In this guide we’ll look at the best cordless portable pressure washers.
We’ve compared power, water pressure, ease of transporting and cost
to give you our top recommendations.

What is the Best Cordless Portable Pressure Washer?

IMAGERECOMMENDED PRODUCTSPRODUCTFEATURES
  • Small and lightweight
  • Draws from any water source
  • 22 bars of pressure
  • On board water tank
  • Powerful and gentle
  • Water level indicator
  • Induction motor
  • Very quiet
  • 89 bars of pressure
  • Large onboard water tank
  • 105 minute run time
  • Lots of useful attachments
  • 22 bars of pressure
  • 18-volt lithium-ion battery
  • Crisp LCD screen

More Detailed Cordless Portable Pressure Washer Reviews

WORX Hydroshot Portable Pressure Washer

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FEATURES
  • Small and lightweight
  • Draws from any water source
  • 22 bars of pressure
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WORX Hydroshot Portable Pressure Washer Review

The Worx WG629E is one of the best cordless portable pressure washers on the market because it’s truly portable, lightweight and draws water from any source.

This nifty piece of kit is small and lightweight because it has no water tank or heavy casing. It’s easily used with one hand.

The Hydroshot sucks water from a river, bucket or even a bottle of water from a six-metre hose. It’s super handy when you’re camping or hiking away from home.

It has 22 bar pf pressure powered by a WORX 20V lithium powershare battery. WORX batteries are interchangeable so if you have other WORX 20 volt tools then you can swap the batteries or have one charging as you work.

The accessories on this lightweight pressure washer are simple but all you need for effective cleaning.

It has multiple pressure settings and spray angles on the 5-in-1 rotating head that switches from pulse to fine mist with a quick turn. There’s also a six-metre hose to draw water to the pressure washer which is plenty enough to move around a car, bike or patio furniture.

There’s a three-year warranty on this truly portable pressure washer that’s small but mighty.

Kärcher OC3 Portable Pressure Washer

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  • On board water tank
  • Powerful and gentle
  • Water level indicator
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Kärcher OC3 Portable Pressure Washer Review

Let’s welcome dependable Karcher’s OC3 portable pressure washer. It’s one of the best battery powered pressure washers around because it has great build quality, a removable water tank, and its gentle enough to clean your dog.

Karcher says you can leave the dirt where you found it with this machine and that’s true. The pressure washer is compact enough to take in your car and you don’t need a separate water tank or connector – this piece of kit is an all-in-one.

The pipe and gun store beneath the water tank for a tidy space-saving finish.

The on-board tank holds four litres of water which is plenty enough to clean the mud from a car, wash down a mountain bike, or clean wellies. The water tank has a handy level indicator – a simple but really useful touch that other companies forget about.

The OC3 works on 6 volts provided by two lithium-ion batteries. These have a level indicator too and push out 5 bar of pressure. This pressure is effective but gentle, so Rover won’t mind you pressure washing his feet and you can clean bird poo from plant foliage without destroying the leaves.

This is a great little portable pressure washer that’s perfect for cleaning jobs needing a light touch.

POWER Cordless Battery Powered Pressure Washer

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  • Induction motor
  • Very quiet
  • 89 bars of pressure
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POWER Cordless Battery Powered Pressure Washer Review

The POWER pressure washer is up there with the best cordless pressure washers because it uses an induction motor, is whisper-quiet, and has 1300 PSI (which equates to around 89 bar of pressure).

Let’s talk about that induction motor.

POWER says it’s the latest technology and creates less heat and more power from a lesser current than brushed motor pressure washers.

It knocks out around 89 bar of pressure which is pretty high for a cordless pressure washer working on a lithium-ion battery.

Run time is around 35 minutes on a two-hour charge but with that kind of bar pressure you can get a job done in super-fast time. There are two accessory lances that alter the pressure and spray patterns to help speed you up.

This portable, lightweight machine has a six-metre hose which is long enough to reach around your car and patio furniture no problem.

Also worth considering is the whisper-quiet motor which won’t disturb your neighbours. This is a big plus if you live in an urban area.

Bosch Fontus 06008B6070 Cordless Pressure Washer

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  • Large onboard water tank
  • 105 minute run time
  • Lots of useful attachments
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Bosch Fontus 06008B6070 Cordless Pressure Washer Review

The Bosch Fontus is one of the best cordless pressure washers around because it gives you total freedom to move about, has an onboard 15-litre water tank, and an hour’s run time.

Fontus was the Roman god of wells and springs and I think he’d be impressed with this machine.

It has an18-volt rechargeable lithium battery that can be swapped with other 18 volt Bosch batteries. The battery lasts over 105 minutes on full power and then takes several hours to recharge.

Reviewers say that’s around four tanks of water and enough to clean a whole car plus several mountain bikes and more.

The Fontus has a maximum 15 bar of pressure which isn’t as much as corded electric pressure washers, but it’s still much more powerful than a garden hose and able to shift stubborn dirt.

The included attachments make cleaning jobs simpler. You get a pencil jet for stubborn dirt, a 50-degree fan jet for rinsing, a 15-degree fan jet for small spots, and a shower jet to gently hose it all down. A Smartbrush comes as standard that’s perfect for glass.

All the accessories plus water tank are stored onboard which makes the Fontus a little on the heavy side, but there’s no need to carry a separate water source or suction pipe. Plus it’s pretty manoeuvrable, a bit like a wheeled cabin bag.

The Bosch Fontus is the best battery powered pressure washer around and the perfect all-in-one solution if you have no outside tap or power point.

Kärcher KHB 5 Multi Jet Washer

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  • 22 bars of pressure
  • 18-volt lithium-ion battery
  • Crisp LCD screen
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Kärcher KHB 5 Multi Jet Washer Review

Karcher is one of the most reliable pressure washer brands and the KHB 5 Multi Jet Washer is amongst their best cordless pressure washers because it’s very compact, has top-quality attachments, and real-time battery management.

Let’s start with the battery. It’s an 18-volt lithium-ion with 10 mins of running time from several hours charge. That doesn’t sound a lot, but when you’ve small jobs like blasting muddy boots, a dirty bike, or dusty patio furniture then it’s enough, especially with 22 bar of pressure which is pretty good for a handheld pressure washer.

The LCD screen shows you how much battery is left in run time rather than ‘one of three blobs’ – for example ‘10 mins’. You don’t get more accurate than that!

It includes a multi-jet and dirt blaster lance with five different spray modes that clip onto the compact gun handle. This is really handy as it allows you to swap between a ‘gentle glass’ clean to a ‘tough mud’ jet stream with a simple twist of the tool.

The KHB is simple to set up. You just clip on the hose (you’ll need to buy this separately) and put the other end in a water source.

This is a long-lasting, manoeuvrable handheld pressure washer you can use without an outside tap or a power point. Just chuck it in the car boot and head off to muddy fields with no worries about getting the car valeted.

Portable Pressure Washer Buyer’s Guide

Ease of Use

The great thing about portable cordless pressure washers is that they are easy to use. There are no cables to worry about, or that nagging feeling that mixing water with electricity isn’t safe.

It’s their size that makes them simple to use. Standard mains power pressure washers are often heavy and cumbersome, but little handhelds like the WORX Hydroshot or the Karcher KHB are lightweight and simple to whip out.

Think about your needs before buying. If you need to clean the car but have no outside plug or tap then the Bosch Fontus is for you. If you want to hose down your mountain bike or dog after a day of fun then consider the Karcher OC or WORX models.

Remember, if it isn’t quick and simple you won’t use it. Ease-of-use is really important.

When you’re looking to buy the best cordless portable pressure washer look for a simple gun and various attachments so you can clean different things easily. A fine mist, pulsating jet and pencil jet are really helpful.

Power

Power is something portable pressure washers struggle with. There’s no way they can complete with petrol or mains power, but they can push out a fair amount of strength.

A re-chargeable lithium battery will last for years if you look after it and they have much more power than they did a few years ago.

Consider interchangeable batteries too. WORX works on a range of batteries you can use in your drill and your pressure washer. That’s a handy feature because often battery life is short.

That said, the Lord Bosch Fontus Cordless Outside Cleaner (his full title!) runs for an hour on an 18 volt battery with 15 bar of pressure. It’s the longest running battery powered pressure washer I’ve found.

Pressure

Too little pressure and the job takes hours, too much pressure and you can damage paintwork and pointing. Pressure is all-important when you’re choosing the best portable pressure washer.

By their nature, cordless pressure washers have lower bar pressure than electric and petrol ones. A battery just can’t compete with mains power, but ‘low’ bar pressure isn’t useless.

Consider the WORX model for example. It has a maximum of 22 bar which WORX says is equivalent to 10 times that of garden hose.

The lower bar pressure you get from cordless portable pressure washers is best for lighter jobs like washing cars, glass, bikes and pets. Save high-pressure electric models for patios and concrete.

It’s worth realising that low pressure just means it takes longer to get the job done, not that it can’t do the job.

Ease of transporting

Dragging a pressure washer around is a pain. When you’re in the market for cordless pressure washers the best ones are light and compact with onboard storage.

Examples include the Bosch Fontus which is bulkier than some but stores all its necessaries, including the water, onboard. The Karcher OC3 neatly stores the pipe under the water tank so its pretty compact.

Smaller handheld cordless pressure washers can’t do this, so you need to factor in a water source and how to transport the hosepipe and accessories.

It’s not a big deal but if you’re pushed for space have a think about it. You can buy a jerrycan for a few pounds and a clip box can keep the accessories from rolling around in the car boot.

What It’ll Be Used For

This is an important question when it comes to portable pressure washers – what will it be used for?

There’s no point spending big money on a pricey machine with bells and whistles if you just want to hose off your dog so he doesn’t heat up and stink the car out, but if you want to wash your car on the street then you’ll need something bigger with more oomph.

Once you’ve figured out its purpose think about the number of times you’ll use a portable pressure washer. Bear in mind it’ll be more than you think because they’re so handy without mains cables you’ll be whipping it out every time a bird poos on the fence.

Once a month usage means you can go with a cheaper option but regular use, say every week, really needs a bit of investment in quality.

Overall, choose the best cordless portable pressure washer you can afford and follow the care instructions because these will extend its life, especially the bits about charging – overheating a battery does it no favours.

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