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BLACK+DECKER LST420 20-volt Max Lithium High Performance Trimmer and Edger, 12-Inch
BLACK+DECKER LST420 20-volt Max Lithium High Performance Trimmer and Edger, 12-Inch
Manufacturer : BLACK+DECKER
Amazon Price : $99.00
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Avg. Customer Rating:4.5 of 5.0
Availability: Usually ships in 24 hours Ships from and sold by Amazon.com
Product Description
Black and Decker LST420 12" 20-volt Max Lithium High Performance Trimmer/Edger
Product Details
  • Amazon Sales Rank: #1023 in Lawn & Patio
  • Brand: BLACK+DECKER
  • Model: LST420
  • Dimensions: 43.00" h x 4.88" w x 7.25" l, 8.20 pounds
  • Product Features
  • The PowerDrive Transmission delivers more power from the motor to the cutting string so you can get the job done faster
  • Runtime Extension Technology with dual mode accelerator switch for high performance or longer run time
  • The Automatic Feed Spool ensures continuous work without bumping
  • Includes (2) 2.0 Amp hour lithium battery packs- each battery pack delivers 33% more capacity than the LBXR20 battery pack
  • Part of the 20V MAX System - A System that Demands Attention. 1 Battery fits multiple tools
  • Customer Reviews

    Most helpful customer reviews

    293 of 299 people found the following review helpful.
    4Nice cordless weedeater (and combo edger). I would have given it 5 stars if it would have run an hour on the two 20V batteries
    By Brian
    This Black & Decker LST420 trimmer / edger is part of the 20V Max tool system that uses the same line of rechargeable 20 volt batteries. It is a nice cordless trimmer with 2 power settings. The trimmer can be rotated so that it performs as an edger (which allows the orange wheel at the bottom of the trimmer to be rolled along a flat surface). As an edger it seemed to be adequate, although I admit that I rarely do edging. It was really good not having to drag an extension cord all over the yard. The trimmer speed can be set at 1 (for longer battery usage) or 2 (for more power). The "2" setting feels closer to my 110 volt corded weedeater, although I found that the "1" setting was adequate for most of the weed-eating that I was doing. The first time I used the trimmer I got about 23 minutes on one fully charged battery using the "1" setting about 95 percent of the time. (My second battery was charging). About 8 or 10 minutes of that time was cutting some grass and weeds about a foot tall. It didn't get bogged down even on the "1" setting, which is good. The box states in large letters, "1 HOUR RUNTIME" so I gave it 4 stars since I didn't believe the other battery would give me about 37 minutes. Next time if I can get about an hour on both batteries I'll raise my rating to 5 stars.

    Assembly: Assembly was real easy and consisted of pushing the plastic guard into a slot (1 screw) and attaching the D shaped handle (1 bolt).

    Adjustments: The D shaped handle can be moved up and down the shaft, but the angle cannot be adjusted. The telescopic shaft can be shortened or lengthened. The distance between the center of the motor at the bottom of the shaft (center of the Black & Decker label on the motor) to the top of the handle can be adjusted from 36 inches to 49 inches. I'm 6 foot tall and it feels best fully extended for me.

    Batteries and cutting line: Two 20 volt LBXR2020 Type 4 40 Wh batteries are included. The manual indicates that it takes five hours to fully charge one battery. The following LI-ION batteries can also be used: LBX20, LBXR20, LB2X4020. Use only 0.065 inch (1.65 mm) diameter round nylon monofilament line. B&D recommends the AF-100 spool: Black & Decker AF-100 String Trimmer Replacement Spool with 30 Feet of .065-Inch Line.

    Warranty: 2 years for home use.

    The LST420 works so good that my corded weedeater may just hang on the garage wall all summer long.

    176 of 185 people found the following review helpful.
    5Not as powerful as the 40 volt but still gets the job done
    By AmazonJavaJunki
    I recently purchased a B&D 40 volt lithium trimmer and then was offered this via the Vine program. Since we have a 2nd property, I jumped at the opportunity to try this one out. As might be expected, it isn't quite as powerful as the 40 volt version but otherwise, is very similar in function, weight and appearance. I should also add, I've been putting the 40 volt to the paces and have been impressed by what it manages to handle. My first day out, I used it to trim everything between a bunch of fruit trees in a lot that was overgrown, thick and full of weeds. It cut grass, weeds and even underbrush like a pro. Amazing!

    So, as I mentioned, this is not quite as powerful but assuming you aren't using it to take down swamp growth but rather an average lawn, it is more than sufficient. The charge takes about an hour (max) and seems to last 30 to 45 minutes. The string does not require a bump which is nice and last through the entire trim without worry.

    Weight is not problematic although it is not skimpy like some electric versions. The battery is interchangeable with other B&D products of the same voltage (a very nice touch). The entire machine is adjustable up/down to fit short or tall persons. There is a guard on both the front and back to protect self and plants.

    Overall - great tool. Can't believe we waited this long to try out cordless trimmers but will NEVER go back now that we have!

    107 of 116 people found the following review helpful.
    5Overall very satisfied
    By Edgar
    It's a great trimmer for people such as I who have a somewhat small lawn . It's power is good for it being one string in oppose to other two string edgers. If you're looking into have a good electric edger and not spending more this one is for you. I also recommend to use number 1 power . There's a option of choosing 1 or 2 , 2 is of course powerful but drains the battery. I just cut my edges with the 2 and my battery drained just when I was about done . With the 1 set on I never drained my battery .

    See all 1269 customer reviews...
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