AK 20 Battery and AL 101 Charger Starter Set
SKU: Stihl | LI-4520 007 5910
Key Features
- AK 20 battery: 36V, 4.0Ah, 144Wh
- AL 101 charger, compatible with AK and AP System
- Cold start feature down to -20 degrees C
- LED charge indicator, wall-mountable charger
- Regular price
- $143.00
- Sale price
- $143.00 $143.00 Ex VAT
- Regular price
-
Free Delivery Over £75 *
Worldwide Shipping from the UK
Trusted UK Arborist Retailer
30-Day Easy Returns
Product information & specifications
STIHL AK 20 Battery and AL 101 Charger Starter Set
The STIHL AK 20 Battery & AL 101 Charger Starter Set is the ideal power solution for your STIHL AK System tool. Designed for homeowners and serious garden users, this starter kit includes the high-capacity AK 20 36V lithium-ion battery and the AL 101 standard charger — giving you everything you need to get started.
It's in stock at Gustharts as an authorised STIHL dealer, with free UK delivery on this order.
The AK 20 is a 36V, 4.0Ah battery with an energy capacity of 144Wh, offering longer runtimes for demanding gardening tasks such as lawn mowing, hedge trimming and leaf clearing. An integrated LED charge indicator allows you to quickly check remaining battery capacity. The intelligent battery management system ensures consistent power output from full charge down to low levels, while the cold start feature protects battery cells by warming them in a controlled way before delivering full performance — enabling operation in temperatures down to -20°C.
The AL 101 charger is a 230V charger compatible with STIHL AK System batteries and AP System batteries. It features passive cooling and an LED status indicator that clearly shows charging progress. Designed for convenient storage and workshop use, it includes a Velcro cable strap for tidy cable management and can be wall mounted in a garage or shed.
Key Features & Benefits
- Starter set for STIHL AK System tools
- Includes AK 20 36V lithium-ion battery (4.0Ah / 144Wh)
- Includes AL 101 230V charger
- Integrated LED charge level indicator
- Cold start feature for operation down to -20°C
- Intelligent battery management for constant power output
- Passive battery cooling during charging
- Wall-mountable charger with cable storage strap
- Charger compatible with AK and AP System batteries
Technical Details
Why Choose the AK 20 Starter Set?
Buying battery and charger together as a set is usually cheaper than the two separately, and the 144Wh capacity sits at a genuine middle ground: more runtime than the entry-level AK 10 (72Wh) for longer sessions without a recharge, but lighter and less costly than the AK 30 S (180Wh) if your tool use doesn't demand the extra capacity. Match the set to how long you're actually working between charges rather than defaulting to the biggest battery available.
Also Known As
Also searched for as: STIHL AK20 starter kit, AK System battery charger set, STIHL 144Wh battery set, AL 101 charger bundle.
FAQs
How does the AK 20 compare to the AK 10 and AK 30 S?
The AK 20 (144Wh) sits between the AK 10 (72Wh) and AK 30 S (180Wh) in capacity, offering a balance of runtime and cost for most garden tools.
Can the AL 101 charger be used with other STIHL batteries?
Yes, it's compatible with both STIHL AK System and AP System batteries.
Does the battery work in cold weather?
Yes, the cold start feature warms battery cells in a controlled way, enabling operation down to -20°C.
How do I check remaining battery charge?
An integrated LED charge indicator on the battery shows remaining capacity at a glance.
Can the charger be wall mounted?
Yes, it's designed for wall mounting with a Velcro cable strap for tidy storage.
Helpful Links
If you're choosing the right setup for this product, you may also want to explore the related categories, batteries, chargers, and cordless tool ranges below.
Shop Related Categories
Complete Your Setup
Helpful Guides
Battery Specifications
| BGA 60 Run Times per Battery Charge - Minutes | 13 |
|---|---|
| BGA 57 Run Times per Battery Charge - Minutes | 25 |
| SHA 56 Run Times per Battery Charge - Minutes | 25 |
| KMA 80 R Run Times per Battery Charge - Minutes | 20 |
| HLA 56 Run Times per Battery Charge - Minutes | 100 |
| HSA 60 Run Times per Battery Charge - Minutes | 140 |
| HTA 50 Run Times per Battery Charge - Minutes | 45 |
| HSA 50 Run Times per Battery Charge - Minutes | 100 |
| FCA 80 Run Times per Battery Charge - Minutes | 25 |
| FSA 80 R Run Times per Battery Charge - Minutes | 25 |
| FSA 80 Run Times per Battery Charge - Minutes | 25 |
| FSA 60 R Run Times per Battery Charge - Minutes | 25 |
| FSA 57 Run Times per Battery Charge - Minutes | 50 |
| MSA 70 C-B Run Times per Battery Charge - Minutes | 40 |
| AL 501 Charger Minutes (80% / 100% capacity) | 35/55 |
| MSA 60 C-B Run Times per Battery Charge - Minutes | 40 |
| AL 301 Charger Minutes (80% / 100% capacity) | 30/50 |
| AL 101 Charger Minutes (80% / 100% capacity) | 135/180 |
STIHL AK 20 Battery and AL 101 Charger Starter Set
The STIHL AK 20 Battery & AL 101 Charger Starter Set is the ideal power solution for your STIHL AK System tool. Designed for homeowners and serious garden users, this starter kit includes the high-capacity AK 20 36V lithium-ion battery and the AL 101 standard charger — giving you everything you need to get started.
It's in stock at Gustharts as an authorised STIHL dealer, with free UK delivery on this order.
The AK 20 is a 36V, 4.0Ah battery with an energy capacity of 144Wh, offering longer runtimes for demanding gardening tasks such as lawn mowing, hedge trimming and leaf clearing. An integrated LED charge indicator allows you to quickly check remaining battery capacity. The intelligent battery management system ensures consistent power output from full charge down to low levels, while the cold start feature protects battery cells by warming them in a controlled way before delivering full performance — enabling operation in temperatures down to -20°C.
The AL 101 charger is a 230V charger compatible with STIHL AK System batteries and AP System batteries. It features passive cooling and an LED status indicator that clearly shows charging progress. Designed for convenient storage and workshop use, it includes a Velcro cable strap for tidy cable management and can be wall mounted in a garage or shed.
Key Features & Benefits
- Starter set for STIHL AK System tools
- Includes AK 20 36V lithium-ion battery (4.0Ah / 144Wh)
- Includes AL 101 230V charger
- Integrated LED charge level indicator
- Cold start feature for operation down to -20°C
- Intelligent battery management for constant power output
- Passive battery cooling during charging
- Wall-mountable charger with cable storage strap
- Charger compatible with AK and AP System batteries
Technical Details
Why Choose the AK 20 Starter Set?
Buying battery and charger together as a set is usually cheaper than the two separately, and the 144Wh capacity sits at a genuine middle ground: more runtime than the entry-level AK 10 (72Wh) for longer sessions without a recharge, but lighter and less costly than the AK 30 S (180Wh) if your tool use doesn't demand the extra capacity. Match the set to how long you're actually working between charges rather than defaulting to the biggest battery available.
Also Known As
Also searched for as: STIHL AK20 starter kit, AK System battery charger set, STIHL 144Wh battery set, AL 101 charger bundle.
FAQs
How does the AK 20 compare to the AK 10 and AK 30 S?
The AK 20 (144Wh) sits between the AK 10 (72Wh) and AK 30 S (180Wh) in capacity, offering a balance of runtime and cost for most garden tools.
Can the AL 101 charger be used with other STIHL batteries?
Yes, it's compatible with both STIHL AK System and AP System batteries.
Does the battery work in cold weather?
Yes, the cold start feature warms battery cells in a controlled way, enabling operation down to -20°C.
How do I check remaining battery charge?
An integrated LED charge indicator on the battery shows remaining capacity at a glance.
Can the charger be wall mounted?
Yes, it's designed for wall mounting with a Velcro cable strap for tidy storage.
Helpful Links
If you're choosing the right setup for this product, you may also want to explore the related categories, batteries, chargers, and cordless tool ranges below.
Shop Related Categories
Complete Your Setup
Helpful Guides
Battery Specifications
| BGA 60 Run Times per Battery Charge - Minutes | 13 |
|---|---|
| BGA 57 Run Times per Battery Charge - Minutes | 25 |
| SHA 56 Run Times per Battery Charge - Minutes | 25 |
| KMA 80 R Run Times per Battery Charge - Minutes | 20 |
| HLA 56 Run Times per Battery Charge - Minutes | 100 |
| HSA 60 Run Times per Battery Charge - Minutes | 140 |
| HTA 50 Run Times per Battery Charge - Minutes | 45 |
| HSA 50 Run Times per Battery Charge - Minutes | 100 |
| FCA 80 Run Times per Battery Charge - Minutes | 25 |
| FSA 80 R Run Times per Battery Charge - Minutes | 25 |
| FSA 80 Run Times per Battery Charge - Minutes | 25 |
| FSA 60 R Run Times per Battery Charge - Minutes | 25 |
| FSA 57 Run Times per Battery Charge - Minutes | 50 |
| MSA 70 C-B Run Times per Battery Charge - Minutes | 40 |
| AL 501 Charger Minutes (80% / 100% capacity) | 35/55 |
| MSA 60 C-B Run Times per Battery Charge - Minutes | 40 |
| AL 301 Charger Minutes (80% / 100% capacity) | 30/50 |
| AL 101 Charger Minutes (80% / 100% capacity) | 135/180 |
Delivery & Returns
UK Delivery
Fast, reliable delivery from our UK warehouse.
- FREE UK Standard Delivery
applies to eligible UK orders over £75 ex VAT.
Estimated delivery: 2–4 working days
- UK Standard Delivery from £3.60 + VAT
Estimated delivery: 2–4 working days
- Next Working Day Delivery – £6.00 + VAT
Order before 3:00pm (Monday–Friday) for next working day delivery
All UK orders are dispatched Monday–Friday and sent via a tracked courier service.
International Delivery
We ship worldwide from the UK.
- Europe from £10.00 - Estimated delivery: 2–7 working days
- Rest of the World from £12.00 - Estimated delivery: 2–11 working days
Shipping costs and delivery times are calculated at checkout based on destination and order contents.
Customs, Duties & Taxes
International orders may be subject to local import duties, taxes, or customs charges.
When UPS is selected at checkout, applicable duties and taxes are included in the total price. For other shipping services, duties and taxes may be charged separately on delivery and are the responsibility of the recipient.
Customs processing times may affect delivery estimates.
Returns
30-Day Return Policy
- Items can be returned within 30 days of delivery
- Products must be unused and in original condition
- Return postage costs apply unless the item is faulty or incorrect
For full details, please visit our Shipping & Returns page.
UK Delivery
Fast, reliable delivery from our UK warehouse.
- FREE UK Standard Delivery
applies to eligible UK orders over £75 ex VAT.
Estimated delivery: 2–4 working days
- UK Standard Delivery from £3.60 + VAT
Estimated delivery: 2–4 working days
- Next Working Day Delivery – £6.00 + VAT
Order before 3:00pm (Monday–Friday) for next working day delivery
All UK orders are dispatched Monday–Friday and sent via a tracked courier service.
International Delivery
We ship worldwide from the UK.
- Europe from £10.00 - Estimated delivery: 2–7 working days
- Rest of the World from £12.00 - Estimated delivery: 2–11 working days
Shipping costs and delivery times are calculated at checkout based on destination and order contents.
Customs, Duties & Taxes
International orders may be subject to local import duties, taxes, or customs charges.
When UPS is selected at checkout, applicable duties and taxes are included in the total price. For other shipping services, duties and taxes may be charged separately on delivery and are the responsibility of the recipient.
Customs processing times may affect delivery estimates.
Returns
30-Day Return Policy
- Items can be returned within 30 days of delivery
- Products must be unused and in original condition
- Return postage costs apply unless the item is faulty or incorrect
For full details, please visit our Shipping & Returns page.

