40V EXPAND-IT™ Attachment Capable String Trimmer WITH 4AH BATTERY & CHARGER

Model: #RY40250

4.7 | 3132 Reviews
  • More power, more run time, and lighter weight than previous model
  • EXPAND-IT™ Attachment Capability for ultimate versatility
  • REEL-EASY+™ Bump Head for reloads in under 60 seconds

GAS-LIKE POWER™ With Cordless Convenience


Ryobi five year warranty
*Tool Warranty

All RYOBI 40V tools are covered by a 5-year limited warranty.

Ryobi three year battery warranty logo
* Battery Warranty

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

The RYOBI 40V System features over 50 products, providing versatility to get the job done.

View our current promotions for new product releases and the latest RYOBI savings!

Ryobi Help+

Your one stop destination for tips & techniques, manuals, troubleshooting, FAQs and more!



40V 4.0 Ah Battery
Cut Swatch
Adjustable 13" - 15"
Line Advancement
Bump Feed Head
Line Size
Variable Speed
5 year tool warranty and 3 year battery warranty
11.3 lbs.



40V EXPAND-IT™ Attachment Capable String Trimmer WITH 4AH BATTERY & CHARGER
40V EXPAND-IT™ Attachment Capable String Trimmer WITH 4AH BATTERY & CHARGER is rated 4.7 out of 5 by 3127.
Rated 5 out of 5 by from Amazingly Powerful!! This is my second battery powered string trimmer. My first was a Worx GT 20 volt and it was a bit weak. I am used to a gas powered trimmer, so I was missing the power. My gas powered Craftsman trimmer finally gave up, so I decided to give this battery powered trimmer a try. I am totally amazed at the cutting power of this trimmer. It actually cut better than the craftsman trimmer. The only thing this trimmer does not do that the gas trimmer did is make a lot of noise and fumes! It is nice just to pull the trigger and go without yanking on a cord and hoping the machine will start! I look forward to trying some of the attachments.
Date published: 2019-04-19
Rated 5 out of 5 by from 40V Battery String Trimmer Worth It! We wanted to stay away from gas if possible for our yard maintenance and this 40V trimmer is part of a complete electric yard maintenance system by Ryobi. The yard trimmer was extremely easy to get going. The power is strong and enough for most weekend warriors. The battery easily lasted through trimming my front yard and is powerful enough to take down some aggressive weeds. Replacing and adjusting the string is easy enough but I recommend tracking down a video on youtube if your not sure how to change it the first time. Next we are getting the 40V lawn mower and then the chainsaw to have more batteries if needed. So far not an issue.
Date published: 2019-03-18
Rated 3 out of 5 by from It's right handed? I bought this as a replacement for my previous Ryobi trimmer that died. While it performs as expected, what I didn't expect was it to come equipped with an angled grip that makes using this thing left handed awkward and uncomfortable. Sure... first thought was to simply turn the thing around, but my right handed wife also will use this, so to keep it comfortable for her, I left it. My previous model had a straight forward non-angled handle, but of course I had already tossed it. So Ryobi, I have always liked your products, but this one has a serious design flaw for lefties. You might want to give your right handed engineers a talking too.
Date published: 2020-09-18
Rated 5 out of 5 by from Strong and nimble Works well, easy to maneuvre, long enough for a tall guy, and it doesn't automatically feed the cord like the other crappy string trimmer I have.
Date published: 2021-06-16
Rated 4 out of 5 by from Incredible power, but poor design The power on this trimmer is incredible. It is gas like just like the box says. Good battery life. Easy installation. Instructions could be way more simplified instead of having three separate owners manuals. The problem with this is the design. The black handle awkwardly mounts and at an angle for some reason, and, most importantly, you can’t swivel the trimmer head 180 degrees so that you can edge with it also. That makes no sense other than to force people to spend another $75-$80 to buy the edger attachment. While you could still flip the whole unit over and use it as an edger, but you don’t get to use the handle and it’s awkward.
Date published: 2019-07-18
Rated 4 out of 5 by from Used it twice so far. It worked well both times. I have about a 1/4 acre lot and am able to wack around the entire house, a fence on 2 sides of the lot and edge the driveway and along the street (edger attachment from a broken troy-bilt) on a single charge. It cuts it close since the battery is on the last bar, but gets the job done. I am anxious to see how long the battery will stay in this condition. I really haven't had it long enough to say much about the individual ratings below. I like not having to use gas because that's extra work - getting gas, mixing it, using it before it goes bad. But the battery is expensive to replace so we'll see how long it lasts.
Date published: 2019-05-01
Rated 5 out of 5 by from Excellent Tool I this about a month ago with some reservations because of the negative comments on the power being too hot on your forearm when using the tool. Having used it now I can see why folks may have made those comments. If you rest your arm on above the power source it does get hot. However I found the tool to be perfectly balanced for me such that I don't rest my forearm above the power source so it's no issue for me. This tool works really well. It has plenty of power and easily does my yard on a single charge. In fact I actually use the same battery to blow my yard as well without recharging. I'm very happy with this purchase.
Date published: 2020-03-09
Rated 5 out of 5 by from Awesome weed eater at a great price! So I chose to go with a battery powered weed eater as I move frequently with the military. After looking at reviews and videos on youtube I decided to hit up Home Depot and pick this guy up. This weed eater is awesome. The power is perfect and the battery lasts forever. I have used it three times now and the battery still has a charge! I would highly recommend this product to anyone. The string is super easy to load and was another reason I chose this one. My wife will have no problem loading the string while I'm away for periods of time. I havn't experienced it yet but I heard a few associates at home depot say that their customer service is outstanding.
Date published: 2019-06-30
  • y_2021, m_6, d_17, h_18
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.17
  • cp_1, bvpage1
  • co_hasreviews, tv_152, tr_2975
  • loc_en_US, sid_307663070, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_ryobioutdoortools