Ecarke Battery Backpack Sprayer 4.2‑Gal, DEWALT 20V‑Compatible — One‑Touch Auto Mixer & 0–100 PSI

The Ecarke Battery Powered Backpack Sprayer is a 4.2‑gallon, DEWALT 20V‑compatible sprayer with one‑touch automatic mixing, adjustable 0–100 PSI pressure, and a 42" leak‑proof metal wand for extended yardwork efficiency.

Built for homeowners, landscapers, and small‑acre farmers, this cordless backpack sprayer combines a large-capacity tank with a built‑in auto mixer and battery compatibility to reduce prep time and improve spray consistency. The unit ships as a bare sprayer (battery not included) and features a digital voltage display, an over‑discharge protection function, and padded harnesses for comfortable all‑day use.

How does the one‑touch auto mixing work and why does it matter?

The one‑touch auto mixer blends powders, concentrates, and liquids inside the tank so you don’t have to stir manually. That prevents clumping, reduces wasted product, and produces a uniform solution that sprays evenly across surfaces.

• Instant mixing at the press of a button—no separate agitator needed.
• Accepts powders and liquids for fertilizers, cleaners, and concentrates.
• Reduces sediment and blockages for consistent nozzle performance.

What power options and runtime can I expect with DEWALT 20V batteries?

This sprayer accepts DEWALT 20V batteries (sold separately) and shows real‑time voltage on a digital readout. It includes a 2.3V over‑discharge auto shut‑off to protect your battery and, when paired with a 4.0Ah battery, can deliver many full‑tank cycles per charge.

• Uses common DEWALT 20V batteries—no proprietary pack required.
• Digital voltage display for monitoring remaining power.
• Auto shut‑off at low voltage extends battery lifespan.

How much area will one 4.2‑gallon tank cover, and how comfortable is it to carry?

The seamless 4.2‑gallon tank reduces refill frequency for medium to large yards and has a wide‑mouth lid for easy, spill‑free filling. The sprayer weighs about 7 lbs empty and includes padded shoulder straps plus waist support so you can work longer with less fatigue.

• 4.2‑gallon capacity for fewer interruptions on bigger jobs.
• Wide opening for quick pouring and simple rinsing after use.
• Padded harness and ergonomic design for day‑long comfort.

What spray control and accessories come with the sprayer?

Adjustable pressure from 0 to 100 PSI allows everything from fine mist to targeted jet streams, controlled via a dual‑mode knob and green default switch. The unit ships with a robust stainless steel telescopic wand that reaches 42" and six interchangeable nozzles stored in an onboard compartment so accessories stay organized and on hand.

• 0–100 PSI adjustable control for misting, spraying, or pinpoint application.
• 42" leak‑proof metal wand with metal fittings for durability.
• Six nozzle options and built‑in storage to prevent lost parts.

Who is this for? This Ecarke battery backpack sprayer is suited for homeowners with medium to large yards, landscape contractors, greenhouse operators, and small‑scale growers who want cordless convenience, consistent mixing, and versatile spray control. It’s ideal when you already use DEWALT 20V batteries or want a bare unit that pairs with common tool batteries. Note: the product ships brand new but water‑tested at the factory; rinse before first use. A one‑year warranty and 24/7 support are included for assistance.