Battery Backpack Sprayer 4 Gallon

The Battery Backpack Sprayer 4 Gallon delivers cordless yard power without the pull cords or gas mix.

This 4-gallon battery-powered backpack sprayer is built for weed control, fence-line treatment, deck and patio cleaning, and orchard chores around the home and small farm. A rechargeable 12V battery pushes pressure across a 0 to 94 PSI range, so a single fill can switch from a fine mist for foliar feeding to a focused jet for stubborn algae and grime. The included 8-nozzle set plus 2 wands cover most outdoor tank-sprayer use cases out of the box.

Why this Battery Backpack Sprayer works

• Cordless reach: 12V battery runs the pump so you walk rows, beds, and tree lines without hoses or extension cords.
• Adjustable pressure: 0 to 94 PSI range covers fine misting, broadcast spraying, and concentrated cleaning.
• 8 nozzles, 2 wands: Swap tips for fan, jet, cone, and shower patterns to match liquid herbicides, fertilizers, or wash solutions.
• 4-gallon capacity: Covers larger zones per refill, useful for lawns, pasture spots, and orchard rounds.
• Backpack carry with cart option: Adjustable straps spread the load, and the mobility cart helps when the tank is full.
• Versatile application: Suited for liquid fertilizers, pesticides, herbicides, and general cleaning concentrates.

Specs and details

• Tank capacity: 4 gallons
• Power: 12V rechargeable battery
• Pressure range: 0 to 94 PSI
• Included accessories: 8 nozzles and 2 spray wands
• Carry options: Backpack straps plus wheeled cart
• SKU: D0102HGJCEW

Pair it with our 1-Color Screen Printing Machine for T-Shirts.

Frequently asked questions

How long does the battery last per charge?
Runtime depends on the pressure setting and nozzle used. Lower pressure with a fine nozzle stretches a charge across multiple tank fills, while higher PSI for cleaning draws more current. Charge fully before season-long jobs.

Can I use it for both weed killer and fertilizer?
Yes. The tank handles common liquid herbicides, fertilizers, and pesticides at label dilution. Rinse the tank, wand, and nozzle thoroughly between different chemistries to avoid cross-contamination.

Is the sprayer comfortable for long sessions?
The backpack frame uses padded shoulder straps to distribute the 4-gallon load. For the longest runs, the included cart lets you roll the tank along driveways, walkways, and flat yard sections.

What pressure should I use for spraying weeds?
A medium fan setting in the 30 to 50 PSI range typically gives even coverage on weed foliage without excessive drift. Increase pressure only for cleaning tasks where a jet pattern is needed.