{"product_id":"4-gal-battery-backpack-sprayer-field-king-190515-professional","title":"4 gal Battery Backpack Sprayer - Field King 190515 Professional","description":"\u003cp\u003eIn this review of the Field King 190515 Professionals Battery Powered Backpack Sprayer the bottom line is simple: this is a practical, time-saving sprayer for pros who need a cordless solution that keeps working without hand pumping. It is best for landscapers, pest control technicians, and homeowners tackling large properties who value long runtime and consistent pressure. The single biggest reason to buy is the battery power combined with a pre-set 40 psi output that delivers steady, professional spray performance for up to 4 hours or roughly 50 gallons per charge.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery runtime:\u003c\/strong\u003e The 18 volt Lithium-Ion 2.1 Ah battery delivers up to 4 hours of continuous spraying on a single charge, reducing interruptions on larger jobs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsistent pressure:\u003c\/strong\u003e Pre-set 40 psi output and 0.2 GPM with the included 8002 nozzle give predictable spray coverage for typical landscape applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable build:\u003c\/strong\u003e Powder-coated steel frame resists corrosion and chemical exposure, extending service life in demanding environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser comfort:\u003c\/strong\u003e Fully padded back harness and ergonomic backpack design make extended wearing comfortable for day-long work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClog prevention:\u003c\/strong\u003e Triple filtration protects the pump and reduces nozzle blockages when using water soluble solutions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile nozzle set:\u003c\/strong\u003e Four nozzles included plus compatibility with tee jet nozzles let users switch between flat fan, low and high volume, and foaming patterns.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe Field King 190515 is aimed at professionals and serious homeowners who need a reliable cordless sprayer for herbicides, insecticides, fungicides and water-based fertilizers. Its long runtime and 24 ft vertical reach are useful for tree lines, tall shrubs and large turf areas where repeated pumping would slow progress.\u003c\/p\u003e\u003cp\u003eUsers who must apply wettable powders or very abrasive suspensions should look elsewhere, as the unit is not designed for wettable powders. Also, those who require extremely high pressure beyond the pre-set 40 psi should consider a different model with adjustable high-pressure capability.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBattery power eliminates the need to pump while spraying, saving time and effort.\u003c\/li\u003e\n\u003cli\u003eLong spray duration and high per-charge volume make it efficient for large jobs.\u003c\/li\u003e\n\u003cli\u003eComfortable padded harness and powder-coated frame suit full-day professional use.\u003c\/li\u003e\n\u003cli\u003eTriple filtration and Viton seals enhance chemical resistance and pump longevity.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNot intended for wettable powders, limiting use with some formulations.\u003c\/li\u003e\n\u003cli\u003eSome users report occasional leakage, so check fittings and seals before heavy use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e4 gal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003e18V Lithium-Ion 2.1 Ah (charger included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRun time\u003c\/td\u003e\n\u003ctd\u003eUp to 4 hours or up to 50 gal per charge (with 8002 nozzle)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure\u003c\/td\u003e\n\u003ctd\u003ePre-set 40 psi, 0.2 GPM (with 8002 nozzle)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame\u003c\/td\u003e\n\u003ctd\u003ePowder-coated steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNozzles included\u003c\/td\u003e\n\u003ctd\u003eBrass adjustable, low volume flat fan, high volume flat fan, foaming; accepts tee jet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesigned for\u003c\/td\u003e\n\u003ctd\u003eWater-based chemicals and water soluble solutions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Field King 190515 is a strong choice for professionals and property owners who need a cordless sprayer that balances runtime, comfort and durability. Its consistent 40 psi output and included nozzle kit deliver dependable coverage, and the powder-coated frame and Viton seals provide chemical resistance. It offers good value for anyone who does frequent liquid applications but is not suitable for wettable powders or users needing higher pressure.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eHow long will the battery last on a full charge?\u003c\/strong\u003e\u003cbr\u003eThe included 18V 2.1 Ah battery provides up to about 4 hours of spray time or roughly 50 gallons depending on nozzle and spray settings.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it handle wettable powders?\u003c\/strong\u003e\u003cbr\u003eNo, this sprayer is not designed for wettable powders and should only be used with liquids and water soluble solutions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre replacement nozzles available?\u003c\/strong\u003e\u003cbr\u003eYes, the sprayer accepts the included nozzles and is compatible with tee jet nozzles for additional spray patterns.\u003c\/p\u003e","brand":"Field King","offers":[{"title":"Default Title","offer_id":48667220148443,"sku":"B07C814RC4","price":219.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61ar3ZyYRwL._AC_SL1211.jpg?v=1778622471","url":"https:\/\/gearmusthave.com\/products\/4-gal-battery-backpack-sprayer-field-king-190515-professional","provider":"GearMustHave","version":"1.0","type":"link"}