Cordless pressure spraying with adjustable mist and jet control for accurate liquid application.
The Karcher PSU 4-18 Battery Power Pressure Sprayer makes plant care, feeding and protection significantly easier by eliminating the need for manual pumping. Also referred to as the Karcher PSU4-18 Battery Pressure Sprayer and in variant listings as the Karcher PSU 4 18 Battery Power Garden Sprayer, this cordless pressure sprayer provides effortless application for plant treatment throughout the garden.
Whether fertilising, eliminating pests, applying pesticides, tackling weeds or watering delicate seedlings – the PSU 4-18 is ideal for targeted outdoor fluid application. The adjustable nozzle allows seamless switching from fine mist to directed point jet, while the pump activates instantly at the touch of a button – without physical pumping effort. The trigger on the lance can be used momentarily or locked for continuous spraying, and the 4-litre tank includes a filling level indicator for dosage control.
The telescopic spray lance can be extended up to 75cm to improve ergonomic reach in harder-to-access plant areas, while the tank lid doubles as a measuring cup for accurate chemical or fertiliser preparation. The Karcher PSU4 18 Battery Power Pressure Sprayer is also easy to store, with lance parking into the clip on the battery insert for compact storage when not in use.
Product Key Features
- Cordless pump activation – no manual pumping required, simply activate the pump at the touch of a button
- Adjustable spray format – switch between fine mist and direct point jet for varied garden treatment needs
- Continuous spray locking – trigger can be held or locked for uninterrupted spraying sessions
- 4-litre tank capacity – includes a visible fill level indicator for precise liquid monitoring
- Telescopic spray lance (450mm to 750mm) – extends reach comfortably into harder to access plant zones
- Kärcher Battery Power 18V platform compatible – works with Kärcher 18V batteries already owned
Accessories Included
- Measuring Cup (integrated in tank lid) – convenient for accurate dosing of pesticides and fertilisers
- Shoulder Strap – improves comfort and weight support during longer spraying periods
- Telescopic Spray Lance (450mm – 750mm) – enables ergonomic extended reach and precision application
- No battery or charger supplied – this is a machine-only package, a battery and charger must be purchased for use or use an existing battery and charger from a compatible Karcher 18V Battery Power range product if already owned
| Pump Specifications | |
| Spray Pressure | 3 Bar |
| Spray Rate | 30 Litres / Hour max. |
| Capacities | |
| Solution Tank Capacity | 4 Litre |
| Power Specifications | |
| Battery Voltage | 18 V |
| Battery Capacity | 2.5 Ah / 5.0 Ah |
| Battery Run Time | max. 400 (2.5 Ah) / max. 800 (5.0 Ah) |
| Powered By | Karcher Battery Power 18V |
PLEASE NOTE: this is a machine-only package, a battery and charger must be purchased for use or you can use an existing battery and charger from a compatible Karcher 18V Battery Power range product if already owned
- Stock status: Available for Pre-Order
- SKU: 002-040976
- Weight: 2.80kg
- Dimensions: 385.00mm x 200.00mm x 334.00mm