Outsunny 1800W High Pressure Washer vs Cordless Pressure Washer 21V - Portable Power Washer with 2 Batteries
Updated August 2026 — The Outsunny 1800W High Pressure Washer is the superior choice for heavy-duty tasks, while the Cordless Pressure Washer 21V is ideal for light cleaning needs.
The Outsunny 1800W High Pressure Washer is the superior choice for heavy-duty tasks, while the Cordless Pressure Washer 21V is ideal for light cleaning needs.
Why Outsunny 1800W High Pressure Washer is better
power
Outsunny has a powerful 1800W motor and 150 bar pressure
accessories
Outsunny includes a complete kit for various tasks
cleaning versatility
Outsunny is suitable for heavy-duty cleaning tasks
Why Cordless Pressure Washer 21V - Portable Power Washer with 2 Batteries is better
portability
Cordless model is lightweight and easy to transport
cordless operation
Cordless model allows cleaning without a power source
runtime
Cordless model has swappable batteries for extended use
Overall score
Specifications
| Spec | Outsunny 1800W High Pressure Washer | Cordless Pressure Washer 21V - Portable Power Washer with 2 Batteries |
|---|---|---|
| Power | 1800W | 42V |
| Max Pressure | 150 bar | Not specified |
| Flow Rate | 420 L/h | Not specified |
| Battery Type | N/A | 21V Lithium |
| Included Nozzles | Multiple | 2 Rotating |
Dimension comparison
Overview of the Products
The Outsunny 1800W High Pressure Washer is designed for heavy-duty cleaning tasks, while the Cordless Pressure Washer 21V is tailored for light cleaning needs. The price difference is significant, with the Outsunny retailing at £61.85, compared to the Cordless model’s price of £23.99. This variance reflects the capabilities of each product, with the Outsunny offering a more powerful motor and higher pressure.
The Outsunny features an 1800W motor that delivers a maximum pressure of 150 bar, making it suitable for demanding tasks. Conversely, the Cordless Pressure Washer is powered by two 21V batteries, emphasising convenience and portability for light-duty jobs.
Power Comparison
When it comes to power, the Outsunny 1800W High Pressure Washer clearly takes the lead. With its robust motor, it achieves a maximum pressure of 150 bar and a flow rate of 420 litres per hour, allowing it to tackle tougher cleaning jobs efficiently. This level of power is essential for heavy-duty applications, such as cleaning vehicles and outdoor surfaces.
In contrast, the Cordless Pressure Washer operates on two 21V batteries, making it ideal for light cleaning tasks but lacking the muscle needed for more demanding jobs. It is specifically designed for situations like rinsing dust off a car or watering plants, where less pressure is required. Thus, if your cleaning tasks are more intensive, the Outsunny is the superior choice.
Portability and Convenience
In terms of portability, the Cordless Pressure Washer shines with its lightweight design and cordless operation, allowing you to clean without being tethered to a power source. This model is compact enough to fit in your car boot, making it easy to transport for various light tasks around your home or garden.
The Outsunny, while also portable with its integrated hose reel and wheels for mobility, does require a power source. Therefore, it may not be as convenient for users needing flexibility in locations without easy access to electricity. If you prioritise convenience and light tasks, the Cordless Pressure Washer is more advantageous.
Included Accessories
The Outsunny comes with a complete pressure washer kit, including a spray gun, wand, six-metre hose, inlet adaptor, snow foam bottle, and various nozzles. This comprehensive set enables users to tackle a wide range of cleaning tasks right out of the box.
On the other hand, the Cordless Pressure Washer also includes a complete kit featuring two 21V batteries, a charger, a five-metre hose, a foam spray cannon, and two rotating nozzles. While both products offer extensive accessories, the Outsunny may provide greater versatility for heavy-duty jobs, while the Cordless kit is well-suited for lighter applications.
Cleaning Versatility
The Outsunny 1800W High Pressure Washer is designed for multi-use scenarios, effectively cleaning vehicles, outdoor furniture, and garden fences. Its adjustable spray angle from 0° to 75° allows for tailored cleaning, making it suitable for various surfaces and dirt types.
The Cordless Pressure Washer, however, is primarily intended for light cleaning, excelling in tasks like rinsing cars or watering plants. It does come with two rotating nozzles to switch between focused jets and wide sprays, but it is not suitable for more demanding surfaces such as baked-on mud or oil stains. Therefore, if versatility across various cleaning tasks is important, the Outsunny is the better option.
Runtime and Battery Life
The Cordless Pressure Washer is equipped with two 2.0Ah batteries, which can be swapped out for extended runtime. This feature allows users to continue cleaning without downtime for recharging, making it a convenient choice for light tasks.
In contrast, the Outsunny does not rely on batteries, instead connecting directly to mains power. This ensures consistent performance without the need to worry about battery life, making it ideal for prolonged usage. If you prefer uninterrupted cleaning power, the Outsunny is the way to go, while the Cordless model offers flexibility for shorter, light-duty tasks.
User Experience
User experience varies significantly between the two products. The Outsunny High Pressure Washer is designed for robust performance, making it a reliable choice for users needing to complete extensive cleaning jobs. Its features, such as the automatic pump shut-off for safety when the trigger is not engaged, enhance usability.
The Cordless Pressure Washer offers freedom of movement and ease of use for quick cleaning tasks but may not provide the same level of effectiveness for tougher jobs. Users seeking a straightforward, hassle-free experience for light cleaning will appreciate the Cordless model’s design, while those needing more power might prefer the Outsunny's extensive capabilities.
Which should you buy?
Deciding between the Outsunny 1800W High Pressure Washer and the Cordless Pressure Washer 21V ultimately depends on your cleaning needs. If you require a powerful machine that can handle heavy-duty tasks and offer a comprehensive set of accessories, the Outsunny is worth the investment at £61.85. However, if you are looking for a lightweight, portable option for light cleaning tasks and appreciate the convenience of cordless operation, the Cordless Pressure Washer at £23.99 becomes an attractive choice. Both products excel in their respective categories, making your specific requirements the key factor in making the right decision.
versusfinder.com is a participant in the Amazon Services LLC Associates Programme and the Amazon EU Associates Programme. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.

