claim with the company. love this sprayer! I am a real, non-paid reviewer, using my own words and not AI I am a dahlia grower/seller and have two 20’x40’ garden beds. Using my 2 gallon sprayer became insane. I was recommended this sprayer by another grower and am so happy that I found it here. The unscrew cap is easy to grip, has a strainer piece that stops large pieces from getting inside the unit. The wheels roll so nicely and makes great turns! The hose is definitely long enough so I just sit the sprayer at the end of my rows and walk up and down. The adjustable nozzle is great too if you have to change the sprayer pattern. I’ve used the sprayer for a few days before needing to recharge the battery. Also it’s pretty quiet. Don’t hesitate this is worth saving your elbows from the carry-type sprayer and your back from the backpack type.

I have a very large gravel driveway that has been a nuisance to maintain regarding weed control. After ordering this, I used it right away and it took a fraction of the time it would normally take using a pump style backpack sprayer. Very happy with this purchase and ease of use. Will definitely make weed control much faster and easier. And I didn’t realize this when I bought it so it was a surprise to me. But it has a broadcast option that does an outstanding job. I turned the sprayer on, switched it to broadcast mode, and pushed it around like a lawnmower. It did a surprisingly fantastic job. Also, fast shipping, quick charging, and easy assembly.

I love this sprayer! I've always used smaller handheld sprayers and never knew how much easier my life could be with something like this. We live on fifteen acres, and I mostly purchased this for use on an acre in front of our house, but I look forward to trying it out towed behind our mower for a larger area back by our pond. Both the spot sprayer and the broadcast sprayer work well, although so far I've opted for the spot sprayer (we're trying to eradicate star thistle). This sprayer is easy to assemble, fill, use and clean. It feels very heavy duty but the weight is definitely manageable. It's pretty quiet up until it starts to run out of liquid. For the price, it's definitely worth it versus cheaper hand held sprayers and for those of us who don't want to fork out over $500 for a larger sprayer. If you're looking for something in between, this sprayer is for you.

This is definitely a 5-star! Assembly was easy and operates as it should. Portability and weight are excellent.

I was excited to get this cart sprayer as an upgrade from a 3 gallon hand pump sprayer that I had been using for years to treat my lawn for insects. The cart assembled easily, and the next day I decided to use it to spray my lawn. I turned on the pump for a second just to verify it would run, which it did so I filled the tank with insecticide and water then went out to spray the lawn. To my disappointment, nothing would spray out at all. I tried both the wand and the sprayer off the back of the tank, neither would expel anything. The pump was definitely running, so I took off the back cover to inspect what was going on, and it turned out there was no liquid in the tubing going from the tank to the pump. Figuring it was just a clogged up port, I emptied the tank (not terribly easy with 9 gallons of insecticide in it) and checked the port from the tank to the pump, only to discover that the tank had not been drilled out where the hose is screwed to the tank. That's right, the tubing was connected to the tank, but there was NO HOLE for the liquid from the tank to move into the tubing to the pump. There's absolutely no way this tank was tested after it was manufactured. I drilled it out myself, reconnected everything, refilled the tank, and everything worked great... that is, until the battery ran out only 15 minutes into using it. Pros: while the battery lasts, this sprayer works very well. I could use it to spray my entire lawn (1/3 acre) in less than 30 minutes - however the battery only lasts 5 minutes.. Cons: poor quality control. The battery is awful. Brand new it only held a charge for 15 minutes, now I get only about 5 at best.