Kärcher KHB 4-18 Battery Set Cordless Hand Washer – 18 V, 21 bar, 170 l/h, battery and charger included

Mobile cleaning without limits – the compact Kärcher KHB 4-18 Battery Set cordless high-pressure cleaner is the perfect solution for quick and efficient dirt removal wherever you need it. Thanks to the lightweight design and the built-in 18 V battery, cleaning is done without cables, without time-consuming preparations and with maximum freedom of movement.

Efficiency and versatility
With a medium pressure of 21 bar and a flow rate of up to 170 l/h, you will quickly clean garden furniture, bicycles, toys, trash cans and other equipment around the house. The built-in flat jet nozzle allows for gentle cleaning, while additional equipment extends the utility to watering, cleaning stairs or hard-to-reach places.

Smart battery technology
The included 18 V lithium-ion battery with real-time LCD display shows remaining runtime and charge status. The battery is compatible with all devices from the Kärcher 18 V battery platform.

Main advantages:

• Battery operation for complete mobility.
• Medium pressure of 21 bars for effective cleaning without damaging surfaces.
• Compact, lightweight and convenient design (weighs only 1.3 kg without accessories).
• 18 V / 2.5 Ah battery and standard charger included.
• The LCD display on the battery shows the status and remaining operating time.
• Quick nozzle changes with the Quick Connect system.
• Water suction option for use without a water connection.

Technical specifications:

• Power supply: battery-powered (18 V lithium-ion battery)
• Battery capacity: 2.5 Ah
• Operating time: up to 14 min
• Charging time: 300 min
• Pressure: 21 bar (medium pressure)
• Flow rate: up to 170 l/h
• Water inlet temperature: up to 40 °C
• Weight without accessories: 1.3 kg
• Dimensions (L x W x H): 292 x 89 x 228 mm

Scope of delivery:

• Kärcher KHB 4-18 Battery Set cleaner
• 18V / 2.5Ah battery
• Standard charger 18 V
• Long spray tube
• Flat jet nozzle
• Garden hose connector adapter A3/4''
• Integrated water filter

Areas of application:

• Garden furniture, troughs and toys
• Children's toys and bicycles
• Garden tools and equipment
• Fences and smaller outdoor areas
• Trash cans and patios

Same summary

The Karcher KHB 4-18 Battery Set cordless hand-held cleaner is a practical choice for users looking for an easy and quick solution for cleaning garden equipment, bicycles or cars on the go. It is particularly suitable for those who do not always have access to a power outlet and want mobility and ease of use without the hassle of cables. The included battery allows for immediate use, which is particularly convenient for new users of cordless tools. Due to the basic motor and lower voltage, the product is slightly less suitable for those who expect high power or frequent longer cleaning operations, but it offers a good balance for occasional use around the house or on the go.

Recommendation source: Enaa guides and team experiences.

User view

Typical users of this cleaner are individuals who appreciate a quick bike cleaning after a trip, watering garden furniture, washing a car or cleaning small sports equipment immediately before or after use. The advantage of the product is particularly its portability and the fact that you can clean it even where there is no electrical outlet nearby. This is why Karcher offers a solution for everyone who wants to have greater freedom of movement when maintaining the surroundings of their home or in the field.

Many users choose Kärcher products, as the company's reputation is based on reliability, broad battery compatibility, and ease of use within the same tool system.

Why buy at Enaa

When you buy from Enaa, you are guaranteed a clear presentation of all key filters, such as the included battery and voltage, making it easy to compare models according to your needs. Our offer also includes products from proven brands and professional support to help you choose the most suitable purifier for everyday use.

Answers to frequently asked questions

For which tasks is this model most recommended?

The model is best suited for quick cleaning of smaller outdoor areas, garden equipment, bicycles or cars, where you want a simple and portable solution without cables.

Can it clean even stubborn dirt on larger surfaces?

The cleaner is designed for on-the-go and easier cleaning; for very stubborn dirt or regular cleaning of larger areas, we recommend more powerful models with higher voltage or a wired version.

How long can I clean with one full battery cycle?

The operating time depends on the intensity of use, but usually allows for several short cleaning sessions before a refill is required.

Is this cleaner also suitable for users who already have Kärcher cordless tools?

Yes, if you already use a Kärcher battery system, you can benefit from compatibility with other devices in the same system, which increases the usefulness of your existing batteries.

What do I get with a model that has a battery included in the set?

With the included battery kit, you can use the cleaner immediately after purchase, without additional costs or searching for the right components, which is especially convenient for first-time users.

Description updated: April 2026