Karcher PSU 4-18 Battery Pressure Sprayer

The Karcher PSU 4-18 battery pressure sprayer is a versatile tool designed to simplify plant maintenance and protection tasks in your garden. By eliminating the need for manual pumping, this device allows for effortless liquid application with the simple touch of a button. It features an adjustable nozzle that transitions from a fine mist to a focused point jet, making it suitable for a variety of gardening needs. The unit includes a 4-litre tank with a built-in level indicator and a lid that doubles as a measuring cup, while the telescopic lance extends up to 75 cm to reach distant areas comfortably.

Advantages

This pressure sprayer offers significant convenience through its battery-powered operation, which removes the physical strain of manual pressure build-up. The ergonomic design, supported by an included shoulder strap, ensures that one hand remains free during use, while the lockable trigger allows for continuous, fatigue-free spraying. Its compact storage is facilitated by a dedicated lance clip, and the integrated measuring cup ensures precise mixing of plant care solutions every time.

Suitable for

• Applying liquid fertilizers to garden plants
• Targeted pest control and weed elimination
• Watering small seedlings and delicate plants
• General plant protection and maintenance

When it may not be suitable

This device is designed for small to medium-sized garden applications and may not be suitable for large-scale agricultural operations or commercial spraying tasks that require significantly higher tank capacities or continuous high-pressure output over extended periods.

Key specifications

• 18 V battery platform compatibility
• 4-litre tank capacity
• Maximum working pressure of 3 bar
• Maximum flow rate of 30 litres per hour
• Telescopic spray lance adjustable up to 0.75 m
• Weight without accessories of 1.8 kg

How to use

To begin, ensure you have a compatible 18 V Karcher battery installed. Fill the 4-litre tank with your desired liquid, using the integrated measuring cup in the tank cover for accurate dosing. Once the tank is secured, activate the pump using the power button. You can adjust the spray pattern by twisting the nozzle to switch between a fine mist and a point jet. Use the shoulder strap for comfortable transport and utilize the lockable trigger on the lance for continuous spraying without needing to hold the button down.

What to consider before purchase

• The battery and charger are not included and must be purchased separately if you do not already own a Karcher 18 V battery system.
• Assess the size of your garden to ensure the 4-litre capacity meets your specific coverage needs.
• Consider the weight of the unit when full to ensure it is comfortable for your intended duration of use.

Usage recommendations: Always rinse the tank and nozzle thoroughly with clean water after each use to prevent residue build-up and ensure the longevity of the pump mechanism.