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Field King

Field King 190515 Professionals Battery Powered Backpack Sprayer, 4 gal

  • Based on 9,656 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Jun 28
Order within 19 hours and 17 seconds
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Style: Battery Powered


Features

  • No pumping required while using with liquids and water soluble solutions
  • Up to 4 hours of spray duration on a single charge or 50 gallons of liquid (with 8002 nozzle)
  • 18 volt Lithium-Ion 2.1 Ah Battery charges in 3.5 hours (charger included). interchangeable Battery system.
  • Pre-set spraying pressure at 40 psi, 0.2 GPM, for typical landscape applications (with 8002 nozzle)
  • Powder-coated Steel frame for durability and chemical resistance
  • Fully padded back harness for all day spraying comfort
  • Triple filtration system prevents clogging during use and enables pump longevity
  • Premium, lockable shutoff; 21 inch poly wand; and the highest quality Viton seals for chemical resistance
  • 4 nozzles included: brass adjustable, low volume flat fan, high volume flat fan, and foaming nozzle. Also accepts tee jet nozzles.
  • Not designed for use with wettable powders.

Description

The Field King pro Max 190515 lithium-ion battery powered 4 gallon backpack sprayer consists of an ergonomic design modeled after the existing Field King 190328 no-leak pump backpack sprayer. With integrated battery storage, this design ensures the equipment is protected from the elements & liquids during filling & spraying. With the 24 foot vertical spray height, this easily cleanable & maintainable sprayer is ideal for professionals applying herbicides, insecticides, fungicides, fertilizers & other water-based chemicals in hard to reach areas. With 4 hours of spray time andup to 50 gallon sprayer volumeper charge, this sprayer is perfect for Weed prevention, Weed remediation, & pest control.

Brand: Field King


Tank Volume: 4 Gallons


Color: White


Material: Alloy Steel


Item Weight: 14.15 Pounds


Brand Name: Field King


Model Name: Professionals


Model Number: 190515


Manufacturer Warranty Description: 1 Year


UPC: 841688005549 841688005334


Global Trade Identification Number: 34


Manufacturer Part Number: 190515


Item Type Name: Battery Powered Backpack Sprayer


Manufacturer: The Fountainhead Group, Inc.


Tank Volume: 4 Gallons


Item Weight: 14.15 Pounds


Item Dimensions W x H: 15"W x 22.5"H


Hose Length: 50 Inches


Color: White


Style Name: Battery Powered


Power Source: Battery Powered


Maximum Pressure: 40 Pound per Square Inch


Material Type: Alloy Steel


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jun 28

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.

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Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Appears to be high quality
Style: Battery Powered
So far, great. This unit is an improvement over the Petra 4-gallon sprayer that only gave me problems. I have used this unit to spray 8 tanks of herbicide so it’s new. What I find so well designed with this sprayer is that it shuts off the pump when the spraying stops. Another design that appeals to me is the built-in bottom stand that helps in stability when I have the unit on my zero turn mower between my legs. It doesn’t tip over. I also ordered and received the 4.2amp battery so now I can spray for a long time. I need the long spray time because I live on a large acreage. ... show more
Reviewed in the United States on April 10, 2026 by Tony Anders
    • Outstanding sprayer!
Style: Battery Powered
I've been using my sprayer for about 3 weeks now. Just yesterday and today I sprayed 6 acres of avocado orchard where weeds were growing between the rows and between trees. I pretty much worked non-stop each day for 6 hours and the battery never showed any signs of weakening. I do believe they are correct when they say it'll spray 50- gallons on one charge. It doesn't leak, it's very quiet and it's comfortable with it's wide straps and harness. Here's the thing: I am not spraying continuously, I'm spraying individual weeds but at times I'll spray for upwards of 5-6 seconds when I encounter a cluster of weeds. The sprayer kept-up just fine but after 4-5 seconds you will notice a reduction in pressure and it starts 'falling-off', after 8-10 seconds you're at half-power. Of course, this will vary depending which spray head you use. Now let me tell you about my awesome modification! Since you no longer have to pump the sprayer, I decided to convert mine into a dual-sprayer unit! I cut the hose about 6 inches coming out of the tank and then went to Home Depot and bought a plastic/nylon Tee fitting. I then got some fuel-injection clamps (not band clamps), these clamps are smooth and let you really cinch down on the hose. I took another hose and sprayer and now I have a sprayer in each hand! This proved to be incredibly more production and faster working through the orchard. You can also bring the sprayers together to double-saturate a weed as well. Did the sprayer keep-up with having TWO sprayers going? Yes, it did but if both sprayers were going for more then 5-6 seconds I did notice the pressure reduced and I wasn't get as much a mist/spray but instead more streaming. Still, double-sprayer is the way to go, I'm surprised they don't offer this already. ... show more
Reviewed in the United States on May 22, 2020 by Steve R
    • Great for large areas
Style: Battery Powered
The TLDR is that this is an upgrade from my old 2 gallon hand pump carry by my side sprayer I used to use. Definitely makes spraying weeds easier on my larger lot. The good: Holds 2x more than the typical carry next to you type sprayers. Battery operated!!! No more pumping! Battery appears to last a long time. I have used it for about 10 refills and the battery hasn't been charged yet and still works. The wand has a locking mechanism for continuous spraying Seems sturdily built The bad: You can't quite fill it up to the full 4 gallon mark or it overflows in the real world It weighs a lot once it's filled up up. The review: I have used this for about 40 gallons worth of spraying RoundUp Pro Concentrate and I have not had any issues with performance of this. It does get pretty heavy when you have it full of whatever you are spraying so I would recommend that you fill it up while it is sitting on something that is a little elevated off the ground. I choose to do this on the edge of my retaining wall that sits about 3ft off the ground. this allows me to not have to bend down as far to pick it up and put it on. It has a chest clip though that really does help take the load off once you have your arms through the straps. As for the actual spray performance, I have only used the fanning spray nozzle (red tip) and it covers what I need it to just fine. Doesn't get clogged at all. Be sure to read the directions and do a good plain water rinse on it after you get done using your chemicals in it. The battery makes the pump run once you squeeze the sprayer handle and it's pretty quiet. Just sort of purrs on your back and then quits once it gets to pressure or you release the handle. If you pay close attention you can start to hear the pump trying a little harder when you start to get low on your chemical and then about 30 seconds later your nozzle starts the doing the sputter to indicate you are pretty much on "E". it did take a time or two for me to remember to turn the switch to the "On" position before I loaded it on my back but once you get used to it you can sort of feel around for the switch on the left bottom side. All-in-all this is a great upgrade from the bottle sprayers I used to use. Now that I have about 3/4 of an acre of just weed areas alone on my property this really saves me time and energy. I always feel accomplished and like I made a big dent in the weeding work when I get done using this for the day. I would recommend this to anyone that has a semi-large walking area to maintain. Anything over an acre of weeds though would probably warrant a real pull-behind sprayer. ... show more
Reviewed in the United States on March 25, 2019 by thesphynx
    • Works, but on the heavy side.
Style: Battery Powered
So much easier to use than hand pump models. It is heavy when full so I strap it on the back of a 4 wheel mobility scooter and spray easily.
Reviewed in the United States on April 22, 2026 by DKCDKC
    • Quality Control Issues
Style: Battery Powered
Ordered one and the pump would not prime. I returned that unit and received a replacement, that pump wouldn’t prime either. I verified this was not a me issue by following the instructions to prime and also watching the video to confirm. I then called customer support and they couldn’t offer much help over the phone. Returning the replacement unit and buying a different brand. ... show more
Reviewed in the United States on March 16, 2026 by Luis

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