Dramm Back Pack Sprayer with Lithium Ion Battery - 4gal - 150psi

Battery Power Delivers Fine Atomization Without Pump Fatigue

The Dramm BP-4 Backpack Sprayer is a rechargeable lithium ion battery-powered sprayer built for professional cultivation applications. Operating at up to 150 PSI, the BP-4 atomizes spray solutions into fine, consistent droplets for coverage and penetration on foliar targets, and the battery-operated pump maintains even flow rates throughout the application, eliminating the pressure fluctuations common with manual pump sprayers.

The 4-gallon capacity hits the sweet spot for extended spot treatment and concentrated application runs, and the quick-change battery system minimizes downtime between charges; operating time on a single battery is approximately 45 minutes, and the package includes a battery and quick charger.

Key Features & Benefits

• 150 PSI maximum operating pressure: High-pressure atomization produces finer droplets for coverage, penetration into dense canopies, and chemical distribution on foliar targets.
• Battery-powered even flow: An electric pump maintains consistent pressure and flow rate throughout the tank, with no pumping variation that could cause uneven application coverage.
• Quick-change lithium ion battery: Fast battery swap allows continuous operation with a spare battery, minimizing downtime between applications.
• 4-gallon capacity: Large enough for extended application runs while remaining comfortable to carry on the back throughout the session.
• 45-minute runtime per battery: Covers significant growing areas on a single charge; spare batteries extend runtime for larger operations.

Who Should Use This

Commercial cultivators, IPM technicians, and greenhouse operators who need consistent, high-pressure spray coverage without the fatigue of manual pumping or the logistics of a cart-mounted unit are the direct fit for the BP-4, particularly for foliar pesticide and fungicide treatments, PGR applications, and targeted spot treatments where coverage uniformity is critical.

About Dramm

Dramm Corporation has manufactured professional spray and application equipment from its Manitowoc, Wisconsin facility for decades, and the BP-4 extends that lineup into rechargeable battery power for growers moving away from manual pump sprayers.

Frequently Asked Questions

How long does the battery last per charge?

Operating time is approximately 45 minutes per battery under normal use conditions. Actual runtime may vary depending on the operating pressure setting and ambient temperature.

How does 150 PSI compare to a standard manual backpack sprayer?

Manual pump backpack sprayers typically operate at 40-60 PSI. The BP-4's 150 PSI maximum produces significantly finer droplet atomization, improving coverage uniformity, canopy penetration, and chemical adhesion on foliar surfaces.

Does the package include a charger?

Yes. The BP-4 package includes the quick-change lithium ion battery and a quick charger for fast turnaround between applications.

Can I use spare batteries to extend runtime?

Yes. The quick-change battery design accommodates spare batteries for uninterrupted operation on large applications, and spare batteries are available separately from Dramm.