Petra HD4000 Battery Backpack Sprayer — 4‑Gallon, 6 Nozzles, 6–8 hr Runtime; Adjustable 40–90 PSI and Extendable Wand

The PetraTools HD4000 is a battery-powered 4-gallon backpack sprayer that delivers 6–8 hours of continuous spraying with adjustable pressure and six interchangeable nozzles.

The HD4000 pairs a high-capacity 12V8AH battery with a durable, leak-resistant tank and an extendable wand to handle gardens, landscapes, and small farms without constant pumping or refilling. Designed for professional and homeowner use, it balances long runtime, user comfort, and precise spray control for watering, fertilizing, and weed control tasks.

How long will the battery actually run during typical use?

On a full charge the 12V8AH battery powers the sprayer for roughly 6–8 hours depending on pressure setting and nozzle choice. Lower pressure and wider nozzles extend runtime, while high-pressure narrow streams use more power faster.

• 200+ gallons per charge under moderate settings
• Adjustable 40–90 PSI to tune runtime versus spray force
• 4X longer cycle life compared with many 2.0Ah lithium packs

What spray patterns and control does the HD4000 give me?

The sprayer includes six versatile nozzles and a pressure regulator so you can switch from a fine mist to a focused jet in seconds. This flexibility makes the unit useful for delicate foliar feeding and for targeted weed treatments alike.

• Six interchangeable nozzles for mist, fan, cone, and jet patterns
• Pressure-adjustable dial from 40 to 90 PSI for precise application
• Extendable 34.5-inch wand for reach and reduced bending

Is the HD4000 comfortable for long jobs and easy to maintain?

Comfort features include double-padded shoulder straps and a cushioned back pad to reduce fatigue during extended use. The wide-mouth lid, translucent tank with gallon markers, and a screen filter simplify filling, monitoring, and cleaning tasks.

• Double-padded straps and squeeze-handle lock for secure carry
• Translucent 4-gallon tank with visible level markers
• Wide-mouth opening and screen filter for easy maintenance

What makes this sprayer durable and reliable on the job?

The HD4000 is engineered for leak-free operation with heavy-duty fittings and a robust wand. PetraTools emphasizes American family-owned support and 24/7 US-based customer service for parts or troubleshooting.

• Hard-wearing materials and sealed components to prevent leaks
• Extendable wand and strong connectors for long-term use
• 24/7 USA-based support from PetraTools since 2019

Who is this for: The PetraTools HD4000 is aimed at landscapers, groundskeepers, and homeowners who need a battery-powered sprayer that reduces manual pumping and covers larger areas between charges. It’s a solid fit for users who want adjustable pressure, multiple nozzle options, and a comfortable backpack design for multi-hour jobs.