Model # LST136

Internet #203072998

BLACK+DECKER 40-Volt Electric Cordless Straight Shaft String Trimmer


40-Volt Electric Cordless Straight Shaft String Trimmer

  • Features Power Command System to adjust motor power
  • Easily converts from trimmer to edger
  • Highly rated for ease of use (see reviews)
$149.99 /each

Frequently Bought Together

Product Overview

The BLACK+DECKER LST136 String Trimmer features the 40-Volt Lithium Battery System. BLACK + DECKER electric lawn and garden equipment releases zero emissions in your yard, helping to reduce your carbon footprint. The lithium battery cells hold a charge up to 5x longer when idle and have long life year after year compared to HPB18 BLACK + DECKER Ni-Cad battery packs. This trimmer also features BLACK + DECKER exclusive Power Command System which lets the user adjust the motor power up or down for specific cutting needs. The trimmer also features a lightweight design (7.08 lb.), edger conversion and bump-free use.

  • 40-Volt lithium-Ion battery for long runtime
  • Choose max power to tackle thick weeds, max runtime to increase battery life or a combination of both
  • PowerDrive transmission delivers more power from the motor to the cutting string so you can get the job done faster
  • Automatic feed spool ensures continuous work without bumping and having to stop to adjust the spool
  • Quiet and easy to start, delivering great cutting results without the mess and hassles of gas powered trimmers
  • Easily converts from trimmer to edger with a quick turn of the shaft
  • Total weight of the trimmer with the battery installed is 7.08 lbs.
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Warranty / Certifications

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Customer Questions & Answers

Is The Charger Included?

Is the charger included or do iI have to purchase it?
Asked by: Larry
Answered by: mitch
Date published: 2016-11-08

Does this item as priced come with the battery?

Asked by: Wacker
Mine was $128 with battery and charger.
Answered by: Lynn
Date published: 2016-10-20

Why do they call it "cordless" when it uses string

I have had horrible luck with string trimmers in the past. Hoping to find something that uses blades instead of that annoying string. Why are these products called "cordless" when some kind of cord is used to knock down weeds? The category "cordess" raised my hopes, which are now dashed. Every product description I opened uses string, which is a variant of "cord."
Asked by: Alice
If, your name IS Alice, I think you are a troll. If you are NOT a troll, you are clearly ignorant. If you have read the tool description, you know the answer. I'm really surprised that no one else thinks you are "pulling their leg" (aka trolling) with this question. Technically, a string trimmer can also be a pair of scissors or a knife.:)
Answered by: Rusty
Date published: 2016-10-09

is it lightweight i buying for my dad who is 81 and does battery last longtime

Asked by: harley
I am 78 years old and I use mine to do my yard and it takes about 45 minutes. I do admit I rest a minute or so after 20 minutes. Battery is not a problem.
Answered by: bigBHP38
Date published: 2016-09-29
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Customer Reviews

40-Volt Electric Cordless Straight Shaft String Trimmer is rated 4.6 out of 5 by 1021.
Rated 4 out of 5 by from Really good for light duty work This is a good product from someone small like me. It's all plastic, which makes it lightweight. It's not really long. It's strong enough to get weeds growing through pavement & it's a good edger, but not for very tough plants. The battery life lasted for a while. I charged it about a week ago & weeded for 1/2 hour - 45 mins straight, & sporadically for another hour or so. I'm not sure if they all have this feature, but to turn it on, you have to press a button on the side and then pull the trigger. When you let go of the trigger, the machine automatically turns off. The reason I only gave it 4 stars is because it's made of plastic and I'm sure I'll need a new one in a few years
Date published: 2016-09-06
Rated 5 out of 5 by from Why did I wait so long? Bought a whole bunch of B&D 40 volt tools and they all impress me. Compared to my old B&D wired trimmer it is just as powerful and a whole lot lighter in weight. I have a medium sized lawn and have more than a couple of islands to trim around, plus the driveway and the entire perimeter of the house. Not only do I have enough power to do it all but there is still enough juice in the battery to blow off any clippings. The string self loads without any interference. I also bought knock-off replacement strings (3 for $10) and they work fine. I actually enjoy trimming now!
Date published: 2016-09-13
Rated 5 out of 5 by from Exceeds my needs Unit was easy to assemble, and simple to change from edging to trimming. Trim line was more than easy to change. Makes my yard work a treat.
Date published: 2016-09-08
Rated 4 out of 5 by from Very pleased with this purchase. As a woman in her mid-60s and never before having used a trimme... Very pleased with this purchase. As a woman in her mid-60s and never before having used a trimmer, I was pleased at the results. Took a little adapting to holding at the right angle. Also could not initially discern how to make the trimmer start! Had to hold TWO buttons together at the same time in order for it to work. I like the adjustment of the handle as well. Due to purchasing late in the season, only needed to use it twice so have not yet needed to replace the line. Hoping that will be a simple process. Black and Decker makes high quality tools, equipment and implements. I would definitely recommend this!
Date published: 2016-11-12
Rated 4 out of 5 by from Replacement for similar B&D models, but now cordless I like B&D because this is only the third similar trimmer I have purchased in the last 25-30 years. The first two were corded. The trimmer was easy to assemble and being cordless provides better maneuverability and range of use. I'm having a little trouble getting comfortable with the extra safety features. For example, 1) to make the unit run you have to hold down the lock off button and, at the same time, squeeze the trigger; if you release the trigger you have to again go through the same steps to initiate running the unit. 2) You cannot begin recharging the battery immediately when the battery runs out of power. You have to first let the battery cool off.
Date published: 2016-04-12
Rated 5 out of 5 by from Our yard takes 40-50 minutes to edge/trim and this trimmer has made the job much easier. I leave ... Our yard takes 40-50 minutes to edge/trim and this trimmer has made the job much easier. I leave the power setting on 6, so no problems with any areas not getting trimmed. The battery has not been an issue, it has held up through the entire yard. This was a replacement as the first one stopped working after a few uses (felt like the trigger/switch wasn't engaging). No problem with exchange at our local H.D.. So glad to no longer mix fuel and lug the heavy gas trimmer! The self feed line is a bit generous, so keep plenty of extra spools on hand. Would prefer this model have a bump feed, but not a deal breaker.
Date published: 2016-12-13
Rated 5 out of 5 by from Great to finally be cordless This was my final battery powered yard tool to acquire and it didn't disappoint me to finally retire my 50' extension cord. The automatic line feed works well so far and sure beats the heck out of pounding the spool on the ground. The battery saving RPM adjustment really works well. The only downside to going to this battery powered trimmer is the weight gain due to the battery. I look at it as a good tradeoff since I don't have to mess with a cord. The battery matches my B&D lawn mower and hedge trimmer too, so I always have ample batteries to swap out for all three. I highly recommend this trimmer.
Date published: 2016-10-11
Rated 5 out of 5 by from Much Better! I originally owed a Black and Decker trimmer for about 9 years and it gave up after serving me quite well. The equivalent which I also bought at Home Depot had a wheel to guide it. It had a 20 volt battery on it and the power was fine. The problem I had was that dirt and grass kept clogging up the wheel area keeping it from working properly. I returned it and ordered the 40-volt unit on line and it was delivered quite quickly to my home. With no wheel, and much more power I whipped (no pun intended) right through my edges and it is great. I just need to learn a bit more control and I hope that this unit will last as long or longer than the previous one I happily used.
Date published: 2016-05-31
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