Black & Decker Cordless String Trimmer/Edger - Adjustable Height - Automatic Feed Spool - 20-Volt

Article #22465094 Model #LST522 Format20V 12"
Black & Decker Cordless String Trimmer/Edger - Adjustable Height - Automatic Feed Spool - 20-Volt


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 Months Base Warranty Parts(Months) :12 Months Battery Included :Yes Battery Recharge Time(hrs) :3.75 Hours 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 Centimeters Cutting Swath (in) :12 Inches Cutting Swath(mm) :304.8 Millimeters Edger Capable :Yes Etl Safety Listing :No Fast Charger Included :No Line Feed :Automatic Model Description :20 V MAX Lithium 12 in. 2-Speed String Trimmer/Edger 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 Centimeters Recommended Line Diameter (in) :0.065 Inches Recommended Line Diameter(mm) :1.651 Millimeters Series Name :N/A Shaft Length(cm) :101.0412 Centimeters Shaft Length (in) :39.78 Inches Shaft Length(mm) :1010.412 Millimeters 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 Kilograms Weight(lbs.) :5.7 lbs.

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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: 2021-05-18

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: 2020-07-23

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-Volt is rated 4.3 out of 5 by 89.
Rated 4 out of 5 by from Good little trimmer for small yard This thing works great for a small yard. Mine is less than 3000 square feet and the battery easily does everything on high power without using the whole battery. Note that this does have a brush motor so not sure how long it'll last and it does make slightly more noise and vibration, but has plenty of power. I like the stand-off wheel for cutting against fences without beating them up with the string. This thing is minimum 2lbs lighter than the bigger 14-16" competitors, so it's a lot easier to use (and you could always get a bigger battery for medium size yards), but I would recommend looking elsewhere for big yards.
Date published: 2022-03-27
Rated 5 out of 5 by from Hard To Find But Does A Great Job This is my second B&D weed eater/edger. The first lasted for almost ten years. I have extra batteries and line spools so I searched for an exact replacement. I found this one and am very happy with it. I wish the weed eater/edger was available separately instead of having to purchase a kit that includes parts I already have. It would be nice if the description included the part numbers for replacement line spools and batteries. It would also be nice if the description provided line length and diameter as well as battery storage rating in milli-ampres/hour.
Date published: 2022-04-18
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 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 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
Rated 5 out of 5 by from Great value for the price. I had the previous version for 5 years. This trimmer is much lighter and takes the older versions batteries. I'm not a B&D person but this trimmer is very nice. I highly recommend for medium yard work and trimming.
Date published: 2022-05-25
Rated 4 out of 5 by from Light duty trimmer. This unit works great. I was looking for a light duty trimmer and this B& D does a great job. It doesn't damage my wood and metal fence. The batteries are OK but I need three to do my property.
Date published: 2017-08-05
Rated 5 out of 5 by from Great Trimmer for Pricepoint I used a neighbor's last year and after my other one broke down I rushed out to purchase this one - love the power it has for my city property and battery life
Date published: 2018-05-27
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