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HSA 45 Battery Hedge Trimmer
HSA 45 Battery Hedge Trimmer
HSA 45 Battery Hedge Trimmer
HSA 45 Battery Hedge Trimmer

HSA 45 Battery Hedge Trimmer

AI LINE ICON Integrated Battery
Regular price
Sale price
If you don't already own a compatible battery & charger, please choose a different option above.
Please note, you need to purchase an installation kit in order to install your iMOW.
Please note, you need to purchase an installation kit in order to install your iMOW.

The HSA 45 battery hedge trimmer is very lightweight, easy to maneuver and is perfect for trimming annual growth on the hedges in your yard.

With an integrated lithium-Ion battery, the HSA 45 couldn't be easier to use - simply pop in the activation key, switch on and go. It is also really quiet so you can get on with your garden jobs without disturbing the peace. The precision-ground blades deliver a neat cut, so you can get your shrubs in order in no time.

  • Runtime on built-in battery: up to 40 minutes


Quiet technology

Quiet technology

STIHL battery tools are so quiet you don't even need to wear ear protection.

Compact and ergonomic Compact and ergonomic

The integrated battery cells mean that the tool is optimally balanced. The HSA 45 is easy-to-handle. Its streamlined design creates plenty of room to manoeuver.

Soft handle

Soft handle

The HSA 45 can only be operated with two hands, so you are always in control. The soft-grip front handle can be operated from all sides so that you can work at exactly the right angle for your hedges.

Tip protector with hanging eye

Tip protector with hanging eye

The tip protector protects the tip of the blades from damage. It also features a hanging eyelet for easy storage in the garage or shed.

Pruning system

Pruning system

The blades on the HSA 45 are precision ground, so you get a precise cut on your hedges.

Activation key

Activation key

The tool can only be used with the activation key. If the key is removed, the tool switches off to prevent it from being started accidentally. The HSA 45 can then be safely stored and transported.

Charge level indicator

Charge level indicator

There are four LEDs on the side of the trimmer to show you how much charge you have left. Just press the button next to the LEDs and you will be able to quickly see the charge level.

Charger cable

Charger cable

The built-in battery in the HSA 45 is easily charged using the charger cable.


Question: Can you buy a replacement safety key for the HSA 45?

A: Yes. We provide spare parts for at least ten years after we've stopped selling a product. We don't sell these directly online, but you can get replacement parts from any of our approved STIHL Dealers.


Question: How long does the battery last?

A: The battery will last up to 40 minutes or enough time to trim up to 80 m² of hedges. This does depend on what is being cut and how the tool is being used.

Question: How long does it take to charge?

A: To fully charge the battery it takes 210 minutes, or to charge it up to 80%, it takes 145 minutes.


Question: What property size will it maintain?

A: The HSA 45 is perfect for normal city property.

Question: What battery does it use?

A: The tool is powered by an 18 V lithium-ion battery.

Question: Are the batteries interchangeable?

A: The batteries are integrated into the tool, so they are not interchangeable. 


Question: How long is the blade on the HSA 45?

A: The blade is 20"/50 cm long.


Question: What should I wear when using this hedge trimmer?

A: We recommend that you wear snug-fitting clothes, eye protection, gloves and sturdy boots or shoes, and tie back long hair.


Question: What size branches can I cut with the HSA 45?

A: You can cut branches up to 0.3"/8 mm in diameter.

Question: Does the hedge trimmer come with a blade cover?

A: Yes, your hedge trimmer comes with a scabbard to cover the blades during transport or storage. On new machines, the scabbard will be quite tight so you may need to use some force to remove it for the first few times. Just hold the scabbard about half way down and pull it away from you so your hands or body cannot come into contact with the blades.


#1 Using the HSA 45

You will get a straighter cut on your hedges, if you move the hedge trimmer in an upwards motion when trimming. The HSA 45 has a handy tip protector at the end of the blades - this means you can trim closer to the ground without damaging the blades.

#2 Cleaning your HSA 45

When you have finished using the HSA 45, remove the activation key. We suggest spraying a little resin solvent onto the blades to remove sap or resin, protect them from corrosion and stop them getting stuck together.

#3 Storing your HSA 45

We recommend that you store your HSA 45 hedge trimmer with around 40-60% charge (2 green LEDs), ideally within a temperature range of 0 to 50 degrees centigrade. Store it in a clean and dry area and keep out of the reach of children at all times.

Technical data

Rated voltage V 18
Weight KG / LB  2.3 / 5.1
Sound pressure level DB(A)  54
Vibration value, left M/S²  1.4
Vibration value, right M/S²  1.5
Total length IN / CM 36 / 91
Blade length IN / CM 20 / 50
Cutting length IN / CM 20 / 50
Tooth spacing IN / MM 0.9 / 24.1
Battery life time MIN  up to 40

STIHL - Quality tools since 1926

STIHL Factory

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

STIHL Logo 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.

STIHL Chainsaw 1930

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

Learn more about the history of STIHL



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