BLACK+DECKER Cordless String Trimmer/Edger - Adjustable Height - Automatic Feed Spool - 20 V (Battery included)

Article #22465094 Model #LST522 Format20V 12"
BLACK+DECKER Cordless String Trimmer/Edger - Adjustable Height - Automatic Feed Spool - 20 V (Battery included)


Ensure enhanced performance with a BLACK+DECKER cordless trimmer. This trimmer can convert to a wheeled edger for ease and convenience. The cordless string trimmer is ideal for residential lawns or yards of up to 1/2 acre. The 20-volt trimmer and edger comes with a 2-year limited warranty. The string trimmer weighs 5.7 lbs making it easy to wield for longer periods of time.

  • Automatic feed spool (AFS) feeds trimmer line as needed without bumping
  • LBXR2520 battery provides 66% more battery capacity for longer runtime (Compared to LBXR20)
  • 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
  • Part of the 20 V MAX system - 1 system, endless tasks, power for your style

Ecological Attributes

Using an electric tool generates significantly fewer greenhouse gases (GHGs) and air pollutants than a conventional model using gasoline.

Technical specifications

Adjustable Height :Yes Base Warranty Labor(Months) :12 Base Warranty Parts(Months) :12 Battery Included :Yes Battery Recharge Time(hrs) :3.75 Battery Voltage :20-volt max Best Use :Up to 1/2 acre Brushless :No Charger Included :Yes Commercial/Residential :Residential CSA Safety Listing :Yes Cutting Swath(cm) :30.48 Cutting Swath(in) :12 Cutting Swath(mm) :304.8 Edger Capable :Yes ETL Safety Listing :No Fast Charger Included :No Line Feed :Automatic Number of Batteries Included :1 Package Contents :(1) LST522 20V MAX Cordless Trimmer/Edger, (1) LBXR2520 20V MAX Extended Runtime Lithium Battery, (1) Charger, (1) AFS Spool, (1) Guard Recommended Line Diameter(cm) :0.1651 Recommended Line Diameter(in) :0.065 Recommended Line Diameter(mm) :1.651 Series Name :N/A Shaft Length(cm) :101.0412 Shaft Length(in) :40 Shaft Length(mm) :1010.412 Shaft Type :Straight Single or Dual Line Feed :Single Sub-Brand :N/A UL Safety Listing :Yes Warranty :2-year limited Weight(kg) :2.58552 Weight(lbs.) :5.7

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we are having trouble installing the battery pak.

Asked by: Davew6
Ours went on readily, can’t think of any reason for your predicament.  If it was forced in perhaps one or more of the connector pins on either side may have been damaged. If so try to straighten them out.  Good luck 
Answered by: admo
Date published: 2021-06-03

Can I buy just a battery and charger?

Asked by: Gregggie
Can’t really answer that as they came with the trimmer, however I would consider enquiring some stores that sell and repair those machines.
Answered by: admo
Date published: 2021-05-09

Can you wind your own string on or do you have to buy a new replacement spool every time it runs out?

Asked by: hedy49
You can spool your own string if you want however the automatic string advance may not work.
Answered by: Rog4
Date published: 2022-06-16

Why won’t the trimmer cord come out automatically?

Asked by: Anonymous
I am not having this problem but could be to the cord gets tangled in the spool.
Answered by: Pepper18
Date published: 2021-04-19

Need replacement spool. What info do i need to purchase replacement spool

Asked by: Dee D
The replacement spool is Black & Decker AF-100 and contains about 30 ft of line. You can also buy off brand spools online for about 1/4 the cost or if you want to reload the original spool you can buy .065 bulk line up to 300 ft at about 1/10 the cost.
Answered by: GardenRay
Date published: 2023-06-03

How does the battery get charged ? All my other battery tools ( Dewalt and Bosch) have a separate charger. Do I need an additional charger or does the battery charge in place.I was also thinking of purchasing a lawn mower how does this charge.

Asked by: sparkman1
It comes with separate charger
Answered by: VikC
Date published: 2023-08-18

Does it work with a B&D 2.0 ah Li-ion battery

Asked by: Paolo2
As long as the 2.0ah battery is rated for 20volts and if it fits into the battery slot of the trimmer, it will work, however your run time will be shorter.
Answered by: paul62
Date published: 2020-05-17

How many batteries does it come with?

Asked by: crsjr
One 2.5Ah Li-ion battery
Answered by: donduck
Date published: 2022-06-16
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BLACK+DECKER Cordless String Trimmer/Edger - Adjustable Height - Automatic Feed Spool - 20 V (Battery included) is rated 3.8 out of 5 by 170.
Rated 2 out of 5 by from Machine is great - batteries terrible I bought this last year to help with volunteer work at local parks, nature preserves, etc. I am a 70 year old male, short and 145 pounds, so wanted something light. The machine is great. Goes through vegetation like a dream. But the batteries -- and the charging system -- are HORRIBLE! I now have 5 batteries - two of 2.0Ah and 3 of 1.5Ah. They each last only a short while and it takes FOREVER to charge them - basically all afternoon and evening or overnight. If I was just doing around my house, 2-3 batteries would suffice. But for anything more, the battery system is pure junk. (I learned from a friend that his string trimmer (made by a different firm) has batteries that recharge in half an hour. What's going on, B&D? And, why have such small capacity batteries?)
Date published: 2018-08-01
Rated 3 out of 5 by from Good unit with a terrible feed mechanism Overall, I quite the unit, particularly the ease with which it goes from conventional trimmer to edger. And I like being able to interchange batteries with my other B&D gardening tools. But the automatic feed has never worked, not from day one, not with the original spool, not with new spools, not with hand wound spools. And the Dewalt/B&D repair was not able to fix it either, and hinted that "they all do that". So every few minutes, I have to turn it upside down and manually unwind some string, which gets annoying. With a working feed, I'd give the unit 6 stars out of 5. As is, I give it a generous 3 stars.
Date published: 2020-05-24
Rated 4 out of 5 by from Best Trimmer Have used this trimmer all year now on a .35 acre yard. 2 batteries does one 40 foot fence, around the entire house, one side of the garage, around the garden shed, 20 foot side walk, four trees and 20x10 porch. A 3rd battery will take care of a 100sq ft patch of grass I dont like to mow. I load one battery, put another in my pocket and off I go. I dont have to worry about gas or even finagling a cord around, just lock n load and trim. I have only one reason why this isnt 5 starts, while I have yet to change sting spools, every now and then I have to pull the spool and unwrap a bit of string that gets stuck.
Date published: 2019-08-23
Rated 5 out of 5 by from I love, love, love my trimmer! I’ve had this trimmer about a year and a half, and I love it. My husband has some serious health issues and can’t hold up to get all of the work done in our almost one acre yard. I tried to help him before I got this trimmer, but his was too heavy for me to handle. It REALLY hurt my back, and I was digging big holes in the yard because I couldn’t hold the thing up! So he would end up having to do it any way. But since I got this trimmer, I LOVE helping him. It is lightweight and very easy to handle, and the battery recharges quickly if I get really carried away with my trimming! I can’t imagine being without it!!
Date published: 2019-08-22
Rated 5 out of 5 by from Great for what it is This is a great, light weight trimmer and does exactly what it is meant to do. I've read lots of 1 star reviews complaining about the battery lasting only 15-20 Minutes. I was pleasantly surprised that it lasted that long! Just think of running any of your power tools for 15 to 20 minutes couldn't. This 20V lithium battery has as much power as my old B@D, last a little longer and it is lighter. This trimmer is perfect for the person who mows their lawn once a week and then trims it. If you are a person who doesn't trim but a couple of times a year and the grass is getting pretty gnarly then this is not for you, you need a gas powered hog. Know what you are buying, set your expectation to a reasonable level and you will be very happy with this trimmer.
Date published: 2019-05-28
Rated 5 out of 5 by from The trimmer is underrated! Had a couple runs on the trimmer, expecting to have bad battery life, but no! This trimmer has an improved battery (2.5 Ah battery) and lasted for good 20-25 minutes at high power setting. Hope the battery will last long but I am having a lot of fun owning a trimmer for the first time.
Date published: 2017-07-03
Rated 1 out of 5 by from A piece of c**p I have purchased the parts needed. Several times. I'm going to put tape over the lever that feeds the line. I purchased 5 levers one worked. When it ran out of feed and I put another spool in, that was it. They worked for about 5 minutes, then it released ALL the line. Used 3 spools before I looked at the video on how to make it a manual feed. Glad some of you liked it but if you're on a fixed income, I wouldn't suggest you buy this one. This seems to be a problem with alot of them.
Date published: 2018-08-05
Rated 5 out of 5 by from Very Happy With Trimmer After charging the battery over night I used my trimmer this morning. I have a 10,000 sf yard and used the product on the entire outline of the front yard and the back yard. I used the low speed (1) and was able to complete the entire job. I switched to high speed to see how much more I had left and it only lasted another 5 minutes or so. Overall, I would estimate (I did not time) that the low speed setting will provide around 45 minutes of operation. Also, love the front wheel for guiding edge work...made the job go smoothly and quickly. The auto trimming for the cord worked perfectly...a nice feature. Finally, the unit it light weight and well balanced. For the price this is a hard to beat trimmer for individual home use.
Date published: 2018-07-22
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