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  • BLACK+DECKER 20V Max String Trimmer/Edger, 12-Inch (LSTE525)
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Customer reviews

4.5 out of 5 stars
4.5 out of 5
9,394 global ratings
5 star
71%
4 star
17%
3 star
6%
2 star
3%
1 star
4%
BLACK+DECKER 20V Max String Trimmer/Edger, 12-Inch (LSTE525)

BLACK+DECKER 20V Max String Trimmer/Edger, 12-Inch (LSTE525)

byBLACK+DECKER
Style: 20V String Trimmer KitChange
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Top positive review

All positive reviews›
Brian Harlan
5.0 out of 5 starsDetailed Review: Fantastic all-around
Reviewed in the United States on April 25, 2017
Solid 5-stars on this one. This weed whacker is hands down the best I've ever owned.
Battery/ies DO come with it.
Fairly solid construction - it's got plenty of plastic pieces, but they aren't too flimsy or easily breakable.
Battery power and life are excellent. I've got a small to medium-sized yard with a fence around it, and one battery takes care of it all. Just in case it were to run out, the second battery (which comes with, if you choose that option) is on the charger.
There are two battery "modes" - power and battery life - and they do exactly what they sound like. Power mode gives you more cutting power (at the expense of battery life) and battery life gives you longer cutting time (at the expense of cutting power). I've found that the vast majority of my weekly weed whacking needs are taken care of using the battery life mode. You can quickly and easily switch between the two modes if you need a little more oomph.
Battery runs about 20-30 mins (of actual cutting) on the power saving mode, a bit less on power mode. If you find you need more run time or power, you can always upgrade to higher capacity Black+Decker universal battery (available at hardware stores, Amazon, etc).
As for the string/cut wire, there are easily-replaceable pre-loaded heads that simply click into place. From what I've read in other reviews, there are ways you can string it yourself with whatever string you like. Personally, I'll stick with the pre-wounds - I'm 3 weeks into this product and still using the first pre-loaded cartridge that came with it. Plus you can get a three-pack of replacements on Amazon here for about $9 (product number is AF-100-3ZP).
The product description doesn't say this unit has an auto-feed feature, and says it has a button on the handle that releases more string; the button sure does work, but I've found that the unit seems to be auto-feeding itself most of the time too. I've rarely had to to "tell it" to let out more line. It's been quite convenient and thus far hasn't tangled or anything.
Additionally, the unit can be extended to make it taller/shorter. You just twist the lock, shorten or lengthen as-needed, and twist the lock back into place. Very quick and simple.
There is a "safety" on the handle that you need to hold down with the side of your thumb before you can pull the trigger. It's very conveniently placed and doesn't make it hard to use.
My only minor complaint with this unit is the handle (the one mid-way down, not the one with the trigger). It functions just fine, but it's got "lock" points (to set the angle how you like it) that occasionally come loose. It has to be set to one of these three lock points and sometimes, if you've been using it awhile, it'll vibrate out of the lock and slip to the next one. Takes all of about 2 seconds to set it right again, so it's certainly not a deal breaker, just a little annoying when it happens.
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540 people found this helpful

Top critical review

All critical reviews›
johntarz
3.0 out of 5 starsPoor battery life.
Reviewed in the United States on May 10, 2018
Enjoy the lightness of this string trimmer.
Long lasting cutting cord and easy string advancement
from the pistol grip.
Works on 12" weeds for about 15mins,then 20volt
battery gets slower&slows to stop in 31 minutes.
Other batterys at higher capacity and less expensive
are on Amazon...

I didn't want to whack for extended time anyway.

JB
Read more
86 people found this helpful

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From the United States

Brian Harlan
5.0 out of 5 stars Detailed Review: Fantastic all-around
Reviewed in the United States on April 25, 2017
Style: 20V String Trimmer KitVerified Purchase
Solid 5-stars on this one. This weed whacker is hands down the best I've ever owned.
Battery/ies DO come with it.
Fairly solid construction - it's got plenty of plastic pieces, but they aren't too flimsy or easily breakable.
Battery power and life are excellent. I've got a small to medium-sized yard with a fence around it, and one battery takes care of it all. Just in case it were to run out, the second battery (which comes with, if you choose that option) is on the charger.
There are two battery "modes" - power and battery life - and they do exactly what they sound like. Power mode gives you more cutting power (at the expense of battery life) and battery life gives you longer cutting time (at the expense of cutting power). I've found that the vast majority of my weekly weed whacking needs are taken care of using the battery life mode. You can quickly and easily switch between the two modes if you need a little more oomph.
Battery runs about 20-30 mins (of actual cutting) on the power saving mode, a bit less on power mode. If you find you need more run time or power, you can always upgrade to higher capacity Black+Decker universal battery (available at hardware stores, Amazon, etc).
As for the string/cut wire, there are easily-replaceable pre-loaded heads that simply click into place. From what I've read in other reviews, there are ways you can string it yourself with whatever string you like. Personally, I'll stick with the pre-wounds - I'm 3 weeks into this product and still using the first pre-loaded cartridge that came with it. Plus you can get a three-pack of replacements on Amazon here for about $9 (product number is AF-100-3ZP).
The product description doesn't say this unit has an auto-feed feature, and says it has a button on the handle that releases more string; the button sure does work, but I've found that the unit seems to be auto-feeding itself most of the time too. I've rarely had to to "tell it" to let out more line. It's been quite convenient and thus far hasn't tangled or anything.
Additionally, the unit can be extended to make it taller/shorter. You just twist the lock, shorten or lengthen as-needed, and twist the lock back into place. Very quick and simple.
There is a "safety" on the handle that you need to hold down with the side of your thumb before you can pull the trigger. It's very conveniently placed and doesn't make it hard to use.
My only minor complaint with this unit is the handle (the one mid-way down, not the one with the trigger). It functions just fine, but it's got "lock" points (to set the angle how you like it) that occasionally come loose. It has to be set to one of these three lock points and sometimes, if you've been using it awhile, it'll vibrate out of the lock and slip to the next one. Takes all of about 2 seconds to set it right again, so it's certainly not a deal breaker, just a little annoying when it happens.
540 people found this helpful
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Hedonia
5.0 out of 5 stars Lightweight, yet powerful!
Reviewed in the United States on August 29, 2016
Style: 20V String Trimmer KitVerified Purchase
I am surprisingly pleased by this weed whacker/trimmer! Despite all the positive reviews, I just couldn't shake the notion that a battery-powered tool like this would be underpowered, or run out of batteries quickly.

I am very happy to report that the positive reviews are right! This is VERY powerful and was able to handle very thick weeds, tall overgrown grass, and also delicate grass. I was also impressed by the edging -- it went very quickly!

We already own a gas-powered trimmer, but it took all my arm strength to just hold the thing... I had no muscles left to aim it! This is so lightweight and relatively quiet. I'm thrilled that now I can trim around the garden and walkways when I need to, instead of nagging my husband.

I purchased the set with 2 batteries which I definitely recommend. They last a very decent amount of time (about 15-20 mins for me before it starts slowing down) so having 2 saves it from being a frustrating experience. I also like that the manual specifically and explicitly states that you can leave the battery on the charger with no ill effects, and encourages you to charge it frequently rather than letting it drain down. It's much more convenient.

In summary, two thumbs up!
498 people found this helpful
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Jeep Girl
5.0 out of 5 stars Great for a woman
Reviewed in the United States on October 5, 2019
Style: 20V String Trimmer KitVerified Purchase
And I don’t mean that sexist!! My husband suffered a heart attack and had a quadruple bypass. It will be 6-12 months to recover so that puts all the yard work on me. I’m fit, I workout everyday but I also have Fibromyalgia. I’m able to start our mower fine but our weed whacker, I just can’t pull the cord hard enough. My husband found this on Amazon and it uses the same batteries as one of his cordless drills.
I used it today on the lower speed. I’d have to say it went about 15 minutes per battery. I used both batteries and did my house, across the street and my friends house. Not bad. It’s very lightweight and didn’t cause me any issues. I was able to maneuver it just fine. It didn’t tire me out. I did grass, salal, blackberries, ferns....it handled it all! We have two gas weed whacker for the really heavy duty vegetation. I was so happy that now I will be able to do the yard work while my husband recovers. This is meant for lightweight yard work. If you have thick brush, berries, etc., you’ll need a gas one for the torque. If you’re a woman who just wants to keep the yard tidy, then this will work great!
38 people found this helpful
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HJ
5.0 out of 5 stars Yard work make easier!
Reviewed in the United States on December 2, 2017
Style: 20V String Trimmer KitVerified Purchase
Was hesitant reading the mixed reviews, but after using this for more than half the summer season, my yard care life has been made incredibly easy. I would recommend getting 2 batteries, as for a 1/2 acre yard, I cannot get through the entire thing one 1 (almost but not quite). I am mostly using it to trim around fence, driveway, sidewalks, and garden. The edging feature works nicely. It has plenty of power for regular groomed yard duties. It is super light weight, which I love. It does not use up the spool quickly thanks to the manual feed feature, which I love. All around great tool. After using this I have bought several other in the line, which use the same batteries!
66 people found this helpful
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J S
5.0 out of 5 stars Does what I need it to do.
Reviewed in the United States on May 22, 2020
Style: 20V String Trimmer KitVerified Purchase
Nutshell first: lightweight, easy to use, one battery works for about 20 minutes, not for tougher jobs. This weed eater is what I call a 'city slicker' weed eater ... no offense meant at all. It's great for lighter jobs like trimming and edging grass and softer (? not sure how to word that) weeds. It's not meant for heavier jobs like trimming a mess of mixed weeds on a block-long of ditch in the country.
Longer version: We have 20 acres and maintain about 5 of that as a yard [for 3 houses and a path around a little lake]. My oldest son comes over with his super-expensive, heavy-duty, gas weed eater and does the hard bits [like the ditch], however, I bought this lightweight, battery-operated weed eater to do the easier bits; I figured he's busy enough as it is and if this weed eater works for me, I can just spend a little each day on various areas that are easy.
I was skeptical as to whether or not I'd actually be able to operate it for very long because I have neurological issues that include weakness and some loss of coordination in my right hand/arm. So far I seem to be doing just fine with it. It is surprisingly light, for which I am very thankful.
I saw some complaints about the 'short battery life' ... however 20 minutes is great for me! Sometimes I'm able to do a little more than one battery, so I keep the charged-up second battery in my pocket. For those complaining about the 20-minute battery life, just keep the second one on you; that's 40 minutes of weed eating. If you need to do more than that, you might as well just get a different weed eater, or, do what I do and split your work up into different days.
If my appreciation for this weed eater changes, I will update the review.
19 people found this helpful
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Serenity...
HALL OF FAMETOP 100 REVIEWER
5.0 out of 5 stars ~~My first 'trim' around my yard~~
Reviewed in the United States on May 19, 2019
Style: 20V String Trimmer KitVerified Purchase
First of all, I have always mowed my back lawn but a recent visit to my Optometrist quelled that thought forever. Vision is gone in one eye so no more mowing. I wanted to keep getting some exercise so decided on this Black and Decker trimmer.

Received it on Friday and charged the battery that night..and the first charge was less than 4 hours. I did purchase this unit as it had the two batteries with it. Read the instruction manual carefully and all I had to do was attach the Phillipa screw to the guard. AH, my vision stymied me again...So, Saturday a call to a B & D representative who said he would mail one to me.

As soon as I hung the phone up, I checked for the 5th time and there the screw was ...nice and snug on the cover. Will have an extra Phillips screw on hand, I guess.

I took some pictures of the before (the first two) and one after I was done ( 3) to show the difference. The 4th picture is the box it came in...Another pleasant surprise is that it was assembled except for the cover...

As you can see in the pictures, there is a lot of grass that needs to fill in later this year. Living in Vermont, we had over 100 inches of snow this year and it has only been 10 days since it completely disappeared.

Tried this on the two speeds and the highest one worked better for me today. I also used it for about 15 minutes and my left arm gave out before the battery did...I am in my early 70's so trimming my yard is not a normal activity for me. Shoveling ,,,yes...

Will update this with any news 'flash' that may occur.

Most highly recommended...both for the product itself and also for the most helpful representative on the phone. Excellent so far...
Customer image
Serenity...
5.0 out of 5 stars ~~My first 'trim' around my yard~~
Reviewed in the United States on May 19, 2019
First of all, I have always mowed my back lawn but a recent visit to my Optometrist quelled that thought forever. Vision is gone in one eye so no more mowing. I wanted to keep getting some exercise so decided on this Black and Decker trimmer.

Received it on Friday and charged the battery that night..and the first charge was less than 4 hours. I did purchase this unit as it had the two batteries with it. Read the instruction manual carefully and all I had to do was attach the Phillipa screw to the guard. AH, my vision stymied me again...So, Saturday a call to a B & D representative who said he would mail one to me.

As soon as I hung the phone up, I checked for the 5th time and there the screw was ...nice and snug on the cover. Will have an extra Phillips screw on hand, I guess.

I took some pictures of the before (the first two) and one after I was done ( 3) to show the difference. The 4th picture is the box it came in...Another pleasant surprise is that it was assembled except for the cover...

As you can see in the pictures, there is a lot of grass that needs to fill in later this year. Living in Vermont, we had over 100 inches of snow this year and it has only been 10 days since it completely disappeared.

Tried this on the two speeds and the highest one worked better for me today. I also used it for about 15 minutes and my left arm gave out before the battery did...I am in my early 70's so trimming my yard is not a normal activity for me. Shoveling ,,,yes...

Will update this with any news 'flash' that may occur.

Most highly recommended...both for the product itself and also for the most helpful representative on the phone. Excellent so far...
Images in this review
Customer image Customer image Customer image Customer image
Customer imageCustomer imageCustomer imageCustomer image
26 people found this helpful
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B. Orr
5.0 out of 5 stars Excellent for the average home owner. Lightweight and easy to use
Reviewed in the United States on May 7, 2020
Style: 20V String Trimmer KitVerified Purchase
I like all the extra features from my old black and decker. I’m not sure about the batteries yet as I have two extra from my old one and use them first I like the extra feature of the wheel it seems to leave a better line. I also like the automatic feed feature. I have a little bit over a3 of an acre that I trim so I would say it’s great for people with a half acre or so you may need to buy extra batteries. Also the weed eater shortens for better Storage or somebody who is shorter and it still works. My old one is still working so I hope to get as much life out of this one. I write the date of the purchase on the batteries and the unit so I know how long I’ve had it. Certainly a better option than a corded one or a heavy gas one!
Customer image
B. Orr
5.0 out of 5 stars Excellent for the average home owner. Lightweight and easy to use
Reviewed in the United States on May 7, 2020
I like all the extra features from my old black and decker. I’m not sure about the batteries yet as I have two extra from my old one and use them first I like the extra feature of the wheel it seems to leave a better line. I also like the automatic feed feature. I have a little bit over a3 of an acre that I trim so I would say it’s great for people with a half acre or so you may need to buy extra batteries. Also the weed eater shortens for better Storage or somebody who is shorter and it still works. My old one is still working so I hope to get as much life out of this one. I write the date of the purchase on the batteries and the unit so I know how long I’ve had it. Certainly a better option than a corded one or a heavy gas one!
Images in this review
Customer image Customer image Customer image Customer image
Customer imageCustomer imageCustomer imageCustomer image
18 people found this helpful
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APL
4.0 out of 5 stars Good but not perfect.
Reviewed in the United States on July 23, 2018
Style: 20V String Trimmer KitVerified Purchase
I purchased this trimmer to replace a 13 year-old corded Black&Decker electric corded unit. I bought the model with the two batteries and used it for the first time about a week after receiving it. I paid around $100 for it. First, I have to say that the cordless feature added more convenience and versatility than I expected. I was so used to dragging around the cord I thought it was no bid deal. I am REALLY glad to have it gone. This trimmer is also pretty quiet and I appreciate that. However, I miss the power of the corded trimmer though. My yard has St. Augustine and the corded trimmer could cut through it with ease. This model takes a couple of passes to cut through everything. Finally, the batteries did not really last for very long. I used both batteries to do my relatively small yard and walkway. Between the two of them I got it done, but it was close and I was disappointed they did not last longer. Time will tell how long the line spool lasts. In summary, this is a good, but not perfect product.
94 people found this helpful
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johntarz
3.0 out of 5 stars Poor battery life.
Reviewed in the United States on May 10, 2018
Style: 20V String Trimmer KitVerified Purchase
Enjoy the lightness of this string trimmer.
Long lasting cutting cord and easy string advancement
from the pistol grip.
Works on 12" weeds for about 15mins,then 20volt
battery gets slower&slows to stop in 31 minutes.
Other batterys at higher capacity and less expensive
are on Amazon...

I didn't want to whack for extended time anyway.

JB
86 people found this helpful
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P. Miller
5.0 out of 5 stars This 20 Volt Model is a good upgrade from the 18 Volt String Trimmers.
Reviewed in the United States on May 17, 2022
Style: 20V String Trimmer KitVerified Purchase
I have owned, used and worn out several of the Black and Decker 18 volt string trimmers. I find this one to be an excellent upgrade. The small lightweight 20 volt batteries last noticeably longer than the clunky old 18 volt units. I like the way that the battery shuts off when the charge is too low to be useful. The dual speed motor helps extend battery life, but can whack like crazy when needed. I have a very challenging steep bank in front of my house that I have trimmed for years, and the job was much, much faster and easier than ever before. I highly recommend this trimmer. The battery charger supplied is very nice, and can be used as a battery tender, unlike many of the previous models of 18 volt chargers.
2 people found this helpful
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