Backpack Sprayer 4 Gallon, Self-Cleaning Battery Sprayer for Weeding, Cleaning, No Gear Limit, Variable Pressure
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This item is eligible for return within 30 days of receipt
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Availability:
Only 5 left in stock, order soon!
Arrives
Thursday, Sep 4
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Size: Self-Clean/4GL
Features
- Variable Pressure: No gear limit! Dialing the knob between 8 psi to 116 psi depending on which you need, let the flow rate from drizzle to violent storm. Rotate the knob easily to select the satisfactory speed for your sprayer
- Exclusive Patented Technology: The first backpack sprayer with self-cleaning technology reduces the waste of raw materials effectively. Start the self-cleaning function in time to earn a longer service life for you
- Customer Oriented: ALIENTABI is a customer-centric brand. Before the sprayer is sent out, the factory will conduct a series of quality inspections on the machine, including a water leakage test, so some products will have residual water stains inside the box, which will not affect the use. If you receive the goods and think there is a problem, get back to us
Brand: ALIENTABI
Tank Volume: 4 Gallons
Color: White
Recommended Uses For Product: Weed Control, Garden sprayer, Cleaning
Material: Polypropylene (PP)
Brand: ALIENTABI
Tank Volume: 4 Gallons
Color: White
Recommended Uses For Product: Weed Control, Garden sprayer, Cleaning
Material: Polypropylene (PP)
Style: Modern
Power Source: Battery Powered
Included Components: [INCOMPLETE]
Model Name: Inventor 5.5
Maximum Pressure: 116 Pound per Square Inch
Hose Length: 33 Feet
Product Dimensions: 22.25 x 14 x 10.5 inches
Item Weight: 16.27 pounds
Manufacturer: ALIENTABI
Country of Origin: China
Item model number: Inventor 3
Batteries: 1 Lithium Polymer batteries required.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Sep 4
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: Self-Clean/4GL
Had many sprayers in the past but I really enjoy this product. Purchased this sprayer for mosquito treatments and weed/brush killer treatments. Definitely enjoying the performance of this product, spray quality, functionality, and easy use.
Reviewed in the United States on May 28, 2025 by Rocket
Size: Self-Clean/4GL
I did a lot of research when replacing my old hand pump backpack sprayer with a battery powered one. One of the features that helped me decide on this sprayer was the self-cleaning feature. I have a large pond and need to spray algicides in order to keep the surface clean. That leads me to the second reason I chose this sprayer. It sprays at least 30 feet horizontally depending on wind and chemicals being sprayed. When I received the sprayer, I was immediately impressed with the manner in which it was packaged. After some minor assembly and charging the battery, it was ready for use. I ran a tank of plain water in it first to see the different spray patterns of the three included tips. After that, I mixed up some algicide and put the sprayer to use. I was a little concerned at first that the straps did not include straps across the stomach. After properly adjusting the straps, I realized that a strap across the stomach was not necessary. It does have a strap with buckle across the chest. The unit is very comfortable on the back and the on/off/variable pressure dial is easy to reach. When I finished spraying, I rinsed the tank since I used the entire mixture minus just a very small amount in the bottom of the tank. I poured a bucket of water and attached the self-cleaning pickup hose. I flipped the diverter valve to clean and pumped plain water through the pump, hose, and nozzle. It doesn't get any easier than this. The battery has a lot of charge left in it so there is no need to charge it after each use. Given all of the choices out there, I am really glad I picked this one. Absolutely no leaks, a strong performer, and not at all uncomfortable on the back. This is a solid piece of equipment. I am in high hopes it gives me years of trouble-free service.
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Reviewed in the United States on July 8, 2023 by D. Oliver
Great Product seller AAA+
Reviewed in the United States on May 25, 2025 by ERIC E
Size: Self-Clean/4GL
I have looked over a number of backback sprayers, and knew that I wanted a battery powered one so that it can spray more evenly. I have used pump style sprayers before and once the pressure gets lower I tend to overspray or underspray areas, so I knew a battery powered one would keep a constant stream (hopefully). This product has features that I haven't seen on any other battery powered backpack sprayers, such as the pressure washer style spray attachment which can use the same nozzles as pressure washers. Other backpack sprayers have weak plastic nozzles pointed at weird angles. The motor isn't loud and I can dial in the pressure I want which is also a unique and useful feature. I thought I would really like the rinse feature, but I will probably never use it only because it seems like it would be easier to attach a water hose to the tank at a lower pressure and then use the sprayer to cycle through the water coming from the hose to rinse it out. Though the rinse feature can also be used to transfer fluids and you may have to own it to know what I mean. The manual states this which is where I got that idea from. The description makes it sound like is has a super duper smartphone battery, when in fact its just a regular power tool battery, and a low voltage one at that. It is only 18.5 volts, and perhaps it has to be lower in order for the tank not to be emptied immediately at full power. They could probably greatly increase their sales and lower their price if they used the same batteries as the Black N Decker 20V power tools which probably all of us already own and sell it as (tool only). I read backpack sprayer reviews stating how heavy they are when filled with liquid, but I have no problem with it. I suppose all of those years carrying heavy books in my backpack and walking to school paid off. So if they ever release a newer version in the future, I would suggest that the sprayer hose can unscrew from both ends and use Black N Decker style batteries. I will use this to spray products on my large lawn that do not work with hose sprayers. I thought about getting a tow sprayer to use with my riding mower, but I don't have anywhere to put it so this smaller backpack can be placed on the shelf in my garage. UPDATE I have used this about four times already to spray weed killer on my lawn and it has worked perfectly. I like how its almost like a weaker version of a 120V pressure washer. The first time I filled it all the way up and didn't have any problem with the weight and the shoulder pads are very thick to absorb any discomfort. The next few times I used it, I didn't fill it all the way up as I didn't need as much and its a lot lighter then (obviously) for those who say it may be too heavy when full.
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Reviewed in the United States on December 30, 2022 by R. Nashville R. Nashville
I have been using a 5-gallon Solo backpack sprayer but needed something I could keep off of my not so healthy back. So, I got this cart sprayer. I was pleasantly surprised how well-built the sprayer is. All the components look to be top-notch. My Solo wand broke several times but it was cheap plastic and this is a stainless steel wand with a high-quality metal spray nozzle. The battery life looks to be very good, something like 6-8 tanks based on how it is going so far. In terms of performance it is very powerful -- it feels like it is several times more powerful than my backpack sprayer even though it is only rated at ~50% more psi. The spray is both finer and higher-volume than a backpack sprayer and so will cover 3-4 times faster. It seems to be somewhere between the hand-pump sprayers and the air-blast sprayers in terms of the rate and how fine the mist is. I have had no problems at all using the sprayer, just put a few parts together, charge the battery, and start spraying. The only thing I found a bit odd is the sprayer makes funny noises when it gets low, I think the motor is trying to clear out a potential clog. There is a special self-cleaning setting but I have not used it as it seems primarily useful if you are leaving chemical in the tank but want to flush out the pump/wand. I just flush out the whole thing when I am done. The hose length ends up being OK but I would prefer a longer hose. The supplier said they would be listing a hose extension in a few months and I plan on getting one. It would also be nice to have a wand extension option, it is working better than I thought on higher trees due to the high pressure but overall it would be easier to get the spray higher up with a wand extension.
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Reviewed in the United States on May 29, 2022 by Scott Smith
Size: Self-Clean/4GL
After the third use the water pump on the machine failed. Sucks
Reviewed in the United States on June 18, 2025 by Kelsbert browne