Overview
Husqvarna 525iLST Professional Battery String Trimmer
The Husqvarna 525iLST is a high-performance, professional-grade battery string trimmer designed for full-time use. Delivering power equivalent to a 25cc gas unit, it combines strong cutting performance with the convenience and low maintenance of battery operation.
Lightweight and well-balanced, this trimmer is built for all-day comfort and productivity. The brushless E-TORQ motor delivers efficient, consistent power, while the 18.1″ cutting width allows you to cover more ground in less time.
Designed for professionals, the 525iLST features an intuitive keypad with 3-speed modes, integrated connectivity for FleetServices™, and a durable, weather-resistant IPX4 design—so you can work in any conditions.
Note: Battery and charger sold separately.
Key Features
- Professional Performance: Power equivalent to a 25cc petrol trimmer
- Brushless E-TORQ Motor: High efficiency, consistent torque, and long service life
- 18.1″ Cutting Width: Increased productivity for large areas
- 3-Speed Mode: Optimize power and runtime based on conditions
- ActiveCool System: Maintains performance in demanding conditions
- Weatherproof (IPX4): Reliable operation in rain and harsh environments
- Battery Through Body Design: Improved balance and protection from dirt and moisture
- Integrated Connectivity: Compatible with Husqvarna FleetServices™ for tracking and diagnostics
- Low Noise Operation: Quieter performance for operator and surroundings
- Tap ‘n Go Line Feed: Quick, easy line advancement
- Metal Skid Plate: Added durability and protection
- Optimized Shaft & Gear Angle: Improved cutting performance and ergonomics
Specifications
Capacity
- Cutting Width: 18.1 in
Motor & Performance
- Motor Type: Brushless (BLDC E-TORQ)
- Maximum Power Speed: 10,500 rpm
- Max Output Shaft Speed: 7,200 rpm
Battery
- Battery Voltage: 36 V
- Compatible Batteries: BLi200, BLi300, BLi950X
- Batteries Included: None
Equipment
- Trimmer Head: T35X M10
- Gear Ratio: 1.46
- Drive Gear Angle: 30°
Dimensions & Weight
- Weight (without battery & cutting equipment): 7.5 lbs
- Length: 71.3 in
- Width: 11 in
- Tube Diameter: 0.945 in
- Tube Length: 56.54 in
Sound Levels
- Sound Pressure at Operator’s Ear: 80 dB(A)
Vibration Levels
- Front Handle: 2.7 m/s²
- Rear Handle: 2.5 m/s²
Why Choose the 525iLST?
The Husqvarna 525iLST is built for professionals who need gas-level performance without the downsides of fuel engines. With its powerful brushless motor, quiet operation, and advanced features like connectivity and 3-speed control, it delivers top-tier performance for demanding landscaping work.

