Free Delivery
Free Delivery
Free Delivery
Free Delivery
Free Delivery
AK 20 Battery
SKU: Stihl | LI-4520 400 6535
- Regular price
- £91.50 Ex VAT
- £109.80 Inc VAT
- RRP: £99.17 Ex VAT
- Sale price
- £91.50 £91.50 Ex VAT
- Regular price
-
- £109.80 £109.80 Inc VAT
- Was £99.17 Ex VAT
Free Standard UK Delivery Over £75 +VAT
Easy Returns
Couldn't load pickup availability
Product information & specifications
Take on your garden tasks with freedom and flexibility with the STIHL AK 20 Battery. This compact and lightweight lithium-ion battery delivers a robust 36 volts of power and a capacity of 144 Wh, ideal for tackling a variety of jobs around your property.
Effortless Performance, Extended Runtime:
- Lightweight Design: The ergonomic design minimizes weight for comfortable extended use, reducing fatigue during those longer gardening sessions.
- Long-lasting Power: The 144 Wh capacity ensures you can power through trimming, pruning, and blowing tasks without frequent recharging. (Note: Exact runtime will vary depending on the specific STIHL AK System tool you're using.)
- Reliable 36V System: Experience consistent power delivery for efficient results, even on demanding jobs.
Stay in Charge, Stay Informed:
- Intuitive LED Display: A handy four-light LED fuel gauge keeps you informed of the remaining battery life, so you can plan your workload accordingly.
- Fast Charging: Pair the STIHL AK 20 with any compatible STIHL AL charger (AL 101, AL 301, or AL 500) for quick and efficient recharges to get you back to work faster. (Charger sold separately)
Built for the STIHL AK System:
- Seamless Compatibility: The STIHL AK 20 seamlessly integrates with all STIHL AK System cordless tools, offering a versatile solution for your lawn and garden needs.
- Durable Construction: STIHL is renowned for quality, and the AK 20 is built to withstand the demands of regular use.
Lightweight, powerful, and easy to use, the STIHL AK 20 Battery is the perfect partner for homeowners and professionals seeking a reliable and efficient cordless power source. Experience the freedom of cordless gardening with STIHL.
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 |
Take on your garden tasks with freedom and flexibility with the STIHL AK 20 Battery. This compact and lightweight lithium-ion battery delivers a robust 36 volts of power and a capacity of 144 Wh, ideal for tackling a variety of jobs around your property.
Effortless Performance, Extended Runtime:
- Lightweight Design: The ergonomic design minimizes weight for comfortable extended use, reducing fatigue during those longer gardening sessions.
- Long-lasting Power: The 144 Wh capacity ensures you can power through trimming, pruning, and blowing tasks without frequent recharging. (Note: Exact runtime will vary depending on the specific STIHL AK System tool you're using.)
- Reliable 36V System: Experience consistent power delivery for efficient results, even on demanding jobs.
Stay in Charge, Stay Informed:
- Intuitive LED Display: A handy four-light LED fuel gauge keeps you informed of the remaining battery life, so you can plan your workload accordingly.
- Fast Charging: Pair the STIHL AK 20 with any compatible STIHL AL charger (AL 101, AL 301, or AL 500) for quick and efficient recharges to get you back to work faster. (Charger sold separately)
Built for the STIHL AK System:
- Seamless Compatibility: The STIHL AK 20 seamlessly integrates with all STIHL AK System cordless tools, offering a versatile solution for your lawn and garden needs.
- Durable Construction: STIHL is renowned for quality, and the AK 20 is built to withstand the demands of regular use.
Lightweight, powerful, and easy to use, the STIHL AK 20 Battery is the perfect partner for homeowners and professionals seeking a reliable and efficient cordless power source. Experience the freedom of cordless gardening with STIHL.
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
Christmas Returns (Extended)
To give you extra peace of mind over Christmas:
- Orders placed between 10 October and 24 December 2025 can be returned up to 26 January 2026 (excluding Sale items)
- Orders placed from 25 December 2025 onwards are covered by our standard 30-day return policy
UK Delivery
Fast, reliable delivery from our UK warehouse.
- FREE UK Delivery on orders over £50 + VAT
Estimated delivery: 2–4 working days
- UK Standard Delivery from £3.60 + VAT
Estimated delivery: 2–4 working days
- Next Working Day Delivery – £5.00 + 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.
Christmas Returns (Extended)
To give you extra peace of mind over Christmas:
- Orders placed between 10 October and 24 December 2025 can be returned up to 26 January 2026 (excluding Sale items)
- Orders placed from 25 December 2025 onwards are covered by our standard 30-day return policy
UK Delivery
Fast, reliable delivery from our UK warehouse.
- FREE UK Delivery on orders over £50 + VAT
Estimated delivery: 2–4 working days
- UK Standard Delivery from £3.60 + VAT
Estimated delivery: 2–4 working days
- Next Working Day Delivery – £5.00 + 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.