No pumping. No sore arm. Just spraying.
Padextools HD4000 Battery Powered Backpack Sprayer
Padextools HD4000 Battery Powered Backpack Sprayer
- 6–8 Hours of Non-Stop Spraying — one charge covers 200+ gallons, most properties in a single session
- 6 Pro-Grade Nozzles Included — from fine mist to long-range jet, swap in seconds for any job
- Zero-Fatigue Carry — double-padded straps and a ventilated back pad, and you never pump again
- 30-Day Money-Back Guarantee — try it on your own yard, risk-free
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Padextools HD4000 Battery Powered Backpack Sprayer

Never Pump Again
6-8 Hours Long Battery Life
The battery pumps 200+ gallons per charge — enough to cover most properties without stopping to recharge.
Maximum Comfort & Support
Double-padded straps and a ventilated back pad spread the weight to reduce fatigue all day long.
Heavy-Duty, Leak-Free Design
The HD wand, wide-mouth lid and inline screen filter are built to take a beating and keep a tight seal.
American Family Business & US-Based Support
Padex is a family-owned American business with responsive, US-based customer support — not an overseas call center.
Our Customer Videos
“24 hours ago my lawn looked like this.”
One charge, the whole property done.
Less Stopping. More Spraying.
6 Interchangeable Nozzles for Every Application
Stop buying separate sprayers for different tasks. Swap nozzles in seconds to match the job in front of you — from a wide shower head for soaking beds to a tight stream for spot-treating weeds.
- Adjustable nozzle: fine mist to concentrated stream
- Double-mist & single-mist for delicate, even coverage
- Fan flat tip for paths and patios
- Solid brass tip for the toughest chemicals
Comfort That Lasts All Day Long
Traditional sprayers leave you with aching shoulders after the first hour. Every contact point is engineered to take the load off your body so the last tank feels like the first.
- Double-padded shoulder straps distribute the full load
- Ventilated back pad reduces sweaty discomfort
- Locking trigger keeps your hand relaxed
- Adjustable straps fit any body size
Reach Higher. Spray Farther.
Stop climbing ladders or leaving tall areas untreated. The extended wand and adjustable pressure put more area within reach from where you're standing.
- 34.5" heavy-duty wand reaches tall shrubs & eaves
- 4 ft hose reduces bending for low garden beds
- Adjustable 40–90 PSI boosts spray distance
- Wand built to shrug off knocks and drops
No Drips. No Leaks. Just a Clean Spray Every Time.
Nothing ruins a job like chemical running down your back. Every seal, gasket and fitting is built to stay sealed and dependable through repeated use.
- Heavy-duty build resists leaks and weak points
- Metal hose fittings stay tighter, longer
- Cleaner spraying means less product waste
- Made for repeated use without constant fixing
Compare
Which Sprayer Suits You Best?
| Padex HD Backpack | Pump / Generic Sprayer | |
|---|---|---|
| Tank capacity | 4 gallons | 1–2 gallons |
| Power | 12V battery — zero pumping | Constant hand pumping |
| Runtime per charge | 6–8 hrs / 200+ gal | Your arm gives out first |
| Adjustable pressure | Up to 90 PSI | Drops as you tire |
| Nozzles included | 6 pro-grade | 1 |
| Carry comfort | ✓ | ✕ |
| Digital battery meter | ✓ | ✕ |
| Warranty & US support | ✓ | ✕ |
Questions?
Frequently Asked Questions
How long does the battery last on one charge?
A full charge delivers 6–8 hours of continuous spraying — roughly 200+ gallons — which covers most properties in a single session.
How long does it take to recharge?
About 6–8 hours for a full charge. We recommend charging overnight so it's ready whenever you are. The digital meter tells you exactly how much charge is left.
What's included in the box?
The sprayer, 12V rechargeable battery, charger, the heavy-duty wand and hose, and all six interchangeable nozzles. No extra purchases needed to get started.
What if a nozzle clogs?
Clogs are almost always debris in the tank. Use the included inline screen filter, and rinse the nozzle under water. A quick flush after each use prevents it entirely.
Can I adjust the flow and spray pattern?
Yes. Pressure is adjustable up to 90 PSI, and the six nozzles cover everything from a fine mist to a long-range jet. You dial in the exact spray for the job.
What chemicals can I use?
It handles most water-based herbicides, pesticides, fertilizers and cleaning solutions. Always follow the chemical label's dilution and never use solvent-based products not rated for plastic sprayers.
How do I clean and flush it?
Empty any leftover mix, fill the tank with clean water, and run it through the wand for 30–60 seconds. Wipe down the lid and store it dry. That's it.
Will it really reduce fatigue?
Yes — there's zero pumping, and the double-padded straps plus ventilated back pad spread the load. Most customers tell us the difference versus a manual sprayer is night and day.
Our Promise
The Padex Brand Promise
We stand behind every sprayer we ship. If it doesn't make your work easier, we'll make it right.
- 30-Day Free Returns
- 1 Year Warranty
- Friendly US-Based Support
What Customers Are Saying
- 5★ 79%
- 4★ 19%
- 3★ 1%
- 2★ 1%
- 1★ 0%
Sprayed my whole half-acre and the battery wasn't even close to dead. No more pumping until my arm falls off.
The six nozzles are the real deal. Fan tip for the driveway, mist for the garden — I do it all with one tank.
I'm 63 and the padded straps make a huge difference. I can actually carry a full tank without my back screaming.
Built like a tank. The wand reaches my second-story eaves and there's not a single drip down my back.
Charged it once, sprayed for hours across the orchard. Best money I've spent on yard gear in years.
Works great. Took me a minute to learn the nozzle swaps, but once I did it's effortless. Wish it came with a cart.



