
The HSA 66 is a quiet and lightweight cordless hedge trimmer with droplet shaped blades to guide branches in between the teeth and cut them efficiently.
This clever design also delivers in-built cut protection as the droplet shapes overlap the sharp cutting teeth to reduce the risk of them coming into contact with you. The screw-on tip protector also protects the blades when trimming close to the floor or walls.
The HSA 66 is powerful but easy to use - just push the battery in and you're ready to go, without even needing to wear ear defenders.
The HSA 66 is part of our AP System range of tools and uses AP interchangeable batteries - it is not compatible with the AK batteries in the AK System.
- Run time on AP 200 battery: Up to 144 minutes
- Run time on AP 300 battery: Up to 180 minutes
Features

The HSA 66 is fitted with a tip protector to protect the blades from any damage when cutting near to the ground or along walls.

The HSA 66 is easy to store as well as being easy to use - simply hang it in the garage or shed using the eyelet built in to the handle.

The droplet shaped blades on the HSA 66 serve two purposes - first, they guide branches between the teeth and hold them there whilst trimming for a precise finish on your hedge. Secondly, the droplet shapes give you integrated cut protection as they overlaps the working blades, to reduce the risk of the blades making contact with your leg.
FAQs
QHow long does the battery last?A: The recommended AP 100 battery will last up to 72 minutes although this depends on what the tool is cutting.
QHow long does it take to charge?
A: To fully charge the recommended AP 100 battery using the AL 101 charger, it takes 100 minutes, or to charge it up to 80%, it takes 75 minutes.
QWhat battery does it use?
A: The tool is powered by a 36V Lithium-Ion battery.
QAre the batteries interchangeable?
A: Yes, they are interchangeable with other tools in the PRO Cordless range that use the AP batteries. They are not interchangeable with the COMPACT Cordless System tools.
QHow long is the blade on the HSA 66?
A: The blade is 50cm long.
QWhat should I wear when using this hedge trimmer?
A: We recommend that you wear snug-fitting clothes, goggles, gloves and sturdy boots or shoes, and tie back long hair.
Tips
#1Using the HSA 66You will get a straighter cut on your hedges, if you move the hedge trimmer in an upwards motion when trimming. The HSA 66 has a handy tip protector at the end of the blades, so you can trim closer to the ground without damaging the blades.
#2Cleaning your HSA 66
When you have finished using the hedge trimmer, remove the battery and wipe clean with a soft, damp cloth. We also suggest spraying a little resin solvent, like STIHL Superclean, onto the blades to remove sap or resin, protect them from corrosion and stop them getting stuck together.
#3Looking after your battery
Don't use a damp or wet battery in your HSA 66 and avoid using them in extreme temperatures (very hot or very cold). Find out more about looking after your battery on our blog.
#4Storing your HSA 66
Store your HSA 66 in a clean and dry area and keep out of the reach of children at all times. The HSA 66 has a handy eyelet on the handle so it can be hung on a hook in the shed.
#5Check for wildlife
Don’t forget to check your work area for wildlife before starting to use your tool. In particular, you should check for nesting birds before trimming hedges, as well as checking for other small animals such as hedgehogs before trimming long grass.
Technical Specifications
Recommended battery | AP 100 |
Rated voltage V | 36 |
Battery life time AP 100 min1) | up to 72 |
Run time with AP 200 min2) | up to 144 |
Run time with AP 300 min2) | up to 180 |
Run time with AP 300 S min3) | up to 223 |
Battery life time AR 1000 min1) | up to 450 |
Battery life time AR 2000 min1) | up to 660 |
Run time with AR 3000 min2) | up to 800 |
Weight kg4) | 3.1 |
Sound pressure level dB(A)5) | 83 |
Sound power level dB(A)6) | 94 |
Vibration value, right m/s27) | 2.3 |
Vibration value, left m/s27) | 3.7 |
Total length cm | 103 |
Cutting capacity mm | 23 |
Tooth spacing mm | 30 |
Stroke rate rpm | 3.000 |
1) Battery life times are approximate and may vary depending on application
2) Run times may vary depending on application
3) Running times are reference values and may vary depending on the application.
4) Without battery
5) K-factor according to DIR 2006/42/EC = 2.5 (dB (A))
6) K-factor according to DIR 2006/42/EC = 2.5 dB (A)
7) K-factor according to DIR 2006/42/EC = 2m / s ²
STIHL - Quality tools since 1926

1927
Andreas Stihl founds an engineering office in Stuttgart and develops his own chainsaw.

1928
STIHL becomes a brand. The name represents the ceaseless quest of the engineer and company founder Andreas Stihl to ease the heavy labour of forestry work with his inventions.

1930
STIHL presents his portable petrol-powered chainsaw at the Leipzig trade fair – it is well received and orders flow in from across Europe.