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Availability:
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Arrives
Wednesday, Oct 28
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Style: HD4000
Features
- 6-8 Hours Long Battery Life: No more pumping with the HD4000 battery powered sprayer! The 12V8AH battery pumps 200+ gallons per charge and lasts 4X longer than 2.0 lithium batteries. Its perfect for large-scale operations with continuous, hassle-free performance.
- American Family-Owned & 24/7 USA Support: Since 2019, PetraTools has been turning customers into fans with the durable, and long-lasting performance of our battery back pack sprayer 4 gallon. Backed by 100% customer satisfaction, we are ready to assist you 24/7.
- Double-Padded Straps and Back Pad for Maximum Comfort: Whether you're a professional or a DIY homeowner with large lawns, gardens, or farms, this electric backpack sprayer has durable straps and a squeeze handle with a locking feature to reduce user fatigue.
- Weed Sprayer Battery Operated with Adjustable Pressure 40-90 PSI & 6 Versatile Nozzles: From misting to powerful streams, the battery-operated sprayer features adjustable nozzles and pressure control, allowing you to tailor the spray for watering, fertilizers, or weedkiller.
- Heavy-Duty Built for Leak-Free Operation: The new HD extendable wand (34.5 inches) and wide-mouth lid of the backpack sprayer battery powered allow easy filling and cleaning. The translucent tank with a gallon marker monitors liquid levels while the screen filter prevents clogs.
Description
We empower DIYers to achieve professional results Our team is here to help you with any questions or concerns. Give us a call toll-free, Mon - Fri | 9am - 6pm EST. Our headquarters is located in Carlisle, Pennsylvania where our customer care team is always waiting to help. We offer free returns and warranties on our products. If you ever have a problem, simply call our 800# and our friendly team will take care of it for you - GUARANTEED! Our team is here to help you with any questions or concerns. Give us a call toll-free Mon - Fri | 9am - 6pm EST. HD4000 4 Gal Sprayer HD3000 3 Gal Sprayer HD5000 6.5 Gal Sprayer HD2000-S 2 Gal Sprayer HD1000-S 1 Gal Sprayer
Brand: Petra
Tank Volume: 4 gallons
Color: White and Orange
Recommended Uses For Product: Pest Control, Watering, Weed Control
Material: HDPE
Brand Name: Petra
Recommended Uses For Product: Pest Control, Watering, Weed Control
Included Components: 6 Different Nozzles, Battery Charger, Measuring Cup, Premium Hose, Premium Long Life Battery
Model Name: HD4000
Model Number: PT-1400
UPC: 850000193079
Number of Items: 1
Number of Packs: 1
Unit Count: 1 Count
Manufacturer: Petra
Manufacturer Part Number: PT-1400
Tank Volume: 4 gallons
Item Dimensions W x H: 9.2"W x 20.8"H
Hose Length: 48 inches
Material Type: HDPE
Item Highlight: Electric Sprayer for Lawn & Garden w/ Battery Meter, Adjustable 90 PSI & Padded Straps - For Weed/Pest Control, Fertilizing
Color: White and Orange
Style Name: HD4000
Power Source: Battery Powered
Maximum Pressure: 90 psi
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Oct 28
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: HD4000
Kicked my pump sprayer to the basement, this is now my go to for everything from concrete sealer to weed killer to tick spray. I charged it when new, I'm on acreage, used it all summer for various projects, never a hiccup, works awesome, kills your back but you're carrying weight when it's full of liquid....never had to recharge it, it's still like 50% charged!!! It's not made in America but at least it's designed here and frankly I don't think I'd change a thing on it short of buying the one on wheels. I could see this even surviving years of commercial level use/abuse. Sprays really nice, love the adjustability of pump pressure and nozzle variations
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Reviewed in the United States on September 30, 2026 by Peter Oster III
Style: HD4000
My Petra HD4000 sprayer was very simple to set up by twisting a few pieces together. The spray time provided by the battery far exceeds my needs for around my property. It is comfortable for me to wear using the backpack straps. I like the very wide opening, which makes it easy to pour in solutions. The unit itself is not heavy. I don't usually fill it up if I don't want to lug around the weight. I am very happy with my purchase and feel that it is the best available. When setting it up, I did need to ask a question, so I can report that it was very easy to get customer support by phone. Further, it was obvious that they know what they're talking about, and that they care about their customers. Updated March 02, 2023: I ended up leaving some kind of solution in my tank over winter. I use it mostly for weed killer, but it could have been just soap water. Or, I don't know what I may have had in there. When I went to use it today, it would spray out for only like three seconds and then slowed to a very lite weak dripping stream and then would stop altogether. The motor seemed strong. The battery was good, as it had been on the charger for a couple of days. I wondered if something may be clogging it up, like debris or maybe some sort of mineral crystallization which may have formed over the winter. I know you're supposed to clean it out after each use and clean it up before storing it, but it got pushed to the side and forgotten while tending to other matters I suppose. I'm not a perfect human. Anyway, it was very simple and amazingly quick to reach a rep at the company. I used their website chat feature, which is my favorite form of customer support. They do it really well. The rep suggested doing a priming with some warm soapy water, so I emptied the winter contents out of the tank and was surprised to see something covering the hole at the bottom of the tank (see picture). There was some kind of whiteish, fleshy, fimly goop congregated around the hole at the center, bottom of the tank which runs out to the sprayer head. I put on a glove and reached in to clear it. I pulled out a snotty bunch of goo. It had filled in the small round perforated cover/filter over the hole, which just snaps off like a plastic lid. There was additional goop beyond the filter pooled up inside that hole. I used a screwdriver and cleared it all out that I could tell. I then rinsed the filter/cap and ran a batch of warm soapy water through the unit. It immediately started running properly again, as if nothing had ever happened. So, luckily that was simple and a testament to a good product. I'm really happy with the sprayer and think with proper and regular cleaning this time, it will last a good long time.
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Reviewed in the United States on August 16, 2022 by Here's What I Think
Style: HD4000
this is a quality sprayer. I tried hard to find a small sprayer with wheels, but they were all overpriced junk. Finally I decided to get a quality backpack sprayer and atach it to our little hand dolly. It works great. I just took off all the shoulder harness and tossed it. This is a powerful sprayer and they have thought of everything.......good battery, shut off controls with pressure variation, extra tips for every type of spraying, easy clean filter, even a battery monitor light. get this one!
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Reviewed in the United States on August 29, 2026 by Ken E Miller
Style: HD4000
Heres an update on my initial review below. Im changing my review to 5 stars because you can’t put a price on customer service. I got a callback today from customer service and they help me solve my problem with the drip they have been very helpful and very approachable. I think with that said this product is worthy of five stars I have used several loads through the sprayer and it has worked great. Save yourself a few bucks and give them a chance it’s a good power sprayer! Initial review I’m giving this three stars for now until I get things figured out. When I received this item it was easy to put together it wasn’t quite as sturdy as I had hoped and I realized after putting water in it to test it but it only sprayed a very strong stream it was hard to dial the pressure back to the spot spraying around other plants without the fear of heavy mist overspray. When I received this item it was easy to put together it wasn’t quite as sturdy as I had hoped and I realized after putting water in it to test it that it only sprayed a very strong stream it was hard to dial the pressure back to the spot spraying around other plants without the fear of heavy miss overspray. I contacted the company and they recommended I try buying one of the other three nozzles on their website so I did purchase them they were only a few bucks each and it ended up the flex nozzle with the breast hip you are able to adjust the spray on it someone and then also you can use the silver knob to turn the unit on to do the lowest pressure possible and that seem to do the trick I have actually sprayed about five loads of weed killer through it and it has operated really nice except I have a small leak whenever I’m running the pump it wants to drip out of the bottom and down the back of my leg I contacted the company and they recommended I try buying one of their other three nozzles on their website so I did purchase them they were only a few bucks each and it ended up the flex nozzle with the brass tip you were able to adjust the spray on it somewhere and then also you can use the silver knob to turn the unit on to do the lowest pressure possible and that seem to do the trick I have actually sprayed about five loads of weed killer through it and it has operated really nice except I have a small leak whenever I’m running the pump it wants to drip out of the bottom and down the back of my leg And I’m using ground up so I can’t have that. I called the company and reported it and I’m waiting on them to call me back for a remedy I assume they’ll either send me a replacement I believe they’ll make it right so far so good with customer service. I will try to update this review once I get my problems remedied. I’m still on the fence as to whether I would buy this again $200 was not that bad you get what you pay for I think as long as you’re careful with this unit and don’t bang it around it’ll be OK. I’m not using mine for commercial work I’m using it for residential I have to maintain about 4 acres of land and I needed to get away from the hand pump type backpack sprayer.
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Reviewed in the United States on August 4, 2020 by Tim Henderson
Style: HD4000
Hand cranking 9 gallons of spray was killing my shoulder. Enter the HD4000. I'll get into details below but i am very happy with this purchase. Quick likes: very comfortable wand that does not drip, good selection of nozzles, easy to fill, adjustable pressure that is easy to reach while on your back, comes with extra seals. Some dislikes: plastic fittings with fine threads (especially for the nozzles) could be susceptible to damage. The pump to hose connection works loose - then you get wet and cold. The harness is ok but if I was doing 24 gallons in a day, is want a better harness. Some details.... The trigger - no drips. You let go, it stops. If I'm walking around with roundup i can't have drips. Extremely comfortable. Small complaint - I locked by mistake and had a hard time unlocking quickly because i wasn't used to it yet. The harness - it gets the job done. To keep pricing competitive I'd be ok with a pro harness upgrade for those that want it. 4 gallons of sloshing water is heavy - having a harness with some shock absorption and wider straps with much better padding would be something i would pay extra for as an option. If you only use it a couple times a month for one or two tanks, the price is right. Pressure adjustment - very useful and easy to reach while wearing the pack. It will shoot very far using the brass nozzle at the highest pressure. A far exceeds expectations on convenience and function. I feel like I'm going to lose the charger - I'd like a durable pouch the can get attached to the sprayer when you are not using it. One open air side for anything wet and a sealed section for the charger. I can put it in a ziploc bag and leave inside sprayer when not in use but don't like putting stuff inside the tank. Not a deal breaker though. The battery - i wanted a lithium ion but form factors are all unique to vendor. I use Dewalt and got to thinking that a charger/battery system is to expensive and the industry standard sealed lead acid battery can be purchased anywhere for cheap. The heaviest portion of the sprayer is the product and the slight extra weight of the battery is insignificant compared to the product. Long term cost wins and these batteries are proven performers. Cleaning - i try to not make to much of what i am using so that i run out. Very easy to dump out excess from either side and rinse, add a little water and run through to clean the wand. I leave both caps off to dry it out. Easy. Durability - don't know yet and i am not a daily user. I expect to have to replace the battery about every 3 years - same battery my alarm system uses - cheap, standard, no big deal and it could last longer. More likely to die from lack of regular use than from wearing out. Seals seem like good quality and you get a bag full of extras. Bottom line - i would buy again and stand by comments that I'd pay extra for a pro harness. You want to have a good price point to have a larger market, so the upgraded harness as an extra makes sense.
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Reviewed in the United States on October 20, 2020 by Gary C
Style: HD4000
I have never encountered a better-run company or a more efficient product than this sprayer. Since purchasing it in 2022, I have used it extensively for various gardening and landscaping tasks. It has consistently performed beautifully, providing excellent coverage and a steady flow of liquid, which has greatly facilitated my outdoor projects during the spring and summer months. The only issue I faced was in 2026 when the battery unexpectedly stopped accepting a charge. Given the frequency of use, I had anticipated some wear and tear, but I was impressed that it lasted for several years without any significant problems. When I reached out to customer service to report the battery issue, I had the pleasure of speaking with Ruth. From the moment I started the call, she was incredibly friendly and professional. She listened attentively to my concerns and reassured me that a replacement battery would be shipped out immediately, which I greatly appreciated. Finding a company that stands behind its products for such a long time is rare, and it speaks volumes about their commitment to customer satisfaction. Overall, I highly recommend this sprayer to anyone looking for a reliable and efficient tool for their gardening needs. The combination of quality performance and exceptional customer service has certainly earned my loyalty.
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Reviewed in the United States on May 27, 2026 by Alvin
Style: HD4000
While this pump is not commercial grade I do use them for commercial projects knowing I will need to replace parts or the entire pump from time to time. I have purchased at least 8 of them over the course of 3-4 years. My entire company uses them daily for pest control treatments and as you know employees can be very hard on equipment that they don't have to buy. I continue to purchase these pumps because the company is FIRST RATE when it comes to customer service. They have never failed to respond to an issue quickly and offer helpful solutions. Another thing that I like is the manufacturer listens to customer feed back and is continually improving design and durability. Case in point - They added a comfortable back plate to the original design. They beefed up the hose assembly although it could still be more sturdy. They added a metal spray tip in addition to the plastic ones. They did improve the strap design, but is still needs work. The pumps themselves work really well. They are easy to use and the stream can reach 20-25' and beyond when fully charged. The battery usually lasts 4-5 hours with intermittent use of 15 minutes at at time before the pump begins to noticeably decline in pressure. They can last around 8 hours of total use on one charge and that beats the heck out of wearing out your shoulder from pumping! Things I have noticed about this pump - *the tank cannot be lifted by the tank handle without cracking the tank around it. *the straps do not hold well unless they are looped back on themselves more than once. you will want to keep an eye on the straps and tighten them as needed or the pump will fall off your back and likely crack when it hits the ground. *the supply hose has a tendency to crack near the connections after some time. This is an easy fix, though. *the connection from the hose to the tank comes loose very easily - This can be remedied by tightening the nut inside the battery housing before first use. *the door to the battery will break at the hinges, but will still snap into place and it does not prevent the pump from being used PROs ease of use price customer service CONs some durability issues when used daily for commercial projects overall for the price this is a very good product
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Reviewed in the United States on December 6, 2024 by Dawn
Style: HD4000
OK i purchased one of these in May of 2025 and it has worked perfectly other than the pump cycles intermittently even when im not pulling the spray trigger. So I ordered another this year. This new one originally worked great right out of the box on the first day. I primed it and then put it away. However, the next day when I wanted to actually spray some weeds with it, the battery was dead (after charging it for 8 hrs straight initially), and the pump was no longer working properly. When i turned the switch on it just made a weird buzzing noise instead of the "pumping" noise it should have been making. Tried repriming with all the recommended procedures. No luck. Contacted Chloe and Christina over at Petra Tools customer service via their chat. Chloe immediately got back to me, identified the problem as a bad pump and then shipped me a new Sprayer no questions asked! I even asked her about the cycling pump problem that my older sprayer was having and she without hesitation told me they'd ship me a replacement spray for that one two! So two new sprayers coming my way! Highly recommend these sprayers. They are good quality, and work great and the customer service is fantastic with Chloe and Christina! Great product and excellent customer service. Keep it up!
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Reviewed in the United States on April 30, 2026 by Stephen