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BLACK+DECKER 20V MAX* String Trimmer / Edger, 12-Inch (LSTE523)

4.5 4.5 out of 5 stars 5,947 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in String Trimmers by BLACK+DECKER

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20V String Trimmer Kit

Purchase options and add-ons

Brand BLACK+DECKER
Power Source Battery Powered
Color black
Item Weight 6.3 Pounds
Cutting Width 1200 Inches

About this item

  • Converts from trimmer to wheeled edger; Line diameter 0.065 inch
  • Power drive transmission for increased torque
  • 2 speed control for more power or extended runtime. Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18
  • Easy feed allows you to advance your line with the push of a button with no bumping required
  • Part of the 20 Volt MAX System; 1 system endless tasks. Power for your style
  • Part of the POWERCOMMAND Family of tools EASYFEED, POWERCUT, POWERBOOST helps solve common user frustrations when using outdoor power equipment. Included components: (1) LSTE523 20V MAX Cordless Trimmer/Edger, (1) LB2X3020 20V MAX Extended runtime Lithium Battery, (1) Charger, (1) AFS Spool, (1) Guard

Customer ratings by feature

Weight distribution
4.6 4.6
Maneuverability
4.5 4.5
Light weight
4.5 4.5
Battery life
4.2 4.2

Frequently bought together

$72.83
Get it as soon as Tuesday, Mar 26
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$17.95
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$35.99
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BLACK+DECKER 20V MAX* String Trimmer / Edger, 12-Inch (LSTE523)
BLACK+DECKER 20V MAX* String Trimmer / Edger, 12-Inch (LSTE523)
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Price-33% $72.83
List:$109.00
-26% $88.32
List:$119.00
-12% $69.73
List:$79.00
-22% $84.62
List:$109.00
-14% $86.12
List:$99.99
$51.49
Delivery
Get it as soon as Tuesday, Mar 26
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Customer Ratings
Maneuverability
4.5
4.5
4.6
4.5
4.6
4.5
Light weight
4.5
4.5
4.6
4.5
4.6
4.5
Battery life
4.2
3.8
4.3
4.1
3.9
Easy to use
4.8
4.5
4.4
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
power source
Battery Powered
Battery Powered
Battery Powered
Battery Powered
Battery Powered
Corded Electric
cutting width
1200 inches
13 inches
1300 inches
12 inches
12 inches
13 inches
assembly required
weight
6.3 pounds
7.43 pounds
5.7 pounds
5.7 pounds
5.35 pounds

From the manufacturer

BLACK+DECKER 20V MAX* Lithium Ion Cordless 12-Inch Easy Feed String Trimmer/Edger

BLACK+DECKER 20V MAX* Lithium Ion Cordless 12-Inch Easy Feed String Trimmer/Edger

You can’t beat the convenience of this Cordless String Trimmer/Edger Kit. Easily converting from a string trimmer to a wheeled edger to make yard work a breeze, it’s packed with impressive features like EASYFEED, which advances trimmer line without bumping, and a 2-speed control that lets you prioritize power or runtime, depending on your needs.

BLACK+DECKER 20V MAX* Lithium Ion Cordless Easy Feed String Trimmer/Edger

No more stopping to bump your trimmer/edger on the ground. EASYFEED keeps the line moving so you can keep moving, too.

Features and Benefits of the BLACK+DECKER 20V MAX* Lithium Ion Cordless 12-Inch Easy Feed String Trimmer/Edger

12 in. Cutting Swath

2-Speed Control

2in1 Design

12 in. Cutting Swath

Provides clean, precise cuts for great-looking results.

2-Speed Control

Lets you boost power or increase runtime. Choose the lower speed for jobs that require more time and the higher speed for jobs that need a punch of added power.

2in1 Design

Easily converts for use as a cordless string trimmer or wheeled edge trimmer.

20V MAX* Lithium Ion Powerconnect Interchangeable Cordless Battery System

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Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here. [PDF ]

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BLACK+DECKER 20V MAX* String Trimmer / Edger, 12-Inch (LSTE523)


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Product guides and documents

Product Description

Easy feed string trimmer is designed for trimming areas of overgrowth, & edging along borders, sidewalks, & flower beds. Features power drive transmission which increases torque & 2-speed control to choose between more power or extended run time. Easily converts from trimmer to wheeled edger. Easy feed advances the line with the push of a button, No bumping required. Adjustable height & handle with micro texture Soft grip. Includes: 20V Max extended run time lithium battery, charger, AFS Spool, & guard. This product is Manufactured in China. This product meets customer requirement.

Customer reviews

4.5 out of 5 stars
4.5 out of 5
5,947 global ratings

Customers say

Customers like the ease of use, performance, weight, battery life, and quality of the string trimmer. They mention that its lightweight, works great for general upkeep, and the edging wheel works great. That said, some complain that the battery life isn't great.

AI-generated from the text of customer reviews

707 customers mention588 positive119 negative

Customers like the performance of the string trimmer. They say it's easy to handle, works great for general upkeep, and has a great edging wheel. Customers also say the low speed worked very well against the chain link fence, and the two different speed settings are very nice for cutting different things.

"...the trimmer running you push a button on the top and the head comes to a fast stop, and this action advanced the string line to just about perfect..." Read more

"...It’s easy for me to use & I love the way it handles; the way it rolls for edging; just everything about it, except for the trigger switch!..." Read more

"...We found that the low speed setting was adequate to trim our whole front and rear yard with a single battery charge. Plenty of power...." Read more

"...Overall, the trimmer performed well: reasonably light and easy to handle, better than expected run time (use of both power settings), effective..." Read more

514 customers mention377 positive137 negative

Customers generally like the battery life of the string trimmer. They mention that it can run for hours, has good power with the provided battery, and the larger battery is excellent. They also like the slower speed, which saves the battery. The charging time is a non-issue, and it is compatible with 20V batteries from other Black & Decker tools.

"...The battery lasts a good long time and I trimmed at the higher speed as I wanted to see how quickly it would run down, I was not disappointed, it..." Read more

"I like the compatibility with 20V batteries from other Black & Decker tools. It trims smaller grass and weeds well...." Read more

"...3- The battery is just powerfull, after full charge I use it for my front and back yards, and it still has juice left...." Read more

"...As such, long term durability of the trimmer or overall battery life cannot be assessed...." Read more

464 customers mention438 positive26 negative

Customers appreciate the weight of the string trimmer. They mention that it is maneuverable and easy to use around the yard. Some say that the battery life is good and that it's good at cutting.

"...Lightweight and ergonomic, although the " edger" mode can be a pain." Read more

"...Lacks the punch to tame large weeds. It is lightweight and easy to maneuver. The string guard seems a little flimsy...." Read more

"This is a great trimmer for home use. It's light, can do both trimming and edging, and has improved significantly over the previous model...." Read more

"...Overall, the trimmer performed well: reasonably light and easy to handle, better than expected run time (use of both power settings), effective..." Read more

428 customers mention380 positive48 negative

Customers find the string trimmer easy to use. They mention it's lightweight, easy to start and stop, and to release the line by just the push of a button. It's easy to handle, and does a great job. It is not stressful or hard work, and it'll be ready to use out of the box. The charger is compact and just clips onto the battery.

"...This makes the 500 series easier to use and more reliable...." Read more

"...It’s easy for me to use & I love the way it handles; the way it rolls for edging; just everything about it..." Read more

"Excellent tool, easy to use. I use it for my lawn edging and to get rid of weeds, it makes weeds vanish in a click...." Read more

"...Item is brand new and took about 5 minutes to setup and get ready for use. The single Li-Ion battery is rated at 20V @ 3Ah...." Read more

409 customers mention309 positive100 negative

Customers like the quality of the string trimmer. They say it's a great tool for doing trimming, edging, and light yard work. Customers also say it has stood up to heat, grass clippings, and flying. They find it to be sturdy and do an excellent job around trees, flower beds, the house, fire pit, and a playground. Overall, customers find it a good trimmer for home use and praised it for being fairly versatile.

"Handy trimmer for household use ( not intended for heavy bush clearing ) Please note- the LSTE523 indicates the push button swing advance, not the "..." Read more

"This is a great trimmer for home use. It's light, can do both trimming and edging, and has improved significantly over the previous model...." Read more

"Excellent tool, easy to use. I use it for my lawn edging and to get rid of weeds, it makes weeds vanish in a click...." Read more

"...It trims smaller grass and weeds well. Lacks the punch to tame large weeds. It is lightweight and easy to maneuver...." Read more

186 customers mention134 positive52 negative

Customers like the power of the string trimmer. They say that the battery works well, handles all their trimming needs with suitable power, and is powerful enough to edge grass adequately. The low setting is great for skimming weeds, and the light and easy to handle. The product has a longer battery life.

"...how quickly it would run down, I was not disappointed, it ran the job with power to spare...." Read more

"...Plenty of power...." Read more

"...May take you a little longer to weed eat due to lack of power forcing you to go slower...." Read more

"...performed well: reasonably light and easy to handle, better than expected run time (use of both power settings), effective cutting of most grasses..." Read more

148 customers mention134 positive14 negative

Customers are satisfied with the value of the string trimmer. They mention that the push button line feed is worth the price, and the refills are cheap to buy. Overall, customers find the product to be well worth getting.

"...4- The Price, I just LOVE IT! less than $90 for a tool that is worth everey penny." Read more

"...Feed button location, it’s a decent piece of equipment and it’s a great price." Read more

"...I am still on the initial spool and refills are cheap to buy...." Read more

"Delivery was early. This product is a good value for the price. This is a good trimmer for light yard work in an average size yard." Read more

276 customers mention102 positive174 negative

Customers have mixed opinions about the durability of the string trimmer. Some mention that it's fairly well made and should hold up for what they need, while others say that it isn't durable at all and has already broken. The battery takes forever to charge, even brand new, and the string guard seems a little flimsy. Overall, the product does what it says it will do, but it may not last long enough to complete a small back yard.

"...It is lightweight and easy to maneuver. The string guard seems a little flimsy. Overall, it does what it says it will do...." Read more

"...The trimmer is a quality product from a great company, Black and Decker." Read more

"...trimmer is fine but when the trigger switch goes bad it becomes an unusable item. With the warranty you’ll get one new one." Read more

"...angle grab handle doesn't lock into position very securely and feels a bit flimsy.Overall we are very satisfied with this device...." Read more

Works well for home use
5 Stars
Works well for home use
This is a great trimmer for home use. It's light, can do both trimming and edging, and has improved significantly over the previous model.The cordless concept gives you a lot of freedom. I have a corded edger with a blade and it's great for the really challenging parts of the lawn, but nothing beats the convenience of this cordless model.How well does it trim?For a home with a front and back yard (probably around 4000 sq ft lawn space) I found the 3Ah battery just enough to cover both yards if using a judicious mix of the two power settings. The low power setting is fine for most of the trimming and even some of the edging, but I use the higher power setting for thicker growth. This is for St. Augustine grass common in the south. If you have hardier substances to cut or if you need to use the higher power setting more than I do you may have to charge in the middle of the job and it does take a while to charge an empty battery. You can also buy additional compatible batteries on the Black and Decker 20v systems on Amazon which I would recommend for those with larger/tougher jobs.Which one is for you?The biggest differences with this model series are the batteries they come with and the string feed mechanism. I've included a chart to help understand the differences between the models. Some thoughts:- The basic 522 and 523 appear to be physically identical trimmers except for the string feed. The 522's is automatic, the 523's is manual. My old 400 had an automatic feed that worked but there were times I would have liked to have been able to feed it when the automatic didn't trigger.- The 523 appears to be sold in two options (at least it was when I bought mine). One option comes with a 3Ah battery, the other comes with a 1.5Ah battery. The bigger battery is heavier but lasts longer. If you have a smaller lawn, or you want the lightest weight, maybe the smaller battery unit is better for you. Although the unit is not heavy, you may feel it after using it for forty minutes. Again, if battery life is an issue, Amazon sells additional batteries separately, and they're compatible with the whole line of Black and Decker devices including cutters, drills, and more.- The 525 seems to be identical to the 523 but comes with a choice of either a 3Ah battery or two 1.5Ah batteries.- The entire 500 series (522, 523, etc) are a big improvement over the 400 series due to modifications to the trimmer/edger conversion mechanism and also the change of the auxiliary handle's friction clamp to instead a fixed pivot point on the handle assembly. This makes the 500 series easier to use and more reliable.6-Jun-2019 update: Saw a bunch of negative reviews from people that had issues with quality control on their units. I don't doubt them. I had issues with the previous generation of this unit. All I can say is that even with issues, I got four years out of the previous model and this one so far has worked fine. Stories of the awful (and probably outsourced) support from Black and Decker are disappointing, but that's the price of dealing with some corporations.
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Top reviews from the United States

Reviewed in the United States on March 7, 2024
Style: 20V String Trimmer KitVerified Purchase
Reviewed in the United States on November 26, 2023
Style: 20V String Trimmer KitVerified Purchase
Reviewed in the United States on October 4, 2023
Style: 20V String Trimmer KitVerified Purchase
Reviewed in the United States on August 11, 2018
Style: 20V String Trimmer KitVerified Purchase
Customer image
5.0 out of 5 stars Works well for home use
Reviewed in the United States on August 11, 2018
This is a great trimmer for home use. It's light, can do both trimming and edging, and has improved significantly over the previous model.

The cordless concept gives you a lot of freedom. I have a corded edger with a blade and it's great for the really challenging parts of the lawn, but nothing beats the convenience of this cordless model.

How well does it trim?
For a home with a front and back yard (probably around 4000 sq ft lawn space) I found the 3Ah battery just enough to cover both yards if using a judicious mix of the two power settings. The low power setting is fine for most of the trimming and even some of the edging, but I use the higher power setting for thicker growth. This is for St. Augustine grass common in the south. If you have hardier substances to cut or if you need to use the higher power setting more than I do you may have to charge in the middle of the job and it does take a while to charge an empty battery. You can also buy additional compatible batteries on the Black and Decker 20v systems on Amazon which I would recommend for those with larger/tougher jobs.

Which one is for you?
The biggest differences with this model series are the batteries they come with and the string feed mechanism. I've included a chart to help understand the differences between the models. Some thoughts:
- The basic 522 and 523 appear to be physically identical trimmers except for the string feed. The 522's is automatic, the 523's is manual. My old 400 had an automatic feed that worked but there were times I would have liked to have been able to feed it when the automatic didn't trigger.
- The 523 appears to be sold in two options (at least it was when I bought mine). One option comes with a 3Ah battery, the other comes with a 1.5Ah battery. The bigger battery is heavier but lasts longer. If you have a smaller lawn, or you want the lightest weight, maybe the smaller battery unit is better for you. Although the unit is not heavy, you may feel it after using it for forty minutes. Again, if battery life is an issue, Amazon sells additional batteries separately, and they're compatible with the whole line of Black and Decker devices including cutters, drills, and more.
- The 525 seems to be identical to the 523 but comes with a choice of either a 3Ah battery or two 1.5Ah batteries.
- The entire 500 series (522, 523, etc) are a big improvement over the 400 series due to modifications to the trimmer/edger conversion mechanism and also the change of the auxiliary handle's friction clamp to instead a fixed pivot point on the handle assembly. This makes the 500 series easier to use and more reliable.

6-Jun-2019 update: Saw a bunch of negative reviews from people that had issues with quality control on their units. I don't doubt them. I had issues with the previous generation of this unit. All I can say is that even with issues, I got four years out of the previous model and this one so far has worked fine. Stories of the awful (and probably outsourced) support from Black and Decker are disappointing, but that's the price of dealing with some corporations.
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120 people found this helpful
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Reviewed in the United States on November 9, 2023
Style: 20V String Trimmer KitVerified Purchase
3 people found this helpful
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Reviewed in the United States on September 22, 2023
Style: 20V String Trimmer KitVerified Purchase

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wolverine
5.0 out of 5 stars I like it
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5.0 out of 5 stars Best grass/weed trimmer
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John
5.0 out of 5 stars Ease of use.
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