A Black Friday "deal" is often a normal price next to an inflated list price. Here a battery backpack sprayer only counts as on sale when its checked price is at least 15% below its own typical price over the last 90 days, from our price history. The best-rated models are listed too, since many are good value without a sale. See deals in every category.
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.
On sale now
No battery backpack sprayer rated 3.8 or higher is 15% or more below its typical price at the last price check (November 9, 2026). Prices are rechecked through the sales; this list updates when one drops. See the recent price changes.
Best buys at their normal price
The top-rated models in each type. A sale on one of these is worth more than a big discount on a weaker model.
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
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
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
