Model#: BDKNLST400
Condition:
New

What are the different product conditions?

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

Black & Decker LST400 20V MAX Cordless Lithium-Ion High-Performance 12 in. Straight Shaft String Trimmer

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Product Overview

Details

Black & Decker's LST400 offers homeowners a versatile yet powerful tool ideal for basic trimming and lawn maintenance needs. Part of the 20V MAX Series, the LST400 runs off a powerful Lithium-Ion battery for cord free operation, letting you trim where you need to without snagging while still providing the power of a corded trimmer. Featuring dual mode operation for higher performance needs, the LST400 can deliver up to 7,200 RPMs for serious trimming action.
Features:
  • Patented power drive transmission delivers continous high-performance cutting action
  • Automatic Feed Spool (AFS) ensures trimmer line is continuously fed without the need for bumping or manually changing
  • Simple to start and quiet in operation
  • Adjustable cutting height and pivoting handle provides maximum control in both trimming and edging applications
  • Dual mode operationg with power saving for extended run times and high-performance when needed
Includes:
  • 20V MAX Cordless Lithium-Ion High-Performance 12 in. Straight Shaft String Trimmer - LST400
  • 20V MAX 4.0 Ah Lithium-Ion Slide Battery - LB2X4020-OPE
  • Charger
  • 0.065 in. Auto-Feed Trimmer Line Spools - AF-100
  • Cutting Guard
  • Auxiliary Handle

Specifications

Series: 20V MAX
Cordless: Yes
Batteries Included: 1
Battery Amp Hour: 4.0 Ah
Battery Type: Li-Ion
Cutting Width: 12 in.
Drive Shaft Style: Straight
Drive Shaft Type: Fixed Shaft
Handle Type: D-Handle
Line Diameter: 0.065 in.
Line Feed System: Automatic
No-Load Speed (RPM): 5,500 / 7,200
Speed Settings: 2
Voltage: 20V

Recommendations

Reviews

4.6 / 5.0
114 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
74
37
1
2
0
Recommendations
Yes, I would recommend this to a friend (103)
No, I would not recommend this to a friend (1)
Pros
Lightweight (103)
Powerful (71)
VERY GOOD TRIMMER EDGER
LST400 EDGER TRIMMER I LOVE IT.
October 10, 2016
Originally posted at
20 V Max Trimmer/Edger
Love this edger/trimmer. Second battery powered one I have have bought over the years, and this one is better than the last one. Ordered a competitors trimmer edger, but sent it back because of numerous reasons. This B and D trimmer/edger is great. Hope it lasts for many years.
July 2, 2016
Originally posted at
Recommendations
Yes, I would recommend this to a friend
Pros
Powerful
Lightweight
1st died after 10 min, Replacement works well
Cool customer service sent me a replacement after the first one's battery went flag and would not charge after 10min. Lightweight and powerful. Edging works well.

Comes with a small and slow wall charger, not the fast chargers you may see with most power tools.
June 24, 2016
Recommendations
Yes, I would recommend this to a friend
Pros
Lightweight
Sweet Little Performer
You have to use a light touch with this unit, it is not as powerful as a gas unit. Beyond that, this is a great little trimmer (if you buy the Reconditioned)for the money. It *will* chop down tall weeds, if your careful and take it easy.
I'm not sure why there are two speeds. The low speed is not too helpful, except to spare the battery! I recommend you just keep it on the High (2) setting.
It cuts pretty good. Lightweight and easy to use. Feels good in the hand. Especially like how easy it is to flip and trim/edge with this puppy.
The LST400 seems to be well-built and should last a long time.
June 22, 2016
Recommendations
Yes, I would recommend this to a friend
Pros
Lightweight
I would buy this again
So far I have used this twice on one charge and going to keep it going to see how long I can go.
June 10, 2016
Recommendations
Yes, I would recommend this to a friend
Pros
Powerful
Lightweight
Great dual usage tool
Product has great battery life. Life to use. Pull the trigger and go. Easy to switch from
Trimmer to edger.

This is my second one of these units. Lenght of trimmer is great for taller guys and gals.
June 6, 2016
Recommendations
Yes, I would recommend this to a friend
Pros
Powerful
Lightweight
excellent product
Its adjustable love it
June 5, 2016
Recommendations
Yes, I would recommend this to a friend
Pros
Powerful
Lightweight
easy to use
easy-light weight-no gas ect.-no maint.
May 26, 2016
Recommendations
Yes, I would recommend this to a friend
Pros
Powerful
Lightweight
Top notch and affordable
Battery lasts and lasts.
May 22, 2016
Recommendations
Yes, I would recommend this to a friend
Pros
Lightweight
Black and Decker 20V Trimmer
The trimmer is not as powerful as a gas trimmer but much lighter and I do not smell like exhaust when done. I find going back and forth helps with heavy grass.
May 17, 2016

Questions & Answers

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Browse 8 questions Browse 8 questions and 7 answers
How. much does this WEIGH???
Mary Ga Peach on Jun 16, 2015
BEST ANSWER: This item weighs 8.5 lbs.
how much does it weigh
Peggy on Mar 10, 2015
BEST ANSWER: The weight is roughly 8 lbs.
Is the height of the shaft adjustable?
A shopper on May 27, 2017

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 High-Performance 12 in. Straight Shaft String Trimmer - LST400,
20V MAX 4.0 Ah Lithium-Ion Slide Battery - LB2X4020-OPE,
Charger,
0.065 in. Auto-Feed Trimmer Line Spools - AF-100,
Cutting Guard,
Auxiliary Handle
20V MAX Cordless Lithium-Ion High-Performance 12 in. Straight Shaft String Trimmer - LST400R,
20V MAX 4.0 Ah Lithium-Ion Slide Battery - LB2X4020-OPE,
Charger,
0.065 in. Auto-Feed Trimmer Line Spools - AF-100,
Cutting Guard,
Auxiliary Handle
Availability: Out of Stock Out of Stock
Warranty: 2 Year Limited 2 Year

Warranty

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).