Model#: BDKRLST300R

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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 or Recon 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

Factory Reconditioned Black & Decker LST300 20V MAX Cordless Lithium-Ion 12 in. Straight Shaft String Trimmer

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  • Factory Reconditioned Black & Decker LST300 20V MAX Cordless Lithium-Ion 12 in. Straight Shaft String Trimmer
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120 DAY
  • Due to federal regulations, this product can only be shipped within the continental US. Express delivery not available.


Buy with confidence! Our Reconditioned items include all necessary parts and are guaranteed to function like new, backed by our 120 Day money back guarantee. Please note however that reconditioned units received from the manufacturer may or may not include accessories shown with this listing.
Black & Decker's LST300R offers homeowners a versatile yet powerful tool ideal for basic trimming and lawn maintenance needs. Part of the 20V Max Series, the LST300 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 LST300R can deliver up to 7,200 RPMs for serious trimming action.
  • 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
  • Dual mode operationg with power saving for extended run times and high-performance when needed
  • 20V MAX Cordless Lithium-Ion 12 in. Straight Shaft String Trimmer - LST300R
  • 20V MAX 2.0 Ah Lithium-Ion Slide Battery - LBXR202-OPE
  • Charger
  • 0.065 in. Auto-Feed Trimmer Line Spools - AF-100
  • Cutting Guard
  • Auxiliary Handle


Series: 20V MAX
Cordless: Yes
Batteries Included: 1
Battery Amp Hours: 2.0 Ah
Battery Type: Li-Ion
Cutting Width: 12 in.
Drive Shaft Style: Straight
Drive Shaft Type: Fixed Shaft
Handle Type: Wrap-Around
Line Diameter: 0.065 in.
Line Feed System: Automatic
No-Load Speed (RPM): 0 - 7,200
Speed Settings: 2
Voltage: 20V



4.5 / 5.0
37 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Yes, I would recommend this to a friend (32)
Lightweight (29)
Powerful (19)
Easy To Use (2)
Value (2)
Loud (1)
Best Uses
Frequent Use (1)
Small Projects (1)
Yes, I would recommend this to a friend
Easy To Use
Best Uses
Small Projects
Good value for moderate size yards
Works fine for trimming and edging smaller yards.
May 6, 2018
2 months ago
Describe Yourself:
Beginner- Casual Do-it-Yourselfer
Yes, I would recommend this to a friend
Easy To Use
Ergonomic Design
Battery Longevity (if applicable)
Best Uses
Frequent Use
Awesome "keep up appearances" grass trimmer
If you strictly need a "keep up appearances" grass trimmer...this is a light, handy and very capable trimmer.

This trimmer is also extremely easy (almost fun) to operate and maintain. If you are not mechanically inclined..this trimmer is maybe just the right one for you. Its adjustable in height too which is a big plus.

I love the ease of just grabbing it and trimming up the grass. No muss no fuss. The battery easily makes it through my 15-20 minute needs of my half acre with no decline in power.

The trimmer does struggle or just can't get done any real weed hacking. That crab grass thats now a foot onto the side walk..? ..this trimmer will struggle to do that. The single string design just doesn't seem to be able to torque enough force.

However, for light jobs and your normal every weekend or so trimming...this is a great trimmer & I highly recommend it.
September 25, 2016
Describe Yourself:
Avid Do-it-Yourselfer

Questions & Answers

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Browse 11 questions Browse 11 questions and 11 answers
how long does battery last after full charge
Mac on Jul 6, 2016
BEST ANSWER: On full charge, this battery should last around 30 to 40 minutes.
Is the recharger included?
Mike on May 26, 2016
BEST ANSWER: Charger is included with kit.
How long does it take to charge the bsttery?
Chip on Apr 29, 2016
BEST ANSWER: A one (1) hour charger comes with this kit.
Can the battery be left on the standard charger (the simple one that comes with the original purchase), plugged in, AFTER the battery has charged. Or is it necessary to keep an eye on it so that it can be removed from the charger immediately after the unit is finished charging?
Michael on Mar 8, 2016
BEST ANSWER: It is not recommended to leave the battery on the charger
What's the difference between LST300 and LST400? Besides the $20 price?
Atlas on Dec 13, 2015
BEST ANSWER: The LST400 has a wheel mounted that is used to assist in edging
I want to replace the spool and head with a easier assembly, however the instruction sheet for the new assembly doesn't conform to the actual weed eater. There is no bolt hole in the outer housing.
Joseph on Sep 8, 2015
BEST ANSWER: For technical assistance, please contact Black & Decker directly at 1-800-729-3878
I have other B/D equipment that use 18V batteries. Will this unit operate on them or does it have to be the 20v
bill on Jun 10, 2015
BEST ANSWER: No,the 20 volt and 18 volt batteries are not compatible.
Does any BD 20v battery work with any 20v drill, trimmer, etc. regardless of the model of the 20v battery?
jim on Jun 10, 2015
BEST ANSWER: No, not every 20V battery will work with every 20V tool. You have to use the same manufacturer battery as the tool and also you need to use either Li-Ion or Ni-Cd, depending on the specification of the tool. Li-Ion and Ni-Cd batteries are not compatible.
What type of replacement line does this trimmer take?
coop on Apr 28, 2015
BEST ANSWER: The Black & Decker AF-100 GRASS HOG Replacement Grass Trimmer Spool .065 in. is the correct line for this model.