PetraTools HD4000
A 4-gallon sprayer with battery and charger that runs all day on a charge, for homeowners and small crews spraying large lawns or acreage.
Amazon $199.99$199.99
4 gal90 PSIIncluded
A battery backpack sprayer replaces the pump handle on a classic backpack sprayer with an electric pump, so the pressure stays steady from the first gallon to the last and your arm is free to aim the wand. These rankings cover battery backpack sprayers from PetraTools, Chapin, My 4 Sons, Solo, Jacto, Greenworks, EGO, Makita, Milwaukee, Scotts, Hudson and B&G, plus gas backpack mist blowers for spraying into trees and dense growth. Hand-pump sprayers, handheld and cart sprayers, and ATV or tow-behind sprayers are left out.
Tank size is the first choice. Four gallons is the standard: about 40 lb full, and enough for a typical lawn treatment in one or two fills. A 2.5 to 3 gallon sprayer is lighter on the back and suits pest control around a house or a small yard.
Battery is the second. Some sprayers come with their own battery and charger, often a sealed 12 V pack. Others from tool brands (EGO, Makita, Milwaukee) are sold as a bare tool that runs on the batteries you already own for that brand’s other tools. The price of a bare tool looks lower than it is if you need to buy a battery too.
Pressure decides what the sprayer can reach. 40 to 60 PSI is plenty for weed and fertilizer work on a lawn. Spraying into tall shrubs or trees, or pushing a long stream, takes 90 PSI or more. A pressure dial lets you turn it down for drift-prone herbicide and up for reach.
Mist blowers are a different tool. A gas engine drives a fan that blows the spray out as fine droplets 25 to 50 ft, so it can coat both sides of the leaves in a hedge or tree. They suit mosquito control, orchards and nurseries, and they are loud and heavy.
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Top Picks
Greenworks 24V 4 Gallon
A low-cost 4-gallon kit for homeowners already on the Greenworks 24V battery.
Amazon $149.89$149.89
4 gal70 PSIIncluded
Shop by Type
4 gallons and up
16 rankedBattery backpack sprayers with a 4 to 4.5 gallon tank, the standard size for lawns, acreage and professional spraying.
Top rated: PetraTools HD4000 $199.99
Under 4 gallons
4 rankedBattery backpack sprayers with a 2.5 to 3 gallon tank, lighter to carry for pest control and smaller yards.
Top rated: PetraTools HD3000 $179.99
Mist blowers
6 rankedGas backpack mist blowers that blow spray as a fine mist into trees, hedges and dense vegetation, for mosquito control and orchard work.
Top rated: Prorun PMB2884 $379
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Best Battery Backpack Sprayers, 4 Gallons and Up
- PetraTools HD4000#1 of 16Full review
A 4-gallon sprayer with battery and charger that runs all day on a charge, for homeowners and small crews spraying large lawns or acreage.
Amazon $199.99$199.994 gal90 PSIIncluded - My4Sons M4 Agitator#2 of 16Full review
The M4 with a built-in agitator, for anyone spraying powders or mixes that settle in the tank.
Amazon $299.99$299.994 gal80 PSIIncluded - Greenworks 80V 4 Gallon#3 of 16Full review
A low-priced 4-gallon kit with a long runtime, for owners of Greenworks 80V tools.
Amazon $189.89$189.894 gal70 PSIIncluded - Greenworks 60V 4 Gallon#4 of 16Full review
A 4-gallon kit for owners of Greenworks 60V yard tools.
Amazon $249.99$249.994 gal70 PSIIncluded - Greenworks 24V 4 Gallon#5 of 16Full review
A low-cost 4-gallon kit for homeowners already on the Greenworks 24V battery.
Amazon $149.89$149.894 gal70 PSIIncluded
Best Compact Battery Backpack Sprayers Under 4 Gallons
- PetraTools HD3000#1 of 4Full review
A smaller, lighter PetraTools sprayer for yards where 4 gallons is more than you need.
Amazon $179.99$179.993 gal90 PSIIncluded - Makita XSU01SM1 2.6 Gallon Kit#2 of 4Full review
A compact kit for Makita owners who want a smaller tank with a long runtime.
Amazon $464$4642.6 gal73 PSIIncluded - B&G Poly Valve 2.5 Gallon#3 of 4Full review
The lower-priced B&G with a poly valve, for pest and lawn treatments around a home.
Amazon $212.99$212.992.5 gal95 PSIIncluded - B&G Extenda-Ban 2.5 Gallon#4 of 4Full review
A pest-control sprayer with B&G’s brass Extenda-Ban valve, for professionals treating around buildings.
Amazon $352.99$352.992.5 gal95 PSIIncluded
Best Backpack Mist Blowers
- Prorun PMB2884#1 of 6Full review
A big 75.6 cc three-in-one mist blower, for owners who want the longest throw for the price.
Amazon $379$3794 gal50 ft reachGas - PROYAMA 51.7cc Mist Duster#2 of 6Full review
A budget gas mister and duster for occasional mosquito and garden spraying.
Amazon $199$1993.7 gal40 ft reachGas - Invatech Italia 915#3 of 6Full review
A high-output gas mist blower with a 4-gallon tank, for mosquito control and spraying tall vegetation.
Amazon $402$4024 gal39 ft reachGas - Invatech Italia 868#4 of 6Full review
A lighter-engined Invatech mister and duster, for mosquito and pest control around a property.
Amazon $349$349-39 ft reachGas - Tomahawk Power TMD14-2#5 of 6Full review
A lighter gas fogger and blower for treating a yard of an acre or so.
Amazon $349.99$349.993.7 gal25 ft reachGas
How We Rank
Each product is ranked against others of the same type, and scored on its price per gallon of tank, tank size, spray power, runtime (for sprayers) or airflow (for mist blowers), its features and its warranty.
| Factor | Measures | Weight |
|---|---|---|
| Value | price per gallon of tank | 25% |
| Tank size | chemical tank capacity | 10% |
| Spray power | maximum pressure for sprayers, horizontal mist reach for mist blowers | 20% |
| Runtime or airflow | runtime per charge for sprayers, airflow for mist blowers | 20% |
| Features | battery included, pressure control, nozzles, metal wand, agitator and gauge (sprayers); dosage control, dusting and anti-vibration (mist blowers) | 15% |
| Warranty | warranty length | 10% |
How we rank explains each factor in full.