Hi Danny,
I usually go with a good brand I like for electrical tools, this list below is what I found online that's meant to be
the best quality then goes down the list but for a reasonable price and for reasonably straightforward work
I'd probably go for a Ryobi but personally I use my corded Ryobi line trimmer and if I don't want to use
a corded trimmer because it's not close to the house where I'm cutting I prefer the Honda 4 stroke trimmer.
I haven't had much luck with battery powered tools as I don't use them enough and the batteries die but If
I have petrol powered or corded they still work after being stored for a few years or even if they aren't used for 30 years.
Top Contenders for Best Quality Cordless Line Trimmers:
EGO Power+:
Why it's often recommended: EGO consistently receives high praise for its powerful 56V ARC Lithium batteries, which deliver gas-like performance. Their EGO Power+ Powerload with Line IQ ST1623T is frequently cited as a top overall choice due to its strong performance, easy line loading (Powerload and Line IQ features), and good battery life.
Key features: High voltage (56V), innovative line feeding systems, robust build quality, and a reputation for tackling tough jobs.
Good for: Homeowners with moderate to large yards, those who want powerful performance without the fuss of petrol, and those who appreciate advanced features.
Makita:
Why it's often recommended: Makita offers professional-grade cordless tools with a strong emphasis on durability and power. The Makita XRU15PT 36V or Makita 40V max XGT GRU07 are highly regarded for their versatility, ergonomic design, and ability to handle various trimming scenarios.
Key features: High torque, durable construction, often comes with multiple batteries for extended runtime, and part of extensive 18V or 40V battery platforms.
Good for: Users who value robust construction, professional results, and already have other Makita cordless tools.
Stihl:
Why it's often recommended: Stihl is a well-known name in outdoor power equipment, and their battery-powered line trimmers like the Stihl FSA 135 R or FSA 80 R carry on that legacy of quality and performance. They are often considered the "electrified version" of their reliable gas models.
Key features: Excellent power, durable components, useful safety features, and a focus on professional use.
Good for: Professionals or homeowners with large properties who need a reliable workhorse.
Milwaukee:
Why it's often recommended: Milwaukee's M18 Fuel Dual Battery String Trimmer is known for its immense power, often considered one of the most powerful cordless trimmers available.
Key features: High power output, often uses two batteries for extended runtime, and a strong commercial feel.
Good for: Users who need maximum power to cut through very thick vegetation and have other Milwaukee M18 tools.
Ryobi:
Why it's often recommended: Ryobi offers a great balance of performance and value, particularly with their Ryobi 40V HP Brushless Whisper RY402110VNM. It's praised for its excellent battery life and quiet operation.
Key features: Good battery runtime, quiet operation, and part of the extensive Ryobi 40V or 18V ONE+ system, offering versatility with other tools.
Good for: Homeowners with larger properties who prioritize battery life and quieter operation, and those looking for a good balance of features and price.
Factors to Consider When Choosing:
Battery Voltage and Amp-Hours (Ah): Higher voltage (e.g., 40V, 56V, 80V) generally indicates more power, while higher Ah means longer runtime.
Motor Type (Brushed vs. Brushless): Brushless motors are more efficient, offer more power, and have a longer lifespan. Most quality cordless trimmers now feature brushless motors.
Cutting Swath/Width: A wider cutting swath means you can clear more area in less time.
Line Feed Mechanism:
Bump-feed: You tap the head on the ground to advance the line.
Automatic feed: The line advances automatically.
Powerload/Auto-loading: Innovative systems (like EGO's) that make reloading line extremely easy.
Weight and Balance: A well-balanced and lighter trimmer will reduce fatigue, especially for longer jobs.
Ergonomics and Features: Look for adjustable handles, telescoping shafts, and variable speed settings for better control and comfort.
Attachment Capability: Some models allow you to swap out the trimmer head for other attachments like edgers, pole saws, or blowers, increasing versatility.
Your Existing Battery Platform: If you already own other cordless tools from a specific brand (e.g., Makita, Ryobi, DeWalt), sticking with that brand can save you money on batteries and chargers.
If you're looking for the absolute "best quality" in terms of performance and reliability, brands like EGO, Makita, and Stihl consistently stand out. However, for excellent performance with a good balance of features and value, Ryobi is also a strong contender. Always consider your specific needs and budget when making your final decision.
A Stihl FSA 135 R is about $860.new the Ryobi Whisper RY402110VNM is $320.
Review for the Ryobi
https://www.reddit.com/r/ryobi/comments/13w5m3i/40v_hp_brushless_whisper_series_17trimmer_ry402110/Others may chime in on what they prefer also.
Cheers
Max.