40V HP Brushless Carbon Fiber Attachment Capable String Trimmer with 4.0 Ah Battery & Charger

Model: #RY40290

4.7 | 493 Reviews
  • Featuring 40V HP Technology for Maximum Power
  • Carbon Fiber Shaft Provides Added Durability
  • EXPAND-IT™ Attachment Capability Allows You to Transform Your Trimmer Into Other Attachment Capable Tools
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More Power. Longer Runtime. Longer Motor Life.


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* Battery Warranty

All RYOBI batteries are covered by a 3-year warranty.

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40V 4.0 Ah Battery
Recommended Line Diameter
Compatible with 0.080" or 0.095" cutting line
Shaft Type
Maximum Cutting Path Diameter
11.6 lbs.
5 year tool warranty and 3 year battery warranty



40V HP Brushless Carbon Fiber Attachment Capable String Trimmer with 4.0 Ah Battery & Charger
Rated 5 out of 5 by from Affordable, easy to use & and great product I bought this for my new house about 2 weeks ago with little experience on how to use it or put it together but it took me about 2 minutes to set up and was so easy to use and really strong cut through my grass like nothing
Date published: 2023-05-24
Rated 4 out of 5 by from Still too heavy with battery installed Overall pleased with product. Have not had to change string yet but hope its as easy as they say it is in the instructions. Overall weight when battery installed still needs improvement.
Date published: 2023-05-24
Rated 4 out of 5 by from Poor customer support Deflector shield broke first time it was used. Unable to contact customer service after multiple attempts. Finally exchanged it at Home Depot.
Date published: 2023-05-24
Rated 5 out of 5 by from User friendly I started buying Ryobi products four years ago when I found myself in need of easy and dependable tools and machines. Since then I have purchased hedge trimmers pole chainsaw, weed whacked all battery powered and strong. That have been simple to put together even for a non professional. And there power has always been phenomenal! I want to give a big thank you and shout out to the engineers who designed and and the manufacturers who built this top of the line product.
Date published: 2023-05-21
Rated 5 out of 5 by from Better than expected FANTASTIC! Easy assembly, quick charge, easy start, not to heavy. Battery lasted enough time to do the job and more.
Date published: 2023-05-21
Rated 4 out of 5 by from Great product battery has awesome power I borrowed a family members battery trimmer last year and liked it so much I bought o e last week along with an edger attachment
Date published: 2023-05-21
Rated 5 out of 5 by from Quiet works well best weedeater out there Best weedeater ever made would totally recommend to others
Date published: 2023-05-19
Rated 5 out of 5 by from I’m loving it All the power I need to do a 1/2 acre. Some pretty rough stuff too. This is my third Ryobi cordless trimmer and by far my favorite. Got it on sale so a good bargain. It came with a 40v battery and charger so it got me stain the 40v realm.
Date published: 2023-05-19
Rated 4 out of 5 by from Works well! I am happy with this trimmer overall. It is very powerful and efficient. One thing that makes it less than ideal for me is its weight. I'm an older woman who maintains her own large property well. That said, a lighter tool would make it easier to use for longer periods of time.
Date published: 2023-05-18
Rated 5 out of 5 by from Easy to use for women! I bought this yesterday and used it. Best battery powered trimmer I’ve ever used. Maybe I’m biased because I’m a Ryobi fan!
Date published: 2023-05-18
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