STIHL AK battery machines and cordless garden tools

STIHL AK Battery System

Cordless garden machinery for larger gardens

Powerful, quiet and easy-to-use STIHL cordless tools powered by interchangeable AK batteries — ideal for mowing, trimming, cutting and clearing around the garden.

One battery system
Cordless garden tools
Authorised STIHL Dealer
Expert product advice

STIHL AK Battery Guide

Choosing the right STIHL AK battery

Not sure which AK battery you need? These quick answers help explain compatibility, runtime and the difference between popular AK battery options.

What is the difference between the STIHL AK 30 and AK 30 S battery?

The STIHL AK 30 S is the newer high-capacity AK System battery. It is a 36 V, 5.0 Ah lithium-ion battery with 180 Wh of energy and is designed to power tools within the STIHL AK System.

The AK 30 S also includes a cold-start feature, helping protect the cells and allowing controlled power delivery in colder conditions down to -20°C. It is a strong choice for higher-demand AK tools and longer garden jobs.

What is compatible with the STIHL AK battery?

STIHL AK batteries are compatible with power tools in the STIHL cordless AK System, including selected chainsaws, hedge trimmers, long-reach hedge trimmers, grass trimmers, blowers, pole pruners and lawn mowers.

AK 10, AK 20 and AK 30 batteries are interchangeable across AK machines, although STIHL recommends higher-capacity batteries for certain tools to achieve full performance.

How long does a STIHL AK battery last?

Runtime depends on the battery size, the tool being used and the type of work. A higher-capacity AK battery such as the AK 30 S will generally run longer than an AK 20 or AK 10 in the same tool.

For battery lifespan, STIHL lithium-ion batteries are designed for long service life when charged and stored correctly. STIHL recommends careful storage and notes that lithium-ion batteries have very low self-discharge.

What is the difference between the STIHL AK 20 battery and the AK 30 battery?

The STIHL AK 20 is a 36 V, 4.0 Ah battery with 144 Wh of energy. It is a strong all-round option for many AK System tools and regular garden jobs.

The AK 30 S offers more capacity at 36 V, 5.0 Ah and 180 Wh. This gives more stored energy for longer runtime and better support for higher-demand AK machines.

Compare STIHL Battery Systems

AS, AK or AP — which STIHL battery system is right for you?

STIHL battery systems are designed for different users and workloads. Compare the ranges below to choose the best route.

AS System

Small garden jobs

Compact cordless tools for quick trimming, pruning and lightweight maintenance.

  • Best for smaller gardens
  • Lightweight and easy to handle
  • Ideal for quick maintenance tasks
Shop AS System
AK System

Larger gardens

Versatile cordless tools for homeowners who need more runtime and performance.

  • Best for regular garden work
  • Good balance of power and weight
  • Tools, batteries and chargers work together
Shop AK System
AP System

Professional use

High-performance cordless tools for professional landscaping, arborist and commercial work.

  • Best for professionals
  • Long runtime and high output
  • Built for heavier workloads
Shop AP System

Need help choosing the right AK setup?

For most larger domestic gardens, the AK System is the ideal balance of performance, runtime and ease of use. Pair your chosen AK tool with the right battery and charger for the jobs you do most.

AK 10: lighter tools and shorter jobs
AK 20: strong all-round garden battery
AK 30 S: longer runtime and higher-demand tools

STIHL AK FAQs

STIHL AK battery questions answered

Can I use the same AK battery in different STIHL AK tools?

Yes, STIHL AK batteries are designed for AK System tools. AK 10, AK 20 and AK 30 batteries can be used across AK machines, although some tools perform best with a higher-capacity battery.

Which STIHL AK battery should I buy first?

For many homeowners, the AK 20 is a strong all-round choice. If you need longer runtime or are using higher-demand tools such as mowers or selected chainsaws, the AK 30 S is usually the better option.

Do STIHL AK tools come with a battery and charger?

Some AK tools are sold as tool-only versions, while others may be available as sets. Always check the product title and description to confirm whether a battery and charger are included.

Are STIHL AK tools suitable for professional use?

The AK System is mainly designed for domestic and larger garden use. For regular professional work, the STIHL AP System is usually the better choice.

STIHL AK Buying Guide

STIHL AK Battery Machines, Tools & Batteries UK

Shop STIHL AK battery machines at Gustharts, including cordless chainsaws, hedge trimmers, grass trimmers, blowers, lawn mowers, batteries and chargers for larger domestic gardens.

The STIHL AK System is designed for homeowners who want cordless garden machinery with strong performance, simple battery compatibility and low noise compared with petrol-powered tools.

Browse STIHL AK battery tools, choose compatible AK batteries, or compare the AK System with STIHL AS tools and STIHL AP professional battery machines.