Model#: BDKNLST522

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Brand new items;Full manufacturer warranty available
Manufacturer inspected, repaired and tested items; CPO 120 day money back guarantee
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New items with possible minor cosmetic damage; CPO 120 day money back guarantee
Returned items inspected, repaired and tested by CPO technicians; CPO 60 day money back guarantee

Black & Decker LST522 20V MAX 2.5 Ah Cordless Lithium-Ion 12 in. 2-Speed String Trimmer/Edger Kit

New $89.00
Recon $69.99
Sale Price:
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(continental U.S.)
In Stock Delivered by Fri., Nov.15
  • Due to federal regulations, this product can only be shipped within the continental US. Express delivery not available.

Product Overview


Get the power you need with this Black & Decker 20V MAX 2.5 Ah Cordless Lithium-Ion 12 in. 2-Speed String Trimmer/Edger Kit with extended battery capacity. Power through tough overgrowth, or reduce speed while you edge for extra runtime. Either way, there's no bumping required thanks to the Automatic Feed Spool.
  • Automatic Feed Spool (AFS) feeds trimmer line as needed without bumping
  • Extended battery runtime provides 66% more battery capacity
  • 2-speed control lets you boost power or extend runtime
  • PowerDrive Transmission increases torque for more cutting power at the string
  • Easily converts from trimmer to wheeled edger
  • Adjustable height and handle with premium soft grip improves comfort and control
  • 20V MAX Cordless Lithium-Ion 12 in. 2-Speed String Trimmer/Edger - LST522
  • 20V MAX 2.5 Ah Extended Runtime Lithium-Ion Battery - LBXR2520
  • 20V MAX Lithium-Ion Battery Charger
  • AFS Spool
  • Guard
Compliance and Restrictions
warning: Cancer and Reproductive Harm --


Cordless: Yes
Weight: 5.7 lbs.
Batteries Included: 1
Battery Amp Hour: 2 Ah
Battery System: 20V MAX
Battery Type: Li-Ion
Battery Warranty: 2 Year
Blade Style: Dual Action
Bluetooth Compatibility: No
CSA Safety: No
Case Included: No
Charge Time: 10-12 Hours
Charger Included: Yes
ETL Safety: No
Motor Type: Brushed
No-Load Speed (SPM): 5500-7200
Power Source: Cordless
Speed Settings: 2
Starter Type: Electric
UL Safety: No
Voltage: 20V
Wifi compatibility: No



4.6 / 5.0
35 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Yes, I would recommend this to a friend (9)
Easy To Use (9)
Lightweight (7)
Value (5)
Battery Longevity (if applicable) (5)
Not Durable (1)
Best Uses
Frequent Use (4)
Large Projects (2)
Small Projects (2)
Home Repair (1)
Only used once so far. Worked very well and had great lpower
September 16, 2019
Originally posted at
Easy to use and does an excellent job.
This is my second trimmer/edger. I bought one for my grandson (13) to use for his grass cutting job.
September 14, 2019
Originally posted at
New Trimmer
I recently purchased the trimmer from Low's.I found it very quiet & fast.Very nice features.Thanks
September 11, 2019
Originally posted at
Love the low power setting.
This replaced my old 18v unit. I had to keep 2 batteries charged and would barely get all of the yard trimmed. Have used this 3 times so far and it had battery left after doing the whole acre we have.
September 8, 2019
Originally posted at
Very satisfied
Very pleased with this choice. Having no cord to wind and unwind and no gas to mix makes it super convenient to do a quick trim. The vertical edger works great with the handle rotation and wheel. Cuts through grass easily, I have not tried it on weeds. The battery lasts for the 15 min I need it.
September 7, 2019
Originally posted at
easy to use
After snapping guard into place, couldn't get the self tapping screw flush with guard. Either the screw was too long or the hole wasn't deep enough.Had to leave screw about 1/8" exposed.
September 4, 2019
Originally posted at
Great Battery/Single Line Product
I bought this product over two years and it's still going strong. I did have an issue with the charger, but luckily I had another Black&Decker product with similar battery type. Over the years, I have purchased spools of line and refilled (not using the Edger. The product is light and easy to use, including the quick change.
August 27, 2019
Originally posted at
Great features
Had this for a while now and absolutely love it because it’s light weight and so easy to use.
August 27, 2019
Originally posted at
Works well as advertised.
I bought this less than a month ago and I enjoy the ease of handling and that it works as it should seamlessly. Edging is simple and as simple to use as when I cut the grass. Enjoyable product to use.
August 23, 2019
Originally posted at
i like the way the head turns
great product. i use it quite often. weed eats and edges the lawn
August 22, 2019
Originally posted at

Questions & Answers

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Browse 4 questions Browse 4 questions and 5 answers
Is the lst522 compatible with the mod 100 mower deck?
marvin g on Sep 13, 2018
BEST ANSWER: Your question will be best answered by the manufacturer, who can provide you with the accurate information. The number to reach the technician directly is 1-800-544-6986 or online at

New Vs. Reconditioned

What's the difference between New and Factory-Reconditioned?

Factory-Reconditioned products have been returned to the manufacturer and are restored to like-new operating condition; they go through a rigorous testing and inspection process. Plus, they offer a significant savings vs. new.
  • Reconditioned products may have minor cosmetic blemishes or scratches that do not affect item performance.
  • Reconditioned products may not come with all of the consumables the new version comes with (bits, sanding pads/papers, cases, etc.).
  • Both come with a manufacturer warranty and are covered by our Money Back Guarantee; New is 30 days, Reconditioned is 120 days.
Condition: New Factory Reconditioned
Features: Same Same
Specs: Same Same
Includes: 20V MAX Cordless Lithium-Ion 12 in. 2-Speed String Trimmer/Edger - LST522,
20V MAX 2.5 Ah Extended Runtime Lithium-Ion Battery - LBXR2520,
20V MAX Lithium-Ion Battery Charger,
AFS Spool,
20V MAX Cordless Lithium-Ion 12 in. 2-Speed String Trimmer/Edger - LST522R,
20V MAX 2.5 Ah Extended Runtime Lithium-Ion Battery - LBXR2520,
20V MAX Lithium-Ion Battery Charger,
AFS Spool,
Availability: In Stock In Stock
Warranty: 2 Year Manufacturer's limited 2-year warranty.
Price: $89.00 $69.99
You Save: N/A $19.01 (21%)


Warranty Information

Black & Decker Tools and Home Products

Warranted for two (2) years from date of purchase. This warranty does not cover damage resulting from negligent handling, misuse or lack of reasonable maintenance and care. (Proof of purchase maybe required).