Kärcher battery-powered sprayer with yellow handle, grey base, and long nozzle attachment.

Man using Kärcher garden sprayer in sunny garden, surrounded by trees and shrubs, with a wooden shed in the background.

Person using Kärcher high-pressure cleaner on lawn in a garden with trees, red flowers, and a house in the background.

Man watering red roses in a garden using a Kärcher pressure sprayer, with sunlight filtering through trees in the background.

Man using Kärcher sprayer to water garden plants, standing on grass with trees and a house in the background.

Man using Kärcher sprayer in a garden, watering plants in a raised brick planter surrounded by greenery.

Hand inserting battery into Kärcher pressure washer with yellow handle and digital display.

Hand holding a Kärcher high-pressure cleaner nozzle with a brass connector against a plain white background.

Hands pouring liquid from a white bottle with a green cap into a measuring cup.

Close-up of a Kärcher submersible pump with a yellow handle, black cable, and visible measurement markings on the grey body.

Battery pressure sprayer

PSU 4-18 (Machine Only)

Part number: 1.445-300.0

18 V battery platform

Technical data

Battery powered device	1
Battery platform	18 V battery platform
Operating pressure (bar)	3
Flow Rate (l/h)	max. 30
Water tank volume (l)	4
Battery type	Lithium-ion replacement battery
Voltage (V)	18
Run time per battery charge (min)	max. 400 max. 800
Colour	yellow
Weight without accessories (kg)	1.8
Weight incl. packaging (kg)	2.8
Dimensions (L × W × H) (mm)	750 x 182 x 365

Scope of supply

Versions
Shoulder belt
Measuring cup

Equipment

Telescopic spray lance
Lockable operating trigger
Lance fixation clip
Filling level display

Product information and benefits

The battery powered pressure sprayer PSU 4-18 assists you in the garden with the spreading of liquids for the maintenance and protection of your plants. Whether it is fertilising, eliminating pests, tackling weeds or watering small seedlings – the PSU 4-18 is perfect for all applications mentioned with its spray mist/spray jet. There is no longer a need for exhausting manual pumping for the pressure build-up. With a simple touch of the button you activate the pump of the pressure sprayer. The spray jet can be switched on as needed using the trigger on the lance, put into continuous operation or can be continuously adjusted directly at the nozzle from a fine mist to the point jet. The shoulder strap facilitates carrying the battery powered pressure sprayer. The 4-litre tank has an integrated filling level indicator and the tank cover also serves as a measuring cup for measuring fertilisers or pesticides. The lance can be extended to 75 cm for ergonomic work, also in more hard to reach areas. In order to store the 18 V plant spray in a space-saving manner, the lance can be removed and secured at the lance clip on the battery insert.

Telescopic spray lance

Lockable operating trigger

18V Kärcher Battery Power Battery Platform

Real Time Technology with LCD battery display: Remaining running time, remaining charging time and battery capacity. Long-lasting and powerful thanks to lithium-ion cells. The exchangeable battery can be used in all other 18V Kärcher Battery Power platform devices.

PSU 4-18 (Machine Only)

Technical data

Product information and benefits

Telescopic spray lance

Lockable operating trigger

18V Kärcher Battery Power Battery Platform

Product safety and documents

Applications and videos

Accessories and detergents

Ratings

About Kärcher

Social Media

Onlineshop

Payment

Legal

Contact