Product Description

The RedMax 4-Gallon Battery Backpack Sprayer is a professional-grade solution designed for efficiency, comfort, and consistent performance. Powered by an 18V lithium-ion battery, this sprayer eliminates manual pumping—allowing you to maintain steady pressure with the push of a button.

Built with an internal “no leak” pump system and durable components, it’s ideal for applying herbicides, pesticides, fertilizers, and cleaning solutions. Whether you’re a landscaping professional or maintaining large properties, this sprayer delivers reliable, all-day performance with minimal effort.

Key Features

• 18V battery-powered system – no manual pumping required
• Up to 4 hours runtime / ~50 gallons per charge for extended use
• 150 PSI max pressure with 25 PSI regulator for consistent application
• Internal “No Leak” pump design for safer operation
• Includes battery & charger for out-of-box use
• 50” reinforced PVC hose with strain relief prevents kinking
• 25” stainless steel wand with poly liner for durability
• Multi-nozzle kit (3 included) for different spray patterns
• Impact-resistant battery compartment protects electronics from chemicals
• Easy-access filters reduce clogging and maintenance issues

Specifications

• Tank capacity: 4 gallons
• Power source: 18V rechargeable lithium-ion battery
• Max pressure: 150 PSI
• Regulated pressure: 25 PSI constant output
• Spray distance: Up to ~23 feet
• Runtime: Up to 4 hours or ~50 gallons per charge
• Hose length: 50 inches
• Wand length: 25 inches (stainless steel)
• Nozzles: 3 included (adjustable + fan types)
• Pump type: Internal sealed “no leak” system
• Battery charge time: ~3.5 hours
• Warranty: 1 year

Ideal For

• Lawn care and landscaping professionals
• Weed control, fertilizing, and pest control
• Large residential or commercial properties
• Anyone wanting faster, easier spraying without manual pumping

Why Choose This Sprayer

The RedMax battery backpack sprayer stands out for its consistent pressure, zero pumping, and long runtime. Compared to manual sprayers, it significantly reduces fatigue while improving coverage and efficiency—making it a smart upgrade for both professionals and serious homeowners.