
Description
This unique Power+ string trimmer by EGO is first string trimmer with POWERLOAD(TM) technology. This patent pending technology solves for one of the biggest pain points of string trimmers, POWERLOAD technology automatically winds your trimmer. Replacing your string line is as easy as feeding the line into the head and pressing a button! The EGO Power+ 15-in string trimmer features a carbon fiber shaft, stronger than any other string trimmer shaft on the market today. The shaft is equipped with a lifetime warranty so the strength and durability is guaranteed to last forever! This revolutionary trimmer is also built with a high-efficiency brushless motor, bump feed line advance, 0.095-in professional cutting line, and is compatible with all ARC Lithium(TM) batteries to maximize the convenience of cordless and deliver Power Beyond Belief(TM).
- POWERLOAD(TM) head allows you to load your line, push a button and go
- Carbon Fiber Shaft with a Lifetime Warranty
- 15-In cutting swath
- High-efficiency brushless motor
- Variable speed for custom control
- Dual-feed spiral twist 0.095-in line
- Includes 56V 2.5 Ah ARC Lithium(TM) battery and standard charger

Ecological Attributes
Using an electric tool generates significantly fewer greenhouse gases (GHGs) and air pollutants than a conventional model using gasoline.
Product specifications
Adjustable Height
No
Assembly Required
Yes
Attachment Capable
No
Base Warranty Labor(Months)
60
Base Warranty Parts(Months)
60
Battery Amp Hours
2.5
Battery Included
Yes
Battery Recharge Time(hrs)
0.83
Battery Voltage
56-volt
Best Use
1/2 to 1 acre
Brushless
Yes
Charger Included
Yes
Commercial/residential
Residential
Cutting Swath(cm)
38.1
Cutting Swath (in)
15
Cutting Swath(mm)
381.0
Edger Capable
No
Fast Charger Included
No
File/Certification Number
N/A
Line Feed
Bump
Model Description
POWER+ 56-Volt Lithium-ion Cordless Electric 15in String Trimmer with POWERLOAD(TM) and Carbon Fiber Split Shaft with 2.5Ah Battery and Charger
Number Of Batteries Included
1
Package Contents
String trimmer, 2.5Ah battery, and standard charger
Recommended Line Diameter(cm)
0.2413
Recommended Line Diameter (in)
0.095
Recommended Line Diameter(mm)
2.413
Refurbished
No
Safety Listing
UL safety listing
Series Name
POWERLOAD
Shaft Length(cm)
106.68
Shaft Length (in)
42
Shaft Length(mm)
1066.8
Shaft Type
Split
Single Or Dual Line Feed
Dual
Sub-brand
POWER+
Type
Cordless Electric String Trimmer
Warranty
5-year limited
Weight (kg)
3.1752
Weight(lbs.)
7
Line Included
Yes
Frequently bought together
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Do the weights you quote for weed whackers include weight of the battery ??
Hi Tom, good question. The string trimmer weighs 7.28 lbs. The 2.5Ah battery weighs 2.76 lbs. Thank you for your question.
Date published: 2022-07-16
Hello, I own the EGO power mower (self propelled), Just wanted to confirm that the ST1521S trimmer uses the same battery Thank you. Rob.
Hi RobBuler, absolutely! EGO batteries are interchangeable. Thank you for your question.
Date published: 2021-06-06
Will I need a lawn edger accessory? And this kit (trimmer + blower) appears to come with a battery can you please confirm? I have an Ego lawn mower but don't want to swap batteries between too many devices if at all possible. Thanks!
Hello,
Yes the trimmer and blower combo kit does include an EGO battery. Thank you for your inquiry!
Date published: 2021-05-28
just want the pole saw and roto tiller attachment, what do you recommend?
Hello,
This model is not compatible with the multi head attachments. Thank you for your inquiry!
Date published: 2021-05-18
I already have Blower and hedge trimmer, 2 chargers and 2 batteries. I would like to purchase weed trimmer(2021S), but it also comes with battery and charger. Don't really need another charger
Hello,
The products come in kit options that include the battery and charger as well as bare-tool options that are the tool alone. For further assistance please contact our Customer Support line at 1-855-346-5656. Thank you for your inquiry!
Date published: 2021-05-12
EGO Power+ 56 V Cordless Brushless String Trimmer with POWERLOAD Technology - 15-in (Battery & Charger Included) is rated
out of
5 by
3897.
Rated 3 out of
5
by
Ryver from
BE CAREFUL /WARRANTY DROPPED AT 90 DAYS
I have had two trimmers from EGO. My first was in 2016..Loved it unlike my STHIL (that I could cut a tree down with). But would shake for the next 3 days, lol. The problem is that while you may THINK that you have a warranty...they state that it is only for 90 Days on parts, even if you pay extra for an extended warranty. A Company that doesn't stand behind their products isn't worth the time as I now wait for over 2 hours after telling them that I won't stand for this. While waiting on hold I found this from the BBB - https://www.bbb.org/us/il/geneva/profile/electric-tools/ego-power-plus-0654-90009869/complaints
Date published: 2021-09-01
Rated 5 out of
5
by
Johnny Mariakakis from
Best investment I ever made
I have owned three gas powered string trimmers in my life, and being very frustrated with the last one I ventured to purchase this new electric Ego Power string trimmer. I am IN LOVE with this new trimmer! It makes much less noise, starts immediately with a press of a button and no struggling with a choke and pulling a start cord. It's much lighter than my gas trimmer, and has MORE power,
and the auto feed of the string line is a blessing and saves me a lot of time (and profanity). I wasted so much time restringing my old gas trimmers and this Ego Power does the job in SECONDS! I HIGHLY recommend this trimmer.
Date published: 2018-07-10
Rated 5 out of
5
by
Shawver340 from
Better than I expected
I originally purchased this trimmer to maintain weeds around my house. However, I do have an area that I had let become overgrown and had not touched it the past 2 summers. I decided to put the EGO trimmer to the test, but I did not expect it to have enough power to handle this area. The trimmer did not back down from this challenge, I run my weed eaters pretty hard and this trimmer tore through the weeds quickly and effectively. I recommend this trimmer, but I would have to say it is a good idea to get the 5ah battery or have a second battery on hand. I bought the trimmer and leaf blower both with batteries so I can have a spare.
Date published: 2021-05-03
Rated 1 out of
5
by
Patrick from
residential use for 1-1/2 summers in texas
I purchased in 8/2020 and used until October 2020. Then again used from 5/2022 intil October 2021 . Remind you that it was not used every week or every other week, but when i felt like edging or trim alond fence or trees. Should be 5/2021 to October 2021. I have used approximately for total of 9 months and used a dozen timesand the warranty does not cover the head of the trimmer. Ego considers this a disposable item and has only a 90 day warranty on it. So now if i want to continue its use , i have to replace the head because the line keeps gettin jammed and i now spend more time unjamming and refeeding line more than actually using the trimmer? So beware and be prepared to replace the head on this trimmer in a very short time and out of warranty
Date published: 2022-05-01
Rated 3 out of
5
by
Old Lawn Guy from
Great reload feature but . . .
[This review was collected as part of a promotion.] I have all the Ego tools from chain saw to snow blower even had the string trimmer but decided to splurge on the new POWERLOAD Carbon Fiber. Great tool except the engineers who signed off on the variable speed trigger must not use string trimmers much. The new trimmer is not really variable speed like the old model. The new one is basically two speeds - fast and faster with nothing much in between. The thing I liked most about the old one was the slow speed variable control for going around fences and flowers. If I knew the new model was not as capable when it comes to variable speed would probably not have purchased it. Hoping for a fix.
Date published: 2018-03-23
Rated 1 out of
5
by
Clint from
JUNK
I bought this as the combo with the blower. The blower worked very well for what it is. The weed wacker on tbe other habd is the worst ive ever used. I wanted to slam it on the ground within the first five minutes. It will not keep string on it. I tried several times even chabged to string for a new roll. No luck. Youll make it ten feet and the line disapears inside the head. After the ten time in 30 mintes i boxed it back up and took ot back to the store. The trimmer also starts off strong for the first 30 seconds then tne power gets really weak. Maybe i got a bad one but ill never find out. No more EGO for me. Ill try other brands or gas.
Date published: 2021-04-07
Rated 5 out of
5
by
jtchds77 from
Finally, a real solution to trimming and edging
I have had corded electric and gas string trimmers for decades. I have found them all so very frustrating that I sold my last one for dirt cheap and did without for over a year. Finally, I found a trimmer that I actually enjoy using! It does an amazing job, the string doesn't break off easily, the powerload works simply, the engine is quiet and powerful, and the battery lasts for the entire job. I don't smell like gas/oil. I couldn't be happier. I use it to edge and trim a 2/3 acre yard with sidewalks, fencing, mulch beds, and street curbs. I plan to purchase other Ego products and reuse this powerful battery.
Date published: 2021-05-10
Rated 1 out of
5
by
NClawnguy from
Set your expectations low.
Two large issues: the strength of the shaft connection. It's weak. You have to baby this product. #2: The battery does not come close to the performance marketed here. Mine is dead in less than 5 years. It never ran for the promised 40 minutes before it needed a charge. I will say for the 20 minutes it did run between charges, it is every bit as powerful as your average gas-fueled trimmer. So that's in the plus column. Like all string trimmers, loading new string is a huge pain in the butt. The main reason for my low score is the value proposition. The product promises a lot, and charges a premium, but in the end doesn't deliver. That's a mortal sin for a product.
Date published: 2021-08-20