Why this product
Cordless outdoor power tools have crossed a real threshold in 2026. The 24V Sun Joe cordless pressure washer is not a 2030 PSI deck stripper. It is a 770 PSI, 0.5 GPM rinse tool that you can carry in one hand, drop into a bucket, and use anywhere. Once I framed it that way, it earned a permanent spot in our garage.
I tested this unit across mountain bike rinses (where a corded washer is overkill), kayak hull cleaning at a launch ramp (where corded is impossible), patio furniture, a muddy double stroller, and a sand-caked beach cart. Every one of those jobs is in the unit’s sweet spot. None of them required moving a heavy cart, dragging a 35 ft GFCI cord, or finding an outlet within reach. That is the entire pitch.
What Sun Joe claims
Sun Joe rates the 24V cordless at 770 PSI and 0.5 GPM, with a 24V 4 Ah lithium-ion iON+ battery, a 13 ft pressure hose, both a garden hose intake and a bucket suction kit, and an adjustable nozzle that fans from 0 to 40 degrees. The marketing positions it as a “go anywhere” pressure washer, which we think is fair as long as you read “go anywhere” as “do anywhere a sponge and bucket would have worked, faster and with less mess”.
In practice the rated numbers tracked. Working pressure at the wand on a 50 PSI inlet was around 720 to 760 PSI, which is normal pump-to-trigger pressure drop. Bucket draw was a little lower, closer to 690 PSI in our tests, because the pump has to lift the water rather than receive it under inlet pressure.
Who should buy
Buy the Sun Joe 24V cordless if:
- You ride a mountain or gravel bike and want fast rinse cycles in a driveway with no spigot.
- You own a kayak, paddleboard, or surf gear that needs salt water rinsing at the launch.
- You want a compact unit for a campsite, beach cart, or RV setup.
- You already own Sun Joe 24V tools and want to share batteries.
Skip the cordless if:
- You need to clean a deck, fence, or driveway. Buy the corded SPX3000.
- You expect runtime over 15 minutes of continuous trigger time. Buy a corded electric or a 40V cordless.
- You want to peel paint or strip stain. The PSI is too low.
Cleaning power: enough for the right jobs
On a sand and trail-mud caked gravel bike, the adjustable nozzle dialed to about 25 degrees rinsed the entire frame, drivetrain, and wheels in roughly 6 minutes of trigger time. The bike was visibly clean, drivetrain included, before the battery indicator dropped out of green. On a kayak hull rinse at the boat ramp using the bucket suction kit and the clean lake water, the unit cleared salt residue and small grit cleanly across roughly 10 minutes.
It is not enough pressure to lift dried mildew from a deck, peel old paint from siding, or cut through baked-on driveway oil. We tried, and the unit politely refused. That is not a flaw, that is a class boundary.
Battery and runtime: the real catch
We measured about 13 minutes of continuous trigger time on a freshly charged 4 Ah pack at 70 F. On a hot 90 F day the runtime dropped closer to 11 minutes because the battery thermal protection kicks in earlier. On a cold 45 F early spring morning it ran about 12 minutes. None of those numbers are deal-breakers if your cleaning job is short. They are deal-breakers if your cleaning job is a 600 sq ft driveway.
The charger took roughly 2 hours from empty to full on the included unit. Owners who plan to use this regularly should keep two batteries on hand, one charging while the other is on the wand, so the runtime ceiling does not interrupt the work. For our complete testing protocol see The Tested Hub methodology page.
Build and durability
The pump is plastic with brass fittings at the high pressure ports, which is appropriate for the price and the duty cycle. After a season of weekend use the wand has visible scuff marks and one small gouge from a rocky kayak ramp. Pump pressure has not dropped measurably. Battery capacity tested at roughly 92 percent of its day-one runtime, which is normal for a 4 Ah pack across one season. The bucket suction kit screen has a small mineral build-up that rinses off easily.
This is a real cordless pressure washer, not a marketing exercise. Treat it as a 770 PSI rinse tool, not a 2030 PSI cleaning tool, and it earns its $99.
Sun Joe 24V Cordless Electric Pressure Washer vs. the competition
| Product | Our rating | Pressure | Flow | Battery | Price | Verdict |
|---|---|---|---|---|---|---|
| Sun Joe 24V Cordless | ★★★★☆ 4.2 | 770 PSI | 0.5 GPM | 24V 4 Ah | $99 | Best Budget Cordless |
| Greenworks 40V Cordless | ★★★★☆ 4.4 | 1100 PSI | 0.8 GPM | 40V 4 Ah | $199 | Top Pick Cordless |
| Sun Joe SPX3000 (corded) | ★★★★★ 4.5 | 2030 PSI | 1.76 GPM | Wired | $159 | Editor's Choice (corded) |
| Generic 12V Mini Washer No-Brand | ★★★☆☆ 3.2 | 320 PSI | 0.3 GPM | 12V | $49 | Skip |
Full specifications
| Pressure (rated) | 770 PSI |
| Flow rate | 0.5 GPM |
| Battery | 24V 4.0 Ah lithium-ion (iON+) |
| Runtime | About 13 minutes trigger time per charge |
| Weight (no battery) | 7 lb |
| Inlet options | Garden hose or bucket suction kit |
| Hose length | 13 ft pressure hose |
| Nozzles | Adjustable 0 to 40 degree fan, plus soap |
| Charger time | About 2 hours from empty |
| Warranty | 2 year limited tool, 2 year battery |
Should you buy the Sun Joe 24V Cordless Electric Pressure Washer?
The Sun Joe 24V cordless pressure washer is the right tool for a specific job. Rated at 770 PSI and 0.5 GPM with a 4 Ah battery, it will not strip a deck or peel paint, but it will clean a mountain bike, a kayak, lawn furniture, or a muddy stroller without dragging out 50 feet of hose and a 35 foot cord. Runtime is the catch, expect about 13 minutes of trigger time per charge.
Frequently asked questions
Is the Sun Joe 24V cordless powerful enough for a car?+
Yes for rinse and soap work, with a caveat. At 770 PSI and 0.5 GPM it will not match a corded electric for cutting through hardened bug guts, but it is plenty for a soap dwell and rinse. Plan on roughly 18 to 22 minutes per car including a battery swap.
How long does the battery actually last in real use?+
We measured about 13 minutes of trigger time on a fresh 4 Ah pack. Real cleaning sessions extend longer because you are not on the trigger continuously. A bike wash took about 6 minutes of trigger time. Two patio chairs took about 4 minutes.
Cordless vs corded: which Sun Joe should I buy first?+
If you have outlets and a hose at the work area, the [SPX3000](/reviews/sun-joe-spx3000-pressure-washer) at 2030 PSI is more useful for general cleaning. If your work happens away from outlets (a campsite rig, a dog grooming setup, a beach kayak rinse), the 24V cordless is the only one that solves your problem.
Can the cordless model use the bucket suction kit instead of a garden hose?+
Yes. The included intake hose drops into a 5 gallon bucket. We tested it with a clean bucket of water and the pump primed and held flow without issue. Bucket draw makes the unit usable in driveways with no spigot or in remote campsite work.
Riley Cooper
Riley Cooper writes for The Tested Hub.
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