Description
Stihl KOA 20 Cordless Compressor SET – Portable Battery Air Compressor for Home, Car and Workshop
The Stihl KOA 20 cordless compressor is a compact, battery-powered air compressor designed for fast, convenient inflation and deflation jobs around the home, garage and workshop. Supplied here as a complete KOA 20 cordless compressor SET with AS 2 battery and AL 1 charger, it is ideal for inflating car and bike tyres, sports balls, air beds and pool inflatables without the noise, bulk or hassle of a mains-powered unit.
Available from Masseys in Swadlincote, Derbyshire, the KOA 20 is part of the popular Stihl AS cordless domestic range, so you can share the same battery with other compact Stihl tools such as hedge trimmers, pruners and pressure washers. It is an excellent addition to any Stihl cordless garden machinery range at Masseys for homeowners who want portable, reliable battery power.
Key benefits of the Stihl KOA 20 cordless compressor
- Multi-function 2-in-1 compressor: High-pressure pump for tyres and sports equipment, plus high-volume mode for quickly inflating or deflating larger inflatables.
- Maximum pressure of 10.3 bar / 150 psi: Plenty of pressure for car, van, ride-on mower and bike tyres as well as balls and other equipment.
- High volume air flow up to 360 l/min: Ideal for fast inflation and deflation of air beds, pool inflatables and similar items.
- Powered by the Stihl AS 2 battery: Uses the compact 10.8 V lithium-ion Stihl AS 2 battery for the AS System for cordless convenience.
- Lightweight and portable: Device weight is approx. 1.5 kg (without battery), with integrated carry handle and compact footprint.
- Digital display and simple controls: Ergonomically arranged display with target pressure setting, mode selection and integrated LED light for low-light conditions.
- Automatic shut-off: KOA 20 stops automatically when the set pressure is reached, helping to protect tyres and avoid over-inflation.
- Integrated storage for accessories: Attachments and nozzles can be stored on the tool, so everything is together when you need it.
- Quiet, low-vibration operation: Rubber feet help reduce vibration and noise, making it suitable for residential use.
The KOA 20 cordless compressor is ideal for anyone who wants a portable Stihl battery air compressor for everyday inflation tasks without dragging out a large workshop compressor.
What’s included in the Stihl KOA 20 Cordless Compressor SET?
At Masseys this listing is for the KOA 20 cordless compressor SET, which normally includes:
- Stihl KOA 20 cordless compressor unit
- 1 × AS 2 lithium-ion battery (Stihl AS System)
- 1 × AL 1 battery charger
- High-pressure hose with brass connector
- Selection of inflation nozzles and adapters (e.g. ball needle, valve adapters, inflator tips)
- Instruction manual and safety information
This set is a great choice if you are new to the Stihl AS cordless range for domestic users and want everything you need in one box. If you already own suitable AS 2 batteries and an AL 1 charger, our team can advise on tool-only options within the wider Stihl range.
Where the Stihl KOA 20 cordless compressor works best
The Stihl KOA 20 cordless compressor is designed for a wide variety of home, leisure and light workshop jobs, including:
- Tyre inflation: Car, van, motorbike, bicycle, trailer and ride-on mower tyres.
- Leisure inflatables: Air beds, camping mattresses, pool inflatables and beach toys.
- Sports equipment: Footballs, rugby balls, basketballs and other sports balls using the supplied adapters.
- Quick inflation/deflation around the home: Seasonal decorations, small inflatables and similar items.
It is not designed to power high-demand compressed air tools such as impact wrenches or spray guns, but it excels as a compact, cordless compressor for everyday inflation and deflation tasks at home, on the driveway or at the campsite.
Part of the Stihl AS System – build a compact cordless toolkit
The KOA 20 runs on the 10.8 V AS 2 battery, making it part of the wider Stihl AS System. This means you can share batteries with other compact Stihl tools available in our
Stihl cordless garden machinery range at Masseys.
Popular AS System companions for the KOA 20 include:
- Stihl HSA 26 cordless garden shears for shrubs and grass – for precision shrub and lawn-edge trimming.
- Stihl AS 2 battery tools within the AS cordless domestic range – build a matching kit of small cordless tools.
- Stihl RCA 20 cordless pressure washer in the AS System – portable cleaning for cars, bikes and garden furniture.
- Stihl SEA 20 cordless handheld vacuum – for quick clean-ups in vehicles, workshops and around the home.
For spares or extra power, you can also purchase the
Stihl AS 2 battery for the AS System
and the
Stihl AL 1 charger for AS batteries
directly from Masseys.
Technical overview – Stihl KOA 20 cordless compressor
- Model: Stihl KOA 20 cordless compressor (AS System)
- Power source: 10.8 V Stihl AS 2 lithium-ion battery
- Maximum pressure (high-pressure pump): 10.3 bar / 150 psi
- Max air flow (high-volume mode): up to approx. 360 l/min
- Device weight: approx. 1.5 kg (without battery)
- Noise levels (high-pressure mode): sound pressure level around 77 dB(A), sound power level around 85 dB(A)
- Battery system: Stihl AS System (AS 2 recommended)
- Approximate dimensions: length about 282 mm, width about 105 mm (excluding hose and accessories)
- Typical runtime: up to around 30 minutes per charge depending on pressure setting and application
Figures are based on manufacturer information and are intended as a guide. Actual performance and runtime will vary with the type of job, pressure chosen, temperature and the condition of your Stihl AS 2 battery.
Using the Stihl KOA 20 safely and effectively
The Stihl KOA 20 cordless compressor is straightforward to use, but as with all compressed air equipment it should be operated carefully:
- Always check the recommended pressure for your tyres or inflatables and set the KOA 20 accordingly on the digital display.
- Allow the compressor to cool if you have been inflating multiple large items consecutively.
- Inspect hoses and connections regularly and replace any damaged components before use.
- Keep children and pets away while inflating or deflating items.
- Do not attempt to use the KOA 20 with high-demand pneumatic tools that exceed its design limits.
If you are unsure whether the KOA 20 is suitable for a particular task, our garden machinery team at Masseys can advise based on real-world experience.
Why buy your Stihl KOA 20 cordless compressor from Masseys?
Masseys is a long-established, family-run business based in Swadlincote, Derbyshire. We have been supplying tools and garden machinery since 1947 and are an authorised Stihl dealer with one of the largest Stihl displays in the region. When you purchase your Stihl KOA 20 cordless compressor SET from us, you benefit from:
- Genuine Stihl products and advice: As an authorised dealer we supply only genuine Stihl equipment, supported by manufacturer-backed warranties and product knowledge built up over many years.
- Experienced, trained staff: Our team work with Stihl cordless tools daily and can recommend the right battery, charger and companion tools in the AS System for your needs.
- On-site workshop and aftersales support: Our
garden machinery servicing and repairs department in Swadlincote
can look after your Stihl tools over the long term. - Local delivery and in-store collection: Buy online for delivery across much of Derbyshire, Leicestershire and surrounding areas, or visit our Woodville store to see the KOA 20 alongside other Stihl cordless machinery.
- Practical, honest guidance: We regularly use Stihl cordless equipment ourselves and can provide realistic advice on runtimes, applications and how the KOA 20 fits into a complete cordless tool kit.
When you buy from Masseys you are not just buying a Stihl KOA 20 cordless compressor in a box – you are backed by a knowledgeable local business with workshop facilities, spare parts and long-term support.
Independent technical information
For additional technical data and official documentation on the KOA 20 and the AS battery system, you can also visit the
official Stihl KOA 20 cordless compressor product page.
Frequently asked questions about the Stihl KOA 20 cordless compressor
Is the Stihl KOA 20 suitable for car and bike tyres?
Yes. With a maximum pressure of up to 10.3 bar / 150 psi, the Stihl KOA 20 cordless compressor is well suited to inflating car, van, bicycle and motorcycle tyres. Simply set the target pressure on the digital display and the unit will automatically stop once that pressure is reached.
How long will the AS 2 battery run the KOA 20?
Runtime depends on what you are inflating and at what pressure, but as a guide the AS 2 battery is designed to provide up to around 30 minutes of typical use on a full charge. For larger jobs or frequent use, many customers choose to keep a second
Stihl AS 2 battery for the AS System charged and ready.
Can I use the KOA 20 cordless compressor with air tools?
The KOA 20 is designed primarily as a portable inflation and deflation tool, not as a continuous air supply for high-consumption pneumatic tools. Light-blow cleaning tasks and basic inflation jobs are fine, but for dedicated air tools you would usually need a larger workshop compressor with a receiver tank and higher sustained air delivery.
What other Stihl tools share the same AS 2 battery?
The AS 2 battery is used across several compact tools in the
Stihl AS cordless domestic range, including the HSA 26 shrub shears, GTA 26 pruner, HSA 30 hedge trimmer, RCA 20 cordless pressure washer and SEA 20 handheld vacuum. This lets you build a flexible cordless toolkit using a common battery and charger.
Do you provide servicing and support for Stihl cordless tools?
Yes. Our in-house workshop offers
lawn mower and garden machinery servicing and repairs in Swadlincote, Burton and Ashby.
Although the KOA 20 is largely maintenance-free, we can support you with general checks, replacement accessories and wider Stihl cordless tool servicing as needed.



