Product overview
The 525iRXT is a professional, battery-powered brushcutter designed for full-time use. It pairs a brushless E-TORQ motor with a 46 cm cutting diameter to deliver performance comparable to a 25 cc petrol machine, while remaining lightweight and well balanced. The tool includes an anti-vibration high-tower bullhorn handle, ErgoFeed™ line feed and built-in connectivity; battery and charger are not included.
High cutting capacity
The high-torque brushless motor and 46 cm cutting width handle thick grass and tougher growth reliably, giving you the throughput expected from a professional machine.
Lightweight, balanced design
At 4.2 kg (excluding battery and cutting equipment) and with a through-body battery position, the machine is easy to manoeuvre and causes less fatigue during prolonged use.
Flexible battery options
Part of the BLi‑X 36 V system: you can use the internal battery for truly cordless operation or switch to a backpack/belt solution for extended run times. Batteries and chargers are sold separately.
Key specification
| Article ID | 970551401 |
| Battery system | Lithium Ion |
| Battery voltage | 36 V |
| Motor type | BLDC (brushless) |
| Weight | 4.2 kg |
Full specification
| Product size height | 53 cm |
| Product size length | 176 cm |
| Product size width | 66 cm |
| Battery Chemistry | Lithium Ion |
| Battery voltage | 36 V |
| Motor type | BLDC (brushless) |
| Maximum power speed | 10500 rpm |
| Maximum rpm output shaft | 7200 rpm |
| Cutting width (metric) | 46 cm |
| Connectivity | BLE-HAPP |
| Sound pressure level at operators ear (LpA) | 82 dB(A) |
| Sound power level, guaranteed (LWA) | 93 dB(A) |
| Equivalent vibration level (ahv, eq) left handle | 2.2 m/s² |
| Equivalent vibration level (ahv, eq) right handle | 1.3 m/s² |
| Gear ratio | 1 |
| Drive gear angle | 30 ° |
| Weight (excl. battery and cutting equipment) (metric) | 4.2 kg |
| Tube diameter (metric) | 24 mm |
| Tube length (metric) | 1436 mm |
| Grass blade | Grass 255-4 |
| Harness | Balance XB |
| Saw blade | Not included |
| Trimmer head | E35B |
| Handle type | Bullhorn |
| Weight (excl. battery) (metric) | 4.2 kg |
| Packaging length | 1830 mm |
| Packaging width | 265 mm |
| Packaging height | 189 mm |
| Power source | Battery |
| WEEE Classified | Yes |
| Battery charger | Not included |
| Product size width (imperial) | 26 in |
| Battery | Not included |
| Number of batteries included | 0 |
| Product size length (imperial) | 69.3 in |
Key features

Outstanding cutting capacity
The unique, Husqvarna developed high torq motor combined with the outstanding cutting diameter provide highest capacity.

Linear Power Output
Specially selected components, intelligent electronics, and an efficient cooling system ensure consistent, high output power regardless of the battery’s charge level. This helps maintain productivity throughout use.

Integrated connectivity
Machines with a built-in connectivity module can easily be connected with Husqvarna Fleet Services™. Allowing you to see each machine’s last known location, its usage stats and service history – and much more. This also facilitates updates of the machine’s firmware, so that it’s always compatible with the latest functions in Husqvarna Fleet Services™.

Flexible BLi-X Battery System
The high performing BLi-X 36V battery system offers a wide range of options, from lightweight integrated- to backpack batteries. The batteries within our 36V system are built to be used over a long time, are quick to recharge and even quicker to swap for continuous use. Our BLi-X battery system allows flexible use in different Husqvarna tools. You will always find a tailored battery solution that perfectly suits your task at hand.

ActiveCool
Husqvarna ActiveCool enables efficient cooling of the battery, both during charging and discharging. Thanks to the active cooling system your battery powered product remains fully productive, also in demanding conditions while the lifetime of your batteries prolongs.

For full-time professional use
High-quality materials and proven components, tested according to highest standards offers high durability and decreased service costs.

Weatherproof (IPX4)
This battery-powered Husqvarna machine fulfils the IPX4 classification for rain resistance. This makes it a long-lasting and reliable tool that can be used all year round in all weather conditions.

Lightweight and well balanced
Our machines have a compact, optimized design. This makes them lightweight and well balanced – allowing you to work comfortably in all situations.

Truly cordless
The machine offers you the flexibility to work truly cordless with an internal battery. Alternatively, the machine can also be connected to a backpack battery or battery belt. Whatever suits your preferences and needs.

Quiet operation
The noise level from our battery machines are up to 13 dB(A) lower than a petrol machine – which is a huge difference. A reduction of 3 dB(A) is usually perceived as a halving of the noise level. This makes work a lot more pleasant for you – and also allows you to work in the most public of settings.

Battery Through Body Design (Pat.pend.)
Smart battery pack position, placed horizontally through the body of the machine. Reduces the risk of having dirt, chips, dust and water accumulate in the battery compartment, causing connector issues. Also, it means the weight of the battery can be placed in or near the desired centre of gravity and in the rotational axis of the product, resulting in increased maneuverability. The through body design also offers a high degree of flexibility since it allows battery packs of different sizes to be used.

ErgoFeed™ trimmer function
The ErgoFeed™ function allows you to feed the trimmer line with a simple push of a button located on the right handle. This reduces the risk of unintentional feed, minimising trimmer line consumption. The ErgoFeed™ trimmer head is designed with a minimum of moving parts which makes it robust and durable.

High handlebar tower
High handlebar tower offers free leg movement when working on slopes.

LowVib™
Effective anti-vibration dampeners absorb vibration, sparing the user’s arms and hands.

Adjustable handlebar
Adjustable and ergonomically designed handlebar for best comfort.

Ergonomic rubber handles
The rubber handle offers good grip and thanks to the ergonomic design, the work is less tiring for your arms.

Brushless E-TORQ Motor
The Husqvarna-developed E-TORQ motors are perfectly adapted for each application. The brushless design minimizes the number of moving parts and the motors are built to withstand tough, prolonged professional use. They are completely maintenance-free and will last for the product’s whole lifespan.

Intuitive advanced key pad
The key pad is very easy to operate and equipped with a LED indicator showing the battery status.

Synchronized Output
This technology features intelligent interaction between the tool and battery, ensuring optimized output power for each specific combination. To extend battery life, the output power can also be temporarily adjusted in situations where the tool is used too intensively.

3-Speed mode
The 3-speed mode allows you to maximise your runtime by adjusting the power output to the current working conditions.
Product video
FAQs
Will this fit my machine?
Fitment can vary by model and deck size. Send us your mower model (and deck size if applicable) and we’ll confirm compatibility before you order.
Do I need any extra brackets or fitting kits?
Some accessories require a mounting kit or specific brackets depending on your machine. If you’re unsure, ask us and we’ll advise the correct setup.
Can you fit it for me?
Yes — if you’d like installation, let us know when ordering and we can arrange fitting (collection, workshop fit, or on-site depending on the product).
Are the battery and charger included?
No. The 525iRXT is supplied without battery or charger. It uses Husqvarna’s BLi‑X 36 V battery system — choose an integrated battery for light, cordless use or a backpack/belt battery for extended runtime.
Can I use this on slopes and in public areas?
Yes. The high handlebar tower and bullhorn handle give good leg clearance for slopes, while LowVib™ dampening improves comfort. The battery powertrain also runs quieter than an equivalent petrol machine (sound pressure LpA 82 dB(A), guaranteed sound power LWA 93 dB(A)).
How do I manage service and updates for a fleet?
The machine includes an integrated connectivity module (BLE‑HAPP) that links to Husqvarna Fleet Services. From there you can view usage, last known location and service history, and apply firmware updates to keep machines up to date.
Additional information
| Weight | 3.500 g |
|---|---|
| UPC|EAN | 7392930770157 |





