VAXMAY 4 Gallon Battery Backpack Sprayer — 100 PSI Cordless with 2.6Ah Battery & Telescopic Wand

The VAXMAY 4 Gallon Battery Powered Backpack Sprayer is a cordless electric garden sprayer that delivers up to 100 PSI, fits Makita 18V batteries, and includes a 2.6Ah battery, charger, telescopic wand and five nozzles for versatile yard work.

Designed for homeowners, landscapers and small-acreage farmers who want cordless convenience, the VAXMAY backpack sprayer combines a lightweight 4-gallon tank with a high-speed motor and an adjustable PSI control. It includes a transparent tank with level markings, comfortable padded straps and waist support, plus an upgraded storage area for accessories. The unit ships with a 2.6Ah battery and charger and is also compatible with Makita 18V batteries, giving you flexible power options for longer jobs.

How much spraying time can I expect on a single charge?

Run-time depends on pressure settings and spray pattern, but VAXMAY rates this model to spray the equivalent of 16 full tanks on one charge under typical conditions. The included 2.6Ah 21V battery and the option to use Makita 18V batteries extends usable time and reduces downtime.

• Factory test: up to 16 tank cycles on one charge in mixed use
• Digital voltage display for real‑time battery monitoring
• Automatic shutoff when voltage drops below 14V to protect battery life
• Compatibility with Makita 18V batteries for easy swap and extended runtime

What pressure and spray options does it offer?

The sprayer houses a 3800 rpm motor capable of producing up to 100 PSI, with an adjustable PSI knob so you can dial in light misting or a more forceful stream for reach. Five interchangeable nozzles and a telescopic wand that extends to 39.3 inches let you match spray pattern and distance to the task.

• Maximum pressure: 100 PSI (7 bar) for long-range spray and thicker solutions
• Adjustable pressure knob for delicate or heavy work
• Five nozzle types included for fine mist, cone, fan and targeted spraying
• Telescopic wand with trigger extends to 39.3 in for high or hard-to-reach spots

Is the backpack comfortable for extended use?

Comfort features reduce fatigue for long jobs: widened, thickened shoulder straps, cushioned waist support and an ergonomic harness distribute weight across hips and shoulders. A translucent tank with scale markings helps you monitor liquid levels so you don’t overfill or run unexpectedly dry.

• Thickened, widened shoulder straps for better weight distribution
• Unique waist support with cushioning to minimize back strain
• Translucent tank scale for quick visual liquid checks
• Built-in storage compartment for spare nozzles, keys or small tools

What tasks can I use this sprayer for?

The VAXMAY backpack sprayer is built for a variety of outdoor chores where powered spraying speeds work and improves coverage. Use it for lawn fertilizers, herbicides, foliar feeds, cleaning, rinsing and other water-based solutions—avoiding corrosive chemicals not recommended for plastic pumps.

• Weed control and fertilizer applications for yards and small fields
• Fence, patio and vehicle rinsing or light cleaning tasks
• Pet bathing and gentle misting for garden plants
• Suitable for horticulture, landscaping and small‑scale agriculture when using compatible solutions

Who is this for? The VAXMAY 4 Gallon Battery Backpack Sprayer is aimed at homeowners who want an easy cordless alternative to manual pump sprayers, landscapers and groundskeepers who need quick refill cycles and switchable batteries, and small-scale growers who require an adjustable, mobile sprayer for spot treatments. It’s a practical choice if you need a balance of power, run-time and comfort without hardwired electricity. The sprayer comes with a one-year warranty and 24/7 online support to help with setup or troubleshooting.