Bosch FONTUS 18V-6 P4A 18V Cordless Pressure Washer Bike Cleaner

The Bosch FONTUS 18V-6 P4A is a cordless pressure washer made for bikes and outdoor kit. It has its own water tank so you do not need a tap. That suits a car park after a ride. This version is body only with the bicycle cleaning tool. You need a battery and charger.

It is a low pressure washer. Maximum pressure is 20 bar. There are four spray patterns and two power modes called ECO and High. That makes eight settings. Flow runs from 1.2 to 2.2 litres a minute. Use gentle settings near brakes and seals. Use stronger ones on muddy tyres and frames.

The tank holds 6 litres and has a level indicator. The PU hose is 2.7m long. The hose and gun wrap onto the body for travel. The machine weighs just 4.4kg without a battery. It also cleans boots and camping gear. Garden furniture is fair game too.

It takes batteries from the 18V Power for All Alliance. That covers over 150 products across 10 brands. Bosch suggests 2.0Ah or more. A 2.0Ah pack gives about 13 minutes of running. It is handy if you already own compatible batteries.

Most pressure washers run from the mains and a tap. The FONTUS is different. It pumps from a 6 litre tank and runs off an 18V battery. Maximum pressure is just 20 bar. That is far below a patio washer. It is deliberate. A bike has bearings and seals that high pressure can harm. Flow of 1.2 to 2.2 litres a minute rinses mud off quickly. Two modes and four spray patterns let you tune the clean.

Keep the spray away from disc brakes pads and bearings when you can. Start in ECO mode on delicate parts. Never spray at people or pets. Remove the battery before filling the tank or cleaning the unit. Keep the charger and battery dry. Do not use it on electrical parts.