STIHL AK BATTERY: MEDIUM AND LARGE GARDENS

STIHL AK 20 COMPACT Battery

Product code:
4520 400 6535
  • Runs the tools from the STIHL Battery AK range
  • Capacity of 144 Wh
  • Weighs just 1.2 kg
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YOUR STORE

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STIHL SHOP Levin
108 Oxford Street, Levin 5510, New Zealand
Phone: 06 367 9951
CLICK & COLLECT: 1 HOUR - FREE SERVICE
Tools assembled prior to collection (Within store opening hours, you will be contacted when your order is ready Find Out More)
HOME DELIVERY 2-5 WORKING DAYS - $8
$195.00
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Delivery, Warranty, Returns & Exchange

Delivery

Home Delivery - $8 on all online orders. Delivery timeframe is 2 to 5 working days.

Click & Collect - FREE. Includes assembly of tools prior to collection. The store will contact you when your order is ready.

Returns & Exchanges

We will happily accept returns or exchanges up to 14 days after the date of purchase,  provided the products are in their original condition and packaging. Click here to view our full Returns Policy

Warranty

All STIHL tools purchased online are covered by the same comprehensive warranty as those bought in‑store, giving you complete peace of mind no matter how you shop.

Battery-Powered Tools, Batteries and Chargers

  • 5‑year warranty for domestic use
  • 3‑year warranty for professional use

Petrol‑Powered Tools (exluding WaterBlasters and Lawnmowers)

  • 2‑year warranty for private, domestic, farming, commercial, and professional use
Double the warranty on selected petrol tools purchased online to 4 years by adding HP Ultra Oil (minimum 1L) to your purchase.

Accessories & Cutting Attachments

  • 1‑year warranty when used for domestic, farming, professional, or government applications

Click here to find out more about the STIHL Warranty, including timeframes for, Hire and Government use.

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Details

The STIHL AK 20 Compact Battery is a popular choice for homeowners wanting longer runtimes and dependable cordless power for regular garden maintenance. Delivering 144 Wh of energy in a compact, lightweight design, the AK 20 is ideal for a wide range of compatible STIHL AK System tools, including hedge trimmers, line trimmers, combi tools and pole saws. With an integrated LED charge level indicator and the ability to tackle larger jobs with fewer charging breaks, the AK 20 helps you work more efficiently around your property.

✓ Fits AK System Tools

 ✓ Interchangeable across the AK range (For maximum performance and runtime in higher-powered tools such as chainsaws, blowers and lawnmowers, STIHL recommends the AK 30 S battery.)

✓ Works with AL 101 & AL 301 Chargers

Charge time with AL 101 Charger: 180 minutes, or to charge it up to 80%, it takes 135 minutes

Charge time with AL 301 Charger: 55 minutes, or to charge it up to 80%, it takes 35 minutes

Battery life depends on the tool type. Refer to the battery run times listed on each tool or the run time chart below.

Specifications

Rated voltage (V)

36

Max. voltage (V)

40

STIHL Battery System

AK

Weight (kg)

1.2

Energy (Wh)

144

Rated Capacity (Ah)

4

Number of LED

4

Battery Cell Technology

Lithium-ion

Warranty

5 years

Features
  • Constant Power
    Constant Power
    Battery-powered tools from STIHL have constant power, meaning the performance of your battery tool will not decrease during work as the battery discharges. Intelligent electronics means your tool will work with consistently high power until there is no energy left in the battery.
  • Smart Control
    Smart Control
    Smart Control technology enables STIHL batteries, tools, and chargers to continuously communicate, optimising power delivery for maximum performance and efficiency. Advanced battery management protects against overcharging, deep discharge, and overheating, helping extend battery life while ensuring reliable operation, even during demanding tasks.
  • Smart Control
    Battery Cooling
    Advanced cooling technology helps maintain optimal battery temperature, improving performance, extending battery life, and ensuring reliable operation under demanding conditions.
FAQ'S

Q: What tools is the STIHL AK 20 battery compatible with?

A: The STIHL AK 20 battery is compatible with most tools in the STIHL AK Battery System, including chainsaws, line trimmers, hedge trimmers, lawnmowers, blowers, pole pruners, vacuums and pressure washers. Its increased capacity compared to the AK 10 makes it a popular choice for users wanting longer runtimes across a wide range of garden tools. It is not recommended for some chainsaws and lawnmowers that require higher power to perform at their best.

Q: How long does the STIHL AK 20 battery last?

A: Runtime varies depending on the tool being used and the application. The AK 20 offers approximately double the energy capacity of the AK 10, making it ideal for medium to larger residential gardening tasks where longer working times are required.

Q: How do I know when the battery needs charging?

A: The AK 20 features an integrated LED charge level indicator that allows you to quickly check the remaining battery capacity at any time.

Q: What charger do I need for the STIHL AK 20 battery?

A: The STIHL AK 20 battery is compatible with STIHL AL series chargers, including the AL 101 Standard Charger and AL 301 Fast Charger.

Q: Is the STIHL AK 20 battery lightweight?

A: Yes. Weighing approximately 1.2 kg, the AK 20 offers an excellent balance between battery capacity and weight, providing longer runtimes while remaining comfortable to use.

Q: Who is the STIHL AK 20 battery for?

A: The AK 20 is ideal for homeowners and lifestyle block users who need longer runtimes than the AK 10 provides. It is well suited to regular garden maintenance and powering higher-demand AK System tools.

Q: How long does it take to charge the AK 20 battery?

A: Charging times depend on the charger being used. With the STIHL AL 101 charger, the AK 20 reaches 80% charge in approximately 135 minutes and a full charge in around 180 minutes. Faster charging is available with STIHL fast chargers.

Q: Can I leave the AK 20 battery on the charger?

A: Once charging is complete, the charger automatically switches off.

Q: What is the Warranty period?

A: Comes with a 5-year domestic warranty and ongoing support from your local STIHL SHOP.

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