STIHL AK 20: The Versatile Core of Your Garden Maintenance
The STIHL AK 20 is a lightweight, 36V Lithium-Ion battery designed to sit at the heart of the AK System. Striking the perfect balance between weight and power, it’s the ideal energy source for medium-to-large gardens, providing enough runtime for demanding tasks without making your tools feel heavy or unbalanced.
Performance & Compatibility
The AK 20 is compatible with the entire STIHL AK System of cordless tools. Whether you’re trimming hedges, blowing leaves, or mowing the lawn, this battery delivers consistent, fade-free power until the very end of the charge.
Voltage: 36V
Energy Content: 144 Wh
Weight: 1.2 kg
Estimated Runtimes
| Tool Category | Example Model | Estimated Runtime |
| Chainsaws | MSA 120 C-B | Up to 35 Minutes |
| Hedge Trimmers | HSA 50 | Up to 45 Minutes |
| Leaf Blowers | BGA 57 | Up to 22 Minutes |
| Grass Trimmers | FSA 57 | Up to 25 Minutes |






