Backpack Sprayers

Battery-powered backpack sprayers

PetraTools battery backpack sprayers eliminate manual pumping and deliver consistent pressure across every spray job. Each model uses a rechargeable lead-acid battery system that runs 2 to 8 hours per charge depending on tank size — significantly longer than comparable lithium-powered sprayers from competitors like Flowzone (3-hour max on Typhoon 2.5) or entry-level models that die after 45 minutes.

Both models ship with multiple professional nozzles, padded comfort straps, adjustable pressure from 40 to 90 PSI, and heavy-duty leak-proof construction. All replacement parts — batteries, pumps, hoses, and O-rings — are stocked individually so your sprayer never becomes disposable.

How to choose your size

The HD3000 holds 3 gallons and works for homeowners with lawns under 10,000 square feet or greenhouse operators who need a lightweight unit for foliar feeding and targeted pest treatment. Its 12V 3.3Ah battery pumps 50+ gallons per charge with a total weight that keeps long sessions comfortable.

The HD4000 holds 4 gallons and is designed for homeowners with lawns over 10,000 square feet, hobby farmers, and lawn care professionals. Its 12V 8Ah battery pumps 200+ gallons per charge. This is the model independently rated as the best overall battery backpack sprayer by Bob Vila (2026 testing) and Outdoor Life.

Quick comparison

Both sprayers share the same nozzle system, wand connector, and valve handle — so accessories are cross-compatible.