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40V HP Brushless 15 in. Cordless Carbon Fiber Shaft Attachment Capable String Trimmer with 4.0 Ah Battery and Charger

  • Includes High Performance Brushless Motor for Increased Power
  • Lightweight Carbon Fiber Shaft Provides Increased Durability
  • Works with all RYOBI 40V Batteries
  • See More Details

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Product Overview

The RYOBI 40V HP Carbon Fiber Attachment Capable String Trimmer gives you the cordless convenience you want with the GAS-LIKE POWER you need. A carbon fiber shafts provides added durability. The EXPAND-IT attachment capability allows you to transform your trimmer into an edger, blower, pole saw and many more tools with the available attachments, meaning you can save time, space, and money. The premium HP Brushless Motor provides more power, longer runtime, and a longer motor life. This unit is equipped with the REEL EASY+ 3-in-1 Bump Feed Head with SPEED WINDER, which can be reloaded in 60-seconds or less. This REEL EASY+ head can function as a bump feed head, bladed head or fixed line head. The variable speed trigger and 2-speed switch deliver increased control for any application. The adjustable 13 in. to 15 in. cutting width allows you to optimize your trimmer for increased runtime or increased productivity. This lightweight and well-balanced design also has an adjustable front handle for user comfort. The included 40V rapid charger, charges your RYOBI 40V batteries 4X faster than the standard charger. The RYOBI 40V HP String Trimmer, batteries, and rapid charger are all compatible with 50+ RYOBI 40V products. This tool is backed by a 5-Year Tool Warranty.
  • Added durability with a carbon fiber shaft
  • Attachment capable: works with RYOBI EXPAND-IT attachments
  • Brushless motor for maximum power and durability
  • Reel Easy+ 3-in-1 bump feed head
  • Bump feed head for easy reloads in under 60-seconds, includes speed winder, compatible with 0.080 in. or 0.095 in. cutting line
  • Bladed head with heavy-duty serrated blades, ideal for heavy weeds and thick grass
  • Fixed line head, designed for fast and simple reloads, no winding or bumping required, line pivots for increased durability and long-life
  • Premium dual 0.095 in. line
  • Variable speed with 2-speed trigger for more control
  • Adjustable 13 in. to 15 in. cut swath
  • Adjustable front handle for user comfort
  • Includes RYOBI 40V 4.0 Ah lithium battery
  • Includes a rapid charger for 4X faster charging
  • Works with all RYOBI 40V lithium batteries
  • 5-year tool warranty, 3-year battery warranty






  • Click here for more information on Electronic Recycling Programs
  • California residents

Info & Guides

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BrandRYOBIRYOBIRYOBIRYOBI
Name40V Brushless Cordless Battery Attachment Capable String Trimmer with 4.0 Ah Battery and Charger40V HP Brushless 15 in. Cordless Carbon Fiber Shaft Attachment Capable String Trimmer with 4.0 Ah Battery and Charger40V Brushless Cordless Battery String Trimmer and Jet Fan Blower Combo Kit (2-Tools) with 4.0 Ah Battery and Charger40V Expand-It™ Kit with String Trimmer, Edger, Pole Saw & Leaf Blower Attachments with 4.0 Ah Battery and Charger
Price
Ratings
(3687)
(260)
(2955)
(8930)
Voltage (v)40v40v 40v
FeaturesAttachment Capable,Brushless,Edger Conversion Capable,Precut Lines,Rechargeable,Straight Shaft,Zero EmissionsAttachment Capable,Brushless,Edger Conversion Capable,Precut Lines,Rechargeable,Straight Shaft,Zero Emissions Attachment Capable,Precut Lines,Rechargeable,Straight Shaft
Line Advance SystemBumpBump Bump
Trimmer Line TypeStringString String
Battery TypeLithium IonLithium Ion Lithium Ion
Shaft TypeStraightStraight Straight
Start TypeElectricElectric Electric
Power TypeCordlessCordlessBatteryCordless
RefurbishedNoNo No
Voltage (volts) 40
View ProductView ProductView ProductView Product

Specifications

Dimensions

Assembled Depth (in.)
35.31 in
Assembled Height (in.)
6.65 in
Assembled Width (in.)
7.87 in
Line Style Size
.095
Maximum cutting path diameter (in.)
15
Recommended Line Diameter (in.)
.095
Shaft Length (in.)
50.5

Details

Assembly Required
Yes
Battery Amp Hours
4 Ah
Battery Type
Lithium Ion
Battery/Charger
(1) 4 Ah Battery & Charger Included
Charger Included
Charger Included
Features
Attachment Capable,Brushless,Edger Conversion Capable,Precut Lines,Rechargeable,Straight Shaft,Zero Emissions
Head Type
Wind without Assembly
Included
Battery,Blade,Multiple Heads,No-tool Line Replacement,String
Line Advance System
Bump
Number of Total Batteries Included
1
Number of Trim Lines
4
Power Type
Cordless
Product Weight (lb.)
11.05
Refurbished
No
Returnable
30-Day
Shaft Type
Straight
Start Type
Electric
Tools Included
Battery,Charger,String Trimmer
Trimmer Line Type
String
Trimmer Type
Hand Held
Voltage (v)
40v

Warranty / Certifications

Manufacturer Warranty
5-Year Limited Tool Warranty, 3-Year Limited Battery Warranty

Questions & Answers

22Questions17Answers

Does this work with all expand-it attachments, particularly the hedge trimmer? The graphic of att...

Asked by SHII June 20, 2021
3
Answers

It works with all the Expand-it attachments I have including the hedge trimmer. It also works with my much older Homelite and Craftsman attachments including a snow blower and edger

I am replacing line trimmer string and I can't get the head on. If I buy a replacement spool, wil...

Asked by John June 5, 2021
1
Answer

John, thank you for your interest in the RYOBI 40V HP Brushless 15 in. Cordless Carbon Fiber Shaft Attachment Capable String Trimmer. A replacement spool should go on the same as the one that came with this product. Thank you for asking, If you have further questions and would like to speak with a RYOBI Customer Experience Professional, please call, 1-800-525-2579 M-F from 9am-6pm EST. Hope this helps! - Vini

I have brand new HP trimmer,oil like substance leaking out of carbon shaft and running onto shield,any ideas?

Asked by Tom June 3, 2021
2
Answers

Tom, thank you for your interest in the RYOBI HP 40V Brushless Cordless Carbon Fiber Shaft Attachment Capable String Trimmer - 4.0 Ah Battery and Charger Included. It sounds like you should make an exchange as this is a new product and the other option would be to take the product to a service center. Thank you for asking, If you have further questions and would like to speak with a RYOBI Customer Experience Professional, please call, 1-800-525-2579 M-F from 9am-6pm EST. Hope this helps! - Vini

VERY disappointed to find out I didn’t gat a 40V HP battery with the 40V HP trimmer I just bought...

Asked by MrChips June 3, 2021
2
Answers

MrChips, thank you for your interest in the RYOBI HP 40V Brushless Cordless Carbon Fiber Shaft Attachment Capable String Trimmer - 4.0 Ah Battery and Charger Included. This product doe not come with an HP battery. At this time the HP batteries are sold separately. Thank you for asking, If you have further questions and would like to speak with a RYOBI Customer Experience Professional, please call, 1-800-525-2579 M-F from 9am-6pm EST. Hope this helps! - Vini

How long does it take to charge the battery from empty to full charge on the Carbon Fiber Model #...

Asked by tjk May 28, 2021
2
Answers

Tjk, thank you for your interest in the RYOBI HP 40V Brushless Cordless Carbon Fiber Shaft Attachment Capable String Trimmer - 4.0 Ah Battery and Charger Included. If you are using a rapid charger, the battery should charge within about an hour. Thank you for asking, If you have further questions and would like to speak with a RYOBI Customer Experience Professional, please call, 1-800-525-2579 M-F from 9am-6pm EST. Hope this helps! - Vini

Does this or any Ryobi trimmer spin clockwise? My gas ones spin clockwise, but now it’s time for ...

Asked by Ramfade May 26, 2021
1
Answer

Ramfade, thank you for your interest in the RYOBI HP 40V Brushless Cordless Carbon Fiber Shaft Attachment Capable String Trimmer - 4.0 Ah Battery and Charger Included. Yes, this spins clockwise. Thank you for asking, If you have further questions and would like to speak with a RYOBI Customer Experience Professional, please call, 1-800-525-2579 M-F from 9am-6pm EST. Hope this helps! - Vini

Hi there 1. Can you provide which batteries are HP batteries? 2. what are the power and torque wh...

Asked by Andrew May 26, 2021
1
Answer

Andrew, thank you for your interest in the RYOBI HP 40V Brushless Cordless Carbon Fiber Shaft Attachment Capable String Trimmer - 4.0 Ah Battery and Charger Included. HP batteries will be available for purchase through The Home Depot once they are released. Torque is not a rating measured on String Trimmers. Thank you for asking, If you have further questions and would like to speak with a RYOBI Customer Experience Professional, please call, 1-800-525-2579 M-F from 9am-6pm EST. Hope this helps! - Vini

According to the manual, this trimmer is not recommended for use with the hedge trimmer or brush ...

Asked by Mac May 12, 2021
2
Answers

@RYOBI, thanks for the clarification on the brush cutter. How about the hedge trimmer?

Hello, can Ryobi tell me why they do not sell a 40v HP battery for their 40v HP trimmer. I have l...

Asked by gary May 8, 2021
1
Answer

Gary, thank you for your interest in the RYOBI HP 40V Brushless Cordless Carbon Fiber Shaft Attachment Capable String Trimmer - 4.0 Ah Battery and Charger Included. The 40V HP batteries are not currently available. Thank you for asking, If you have further questions and would like to speak with a RYOBI Customer Experience Professional, please call, 1-800-525-2579 M-F from 9am-6pm EST. Hope this helps! - Vini

Correct trimmer line diameter?

Asked by Zorchmeier May 7, 2021
2
Answers

Zorchmeier, thank you for your interest in the RYOBI HP 40V Brushless Cordless Carbon Fiber Shaft Attachment Capable String Trimmer - 4.0 Ah Battery and Charger Included. This Trimmer is compatible with 0.080 in. or 0.095 in. cutting line. Either will work. Thank you for asking, If you have further questions and would like to speak with a RYOBI Customer Experience Professional, please call, 1-800-525-2579 M-F from 9am-6pm EST. Hope this helps! - Vini

40V HP Brushless 15 in. Cordless Carbon Fiber Shaft Attachment Capable String Trimmer with 4.0 Ah Battery and Charger - page 2

Customer Reviews

  • 4.6
    out of 261 reviews
  • 93% recommend this product
Filter by:
Showing 1-10 of 261 reviews
Replaced my 35 year old Royobi with this model
After reading reviews and talking with the Royobi representative at our local store yesterday I chose this model. I’m with dealing with mixed gas eapecially ethinol which really ruins any small engine. My old head unit finally died and i wanted to still use my Royobi attachments. This tool accepts all of them. I am convinced that the new battery systems are relible. It took less than 40 minutes to charge the new battery. The new trimmer is lighter and easier to handle. Since it was too hot to work today, I spent 20 minutes clearing some heavy brush and blackberry bushes only using the standard head. OMG! What a beast. Quiet, powerful and amazingly easy to handle. I wiped out two rough sections in minutes and still have half charge. Ill be going back with the heavy blade and cultivator later. All my older attachments fit and work well. I have the original string trimmer, hedger, brush blade and cultivator. The best way to use the cultivator is to work backwards rather than pushing forward. This new power head can do the job. The other positives for me is not needing ear protection and not annoying neighbors.
by BobOB
Lightweight beast
[This review was collected as part of a promotion.] Bought this a month ago and I’ve gotta say, this is a light weight trimmer. Love the carbon fiber shaft!
by Rays47
Great buy
Did the job cut front yard and back yard and more. Very quiet weedeater. Cut through tall weeds with ease using the blade attachment. Also came with .80 line. Did whole yard off of one full charge battery. My only complaint kind of heavy with 40v battery on it. Beside that i like my purchase.
by 05312021
Awesome Build Quality
[This review was collected as part of a promotion.] I am thoroughly pleased with the build quality and ease of use. I read the manuals just to see if there was more to learn on how to use, but it’s all very straight forward. Assembly was a breeze, virtually nothing to do. This is very rugged, built to last!
by Morri88
Not gas-like power. I am coming out of a 20-year old Craftsman gas string trimmer with an edger a...
Not gas-like power. I am coming out of a 20-year old Craftsman gas string trimmer with an edger attachment. I was never able to stall the gas trimmer while edging. This thing stalls more often than I'd like it to. I used it to edge (with the edger attachment) around flowerbeds prior to putting mulch down. Every 20 ft or so the edger will be clogged with tightly packed dirt and the motor can't turn. Never had that issue with the 26cc gas unit. The Ryobi cordless trimmer is smoother than the gas counterpart thanks to the electric motor, but not lighter. The powerhead weighs as much as a gas unit with the battery installed. We have a 100ft burning bush hedge that gets tiring to trim with a gas timer (with a hedge trimming attachment) holding above my head. It doesn't look like this is going to be any easier. Furthermore, it isn't very quiet either. While not as loud as a gas unit, with he trim dead attached it is much louder than the Ryobi 40V mower. Unlike the gas units, you don't have to mix gas and oil and deal with the starting issues, clogged carburetors, spark plugs, engine heat, and exhaust fumes. I bought this with a 40V mower and they can share batteries. The battery that cam with it is not adequate to do the trimming, edging and the blowing required for my yard. The 6Ah replacement batteries at Home Depot are slightly smaller and about the same weight as the 4Ah battery that came with this unit. I opted to get an additional 6Ah battery because they weigh the same and can be used in the mower also. But it costs about 80% of the price of this trimmer package. For a small yard this will work fine with the included battery, but you'd probably have to buy extra batteries. Factor at least extra 60% into the price to account for the spare battery. At that point it is hard to match the cost of a gas trimmer unless you have other yard equipment that can share the batteries.
by Hasman
10 people found this helpful
Overall the Ryobi string trimmer is solidly built and lightweight with lots of power. Brushless ...
Overall the Ryobi string trimmer is solidly built and lightweight with lots of power. Brushless motors give you more power and should last longer. 4 AH battery gives a lot of run time. 40volt gives gas like power. A good choice if your planning to buy other attachments. I like the look of the carbon fiber shaft and I imagine that's part of why it's so light. I like how the head part can be detached for other attachments, theoretically saving money from having to buy the motor assembly for every tool. I'm a little nervous on how the connecter at the end of the shaft will hold up over time. It does look to be designed better than the detachable Ryobi trimmer I had about 15 years ago. see picture for details of how the other shafts attach. The grip on the head is a little awkward and the trigger is a little hard to press and lacks a lock button for long jobs. Could get tiring if using more than 15 minutes. The string trimmer itself is very nice with a big 15 inch width. the string sits a bit high up so getting down close to the ground might be a bit tricky. The handle to load the string is a nice and tough. It is very easy to load and the string doesn't get stuck. Comes with a 2nd head for the plastic blades used for cutting thicker tall grass or thin twigs. Makes it convenient to swap the heads quickly
by Joe
2 people found this helpful
Powerful, versatile, lightweight, brushless electric string trimmer kit with battery and charger....
Powerful, versatile, lightweight, brushless electric string trimmer kit with battery and charger. This unit, with max 15" swath, truly competes with my gas Echo for speed and power -- and with a lot less required maintenance. With the 4.0 ah battery attached, it balances nicely, and after 15 min. of trimming down last year's lily turf plants and hostas around our deck, it was still showing more than half charged. It includes the Reel Easy reel with bump-head feeder and winder that allows for easy reloading of the spool (along with fixed string and bladed options) and the carbon shaft accommodates other attachments, including edging accessories and pole saws. The controls aren't ultra refined (the combined safety and trigger, in particular, feel a bit flimsy, and I'm concerned at their longevity), but overall, it's a great unit with a surplus of power, the battery charges quickly, and the five-year warranty offers peace of mind. If you're interested in transitioning to battery-operated yard tools, this is a great place to start. Highly recommended.
by Chris
6 people found this helpful
We got this trimmer mostly for our farm property and around the house. We do not want the upkeep ...
We got this trimmer mostly for our farm property and around the house. We do not want the upkeep of a motorized trimmer for small jobs. It was easy to put together the few pieces and was ready to trim grass. The grip/handle is comfortable. The 40 volt battery seems to have adequate power and lasted for quite a while. If I had more to mow/trim, I would get a second battery. It is fairly light-weight and easy to handle. The string was easy to add and replace. I was not overly impressed with the other heavy weed attachment. There were no instructions on how to put it together, but it easily replaced the string head. I believe it is a good trimmer for up to a moderate size yard, additional battery would be better. Good value trimmer
by Rosebidtony
2 people found this helpful
This package includes the Power Head and the Straight Shaft Trimmer. The Power Head has the handl...
This package includes the Power Head and the Straight Shaft Trimmer. The Power Head has the handles, place for battery attachment, and 2 position speed selector. The trigger has a safety that you pull back first, before pressing the trigger. The 40V battery (included) seems like it would be heavy, but the 2 hand positions make it very well balanced, and not too heavy. The trimmer seems very well built. The shaft is carbon fiber, with solid metal fittings holding the trimmer head on. It comes with 2 different heads. One head is a standard bump feed head (string trimmer). It comes with 0.08 inch line installed and an extra replacement line and a speed winder for replacing the line. The cutting with can be adjusted between 13” and 15”. The other head is a fixed-line bladed head that holds 2 plastic blades for cutting thick/heavy grass. It also comes with a rapid charger. I was surprised how fast it was - from zero to full charge in less than 10 min. The trimmer is plenty powerful and comfortable to use for a big yard. Plus, the bladed head is nice if you have some heavier, overgrown areas to deal with. The trimmer shaft can detach from the Power Head and you can attach other Ryobi Expand-It tools such as an edger, blower, snow blower, or tiller. Overall, it’s a well-built and versatile tool for a homeowner who does all his/her own yard work.
by UTbadger
3 people found this helpful
I'm not a tall person by any means, I've never used a string trimmer before...it's normally my hu...
I'm not a tall person by any means, I've never used a string trimmer before...it's normally my husband's task/job. When I told him that we were going to be getting this Cordless Ryobi trimmer, he was very pleased. His current trimmer is a pain in the rear to change out the string and it uses regular gas. In other words, it isn't ideal for him. However, right before delivery, my husband had major surgery and cannot lift anything more than 10lbs for the next six weeks...which brings me to the weight of this trimmer...it's twelve pounds with the battery. The battery itself is without a doubt the biggest rechargeable battery I've ever seen! I managed to get the trimmer all snapped together for him to give it a 'once over' as best as he could. We charged up the battery and gave it a few 'vrooms' to test out the power on the trimmer. I tried to give it a few zips in the grass, but the weight combined with the length for me, was a no go. He however says it sounds powerful, it also looks and feels like a high quality trimmer for his upcoming future dates with our landscaping needs.
by DIYgurl
Showing 1-10 of 261 reviews