The STIHL RCA 20 Cordless Pressure Washer launched in late 2024 offers a convenient and efficient home cleaning solution for a wide range of outdoor tasks. Designed with portability and ease of use in mind, this compact pressure washer runs on STIHL’s reliable AK battery system, making it perfect for quick clean-ups around the home, garden, or on the go—without the need for a power outlet. Whether you’re washing down patio furniture, bicycles, or gardening tools, the RCA 20 delivers powerful performance with the freedom of cordless operation. Check out the STIHL RCA 20 here
What Makes the RCA 20 a Game-Changer?
Truly Portable Power
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Delivers up to 24 bar (350 psi) of maximum pressure—enough for everyday dirt, but gentle on surfaces
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Weighs only 1.3–1.5 kg (2.9 lb), making it ultra-light and easy to handle .
Cordless Flexibility
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Runs on STIHL’s 10.8 V AS 2 lithium-ion battery, offering up to 15 minutes of continuous spray time per battery
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Batteries charge to 80% in about 60 minutes, a huge improvement over older models like the Karcher KH5’s 290-minute charge
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Eco Mode extends runtime further by reducing power when full pressure isn't required
Versatile Water Sourcing
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Not tethered to tap: can draw from buckets, water butts, rain barrels, or the included 20 L collapsible water bag
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Uses a 5 m suction hose with built-in filter, ideal for camping or boat decks
Four-in-One Nozzle = Job Flexibility
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Includes rotary, fan-jet, narrow jet, and watering modes—rotary for tough stains, fan for quick rinsing, narrow for precision, and watering for delicate surfaces
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Handy when switching between cleaning patio tiles, car wheels, or delicate flowers.
Accessories You Need—Already Included
Comes with:
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4‑in‑1 nozzle and spray‑lance extension
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Detergent spray set
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5 m suction hose + filter
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20 L water bag
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Durable carry bag
(front‑loaded with kit or optionally available battery‑only)
Performance Review: Numbers in Action
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15-minute runtime per AS 2 battery means most small-clean jobs are done with one, and two batteries (sold in the kit) give you a full 30 minutes nice for patios, decking, bikes, even garden furniture
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Despite 22–24 bar pressure, it's still gentle enough not to damage wood or cars—Trusted Reviews notes it “can’t touch deep stains” but was great on surface dirt, moss, and grease
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Operates at 73‑84 dB(A)—almost whisper‑quiet compared to typical 100‑bar machines
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Compact build: 400 × 400 × 250 mm, folds neatly into your shed or the boot of a car
Who Is It For?
| Use Case | Why RCA 20 is Perfect |
|---|---|
| Cyclists & campers | Lightweight, portable, works with buckets or provided water bag |
| Families | Gentle enough for toys, car seats, garden furniture |
| Quick home jobs | Wash bikes, rinse decks, hose pots—no ladder or outlet needed |
| Weekend warriors | Two batteries provide enough juice to clean a car, then the patio |
What You’ll Actually Get
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Bare unit: £149—supplying you with the washer and accessories (no batteries/charger)
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Kit include 2× AS 2 + AL 1 charger: ~£189–£199, depending on vendor
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Many users appreciate the kit’s 2-year domestic warranty
Final Verdict
The STIHL RCA 20 is a refreshingly portable, well-designed, and efficient tool. Tests and real-world use show:
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22–24 bar pressure, 140–230 L/h flow, 15 minutes per battery, clever Eco mode, and complete with everything you need for quick clean-ups
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Weighs just 1.3 kg, making it a joy to carry—not a chore.
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Trusted Reviews summed it up with: “compact, brilliantly designed and extremely flexible”—but it’s not intended for deep patio jetting
In Summary
If you're after a cordless, easy-to-use, and eco-conscious pressure washer for everyday jobs—on the patio, bike, boat, or BBQ—the STIHL RCA 20 is a top-tier choice. It’s a perfect blend of portability, handy accessories, and consistent performance wrapped in a light, intuitive package. Just don’t expect it to beat a full-size jet washer when it comes to deep-cleaning driveways!
