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

I use this sprayer to cover my large yard, and it works great! The rechargeable battery lasts a long time—easily handles multiple tanks per charge. The 9-gallon tank and strong pump make spraying weeds and fertilizer fast and efficient. I love that I can tow it or pull it by hand, and the wide spray nozzle covers a lot of ground quickly. Only downside is a bit of liquid stays in the tank unless you tip it.Highly recommend for anyone with a big property!

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 markerhose 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 25Eleven 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...

I bought this sprayer to replace the one I've had for 9 years. The new product has some improvements but also some not so good. It was delivered super fast, and was fairly easy to assemble. The issue came when I tried to install the battery. The tubing inside the back panel was routed right across the battery insert and the only way I could get the battery in was to open up the back and work around the tubing. I'm hoping this does not happen when I have to insert the battery the next time. The other issue I'm concerned about is the holes where bolts hold the back panel on are just in the plastic. The older model had nuts to bolt in to. Just hope I don't have to take that panel off again or those holes will probably strip. Once assembled and battery in sprayer worked great. Hope it lasts as long as the last one.

This cart sprayer has been used for only 2 summers by my wife who is 65 - she does not abuse things. It has not been in the hands of careless youths or dragged up steps and over curbs.The price of this thing far exceeds reasonable profit and cost of materials - so it ought to be built to last. It is a good concept and fits our needs exactly (watering a small garden away from water and power in the middle of a traffic circle). However, the design engineering was either done by a fool or it was executed cynically with minimum cost of construction rather than durability in mind. On the back side of the unit is a black cover / casing behind which are the pump and the rechargeable lead acid battery. The pump motor is screwed directly into the back of the white plastic water tank. The battery (which, though small, is relatively heavy) is mounted to the black plastic cover. The black plastic cover is then attached with three small screws to the white plastic water tank.Normal use over anything but smooth pavement means the cart will get some bumping as it rolls along - and you can probably see where this is going - the three screws holding the black cover and the heavy battery strip out of the white plastic and the whole thing falls off the back of the cart - only held back from falling completely onto the ground by the electrical wires and hoses inside. The sprayer on the front of the cart (also directly screwed into the plastic tank) fell off last year. Aside from being challenged by the plastic mounting threads, the sprayer mount was under stress from the hose being cut too long by the person assembling it - over time the hose won out and pushed the sprayer mount off, stripping out the plastic threads.I trimmed the sprayer hose to a length where it does not stress the mount, and installed slightly larger (wider) machine screws in the sprayer mount and with the help of some blue Loctite, I hope they stay there for a while. It would have been better if the factory installed threaded metal inserts into the body of the tank - then this would not be an issue.The black plastic cover supporting the weight of the lead acid battery is an absurdity. It's bound to fail over a short time, probably consigning most of these units to the dump way before the materials useful life is over. Given the weight of the battery and its inevitable effect on the mountings as the cart goes over uneven ground, an intelligent person looking at this would say "why mount it using a plastic threaded hole?" Why not design the back cover so that it is mounted to the upright metal handle frame either side? Then it would support the weight adequately and not move at all.Another way to solve this would be to use a modern, and much lighter Lithium-ion battery. But there is that cost vs profits thing again. This cart as it stands is engineered to get money out of your wallet and be consigned to the dump not long after - the cart is a good idea but not a good use of your money or the materials it is made of. (I won't rant on about the environment here - but it really is upsetting how much of this kind of thing goes to the dump after two or three years).Now I have to go back to installing some metal strapping on ours to stop it from falling apart.A side note - our battery failed after two summers and I just replaced with another lead acid battery. Perhaps I should have bought a lithium ion replacement.... If I knew how poorly this cart was going to hold up a couple of years ago, I would never have bought it. I could make something more durable with a pump and a battery myself.In the attached photo - you can see the battery on the black cover, the pump mounted to the tank and a couple of the cover mounting screws on the ground which go directly into the white plastic. (I put blue Loctite in the screw holes but, no good - it needs wider screws and some other support, metal bracing or similar to the handle frame, to stop the cycle repeating).EDIT - here's a simple fix for anyone else with the same experience (or wants to prevent this happening to their cart). Buy two black EPDM rubber 36" x 3/4' stretchy straps from Home Depot (or Amazon) for under $3 each. There are two support rails under the cart water tank - hook one end of each strap on the front rail and the other end on the back rail so it goes around the tank and holds the back cover in place. The black rubber straps look like they came with the cart which is why I chose them - but you could use any colored bungee cords. (See added pics)

Lots of pressure. Worked great