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HD4100 Battery Operated Backpack Sprayer - 4 Gallons

Original price $199.99 - Original price $199.99
Original price
$199.99 - $199.99
Current price $199.99

PetraTools HD4100 Battery Operated Backpack Sprayer - with a sturdy 4-gallon tank, you can tackle all your spray jobs without interruption. Engineered with a powerful battery that can last up to 6-8 hrs. on a single charge! It has a wide coverage capability that makes it perfect for gardening, fertilizing, and weed killer.

  • #1 Best Selling Cart Sprayer on Amazon
  • 30-Day Money-Back Guarantee
  • 1 Year Warranty
  • Free Shipping with 2 to 3 Days FedEx Shipping
  • Guaranteed Post-Purchase Support
  • American Company




You hate buying a tool and getting no support. We get it. We did too. That’s why PetraTools provides industry leading sprayer support.


No “distributors” or hoops to jump through. Those other guys love to pass you off to their regional “distribution”. We make our sprayers AND support you through your jobs.

30-Day Money Back Guarantee

Your risk-free purchase is guaranteed with 30-day free returns.

Customer Reviews

Based on 14 reviews
Well made. Good battery life.

Great customer service. I needed a part that they did not sell and Jenalee guided me through it. They sent me it for free because I was still under warranty!

Product works pretty well. Long battery life, good spray pressure, a little bit loud for a hotel lobby watering plants but not obscene. When it’s low on battery power does make an obnoxious beeping sound. But it does run a good eight hours on a battery charge. And takes about the same time to recharge it.

The only thing that bugs me is the length of the spray arm on it. Doesn’t seem to be adjustable. And it’s like 3 feet long. Much longer than is necessary for me. there’s no segment to remove in the middle that would shorten it.

But it is a good product. Good customer service. Thanks!

Easy to use

After two hand pumped sprayers this is a dramatic improvement. Money saved by spraying myself easily pays for the sprayer. Appears to be well designed and constructed.

Robert Brillant
Hi quality and it works as advertised!

Carpenter bee insecticide, Roundup weed killer and wooden deck cleaner/brightner/neutralizer. Works
flawlessly. Very pleased.

Marie Whitney
This is a great sprayer!!

This is a great sprayer. No more pumping and it reaches a good distance. I have used it for spraying fruit tree, for cleaning my fence, for spraying to get rid of weeds. It does an awesome job and I'm so glad that I purchased this!!

Great pump

It's not a bad pump how ever after a while using it the battery life span Has shorter drastically.


Customer service contact me. And after talking back and forward we got to the conclusion that ny unit was probably an isolated issue. They decide to send me another one at no cost. Customer service is awesome as well their warranty even after 30 days return in close. Definely giving you Pease of mind. Love that

Family Owned American Company

Located in the heart of Carlisle, Pennsylvania, we are a family owned and operated company that’s dedicated to our products and customers. With warehouse locations in Pennsylvania, Texas and Washington, we ship orders same-day*. *same-day shipping occurs most days Monday – Friday for orders before 10am est.