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BLACK+DECKER 20V MAX Cordless String Trimmer Review

Rated 4 out of 5 based on 1 customer rating
(8698 customer reviews)

Original price was: $99.99.Current price is: $76.88.

  • 2-in-1 design functions as both a cordless trimmer and edger
  • Lightweight and easy to handle with adjustable height handles
  • Automatic feed spool technology eliminates bumping for line advancement
  • Powerdrive transmission enhances power delivery for faster cutting
  • Compatible with BLACK+DECKER 20V MAX Power Connect System for versatile battery use
  • One 20V Lithium battery included, providing 33% more runtime
  • Runtime extension technology ensures prolonged operation
  • Compact dimensions: 8.5″L x 4.8″W, and weighs only 5.7 pounds
    SKU: B00HH4K4HQ Category: Brand:
    Last updated on January 25, 2025 2:39 am Details

    Maintaining a pristine lawn and garden can often feel like a daunting task, but with the BLACK+DECKER 20V MAX Cordless String Trimmer (model LST300), it doesn’t have to be. This versatile tool not only offers the convenience of cordless operation but also combines two functionalities—trimming and edging—into one efficient device. Let’s explore what makes this trimmer a must-have for any yard enthusiast.

    2-in-1 Functionality

    The BLACK+DECKER LST300 features a seamless transition between a string trimmer and a wheeled edger. This dual functionality allows you to easily cut along borders, sidewalks, and flower beds, making it perfect for tidying up after mowing. The ability to switch between trimming and edging without the need for additional tools is a significant advantage, saving you time and effort in your lawn care routine.

    Ease of Use

    One of the standout features of this trimmer is its lightweight design, weighing in at just 5.7 pounds. It’s easy to handle, even for extended periods. The adjustable height handles ensure that users of all sizes can find a comfortable grip, reducing strain during operation. Additionally, the pivoting handle allows for better maneuverability, making it simple to navigate around obstacles in your yard.

    Smart Line Feed Technology

    The BLACK+DECKER LST300 utilizes automatic spool feed technology, which means you won’t have to deal with the hassle of bumping to release more line. This feature automatically feeds more line as needed, allowing you to focus on getting the job done without interruptions. This innovation not only streamlines the trimming process but also enhances overall control.

    Power and Performance

    Equipped with Powerdrive transmission, this trimmer delivers more power straight from the motor to the cutting string, allowing you to complete tasks more swiftly. The 20V Lithium-ion battery included with the trimmer provides an impressive 33 percent more run time compared to standard batteries, making it ideal for those larger jobs. The runtime extension technology ensures that you can tackle your yard without frequent interruptions for recharging.

    Part of a Versatile System

    The BLACK+DECKER LST300 is part of the 20V MAX Power Connect System, which means that the battery is interchangeable with other BLACK+DECKER tools. This compatibility is a game-changer for those who already own BLACK+DECKER products, as it allows for easy battery switching between tasks, enhancing the overall efficiency of your gardening arsenal.

    Conclusion

    In summary, the BLACK+DECKER 20V MAX Cordless String Trimmer is a powerful, user-friendly tool that can make lawn care feel effortless. Its 2-in-1 functionality, lightweight design, smart line feed technology, and robust battery life come together to provide a trimming experience that is both efficient and enjoyable. Whether you’re a seasoned gardener or just looking to tidy up your outdoor space, this trimmer is certainly worth considering for your lawn care needs.

    Brand

    BLACK+DECKER

    Power Source

    Battery Powered

    Color

    White

    Item Weight

    5.7 pounds

    Cutting Width

    12 Inches

    Product Dimensions

    8.5"L x 4.8"W

    Assembly Required

    Yes

    Global Trade Identification Number

    00885911328746

    UPC

    885911328746

    Department

    Unisex-Adult

    Manufacturer

    Black & Decker Outdoor

    Country of Origin

    China

    Item model number

    LST300

    Batteries

    1 Lithium Ion batteries required. (included)

    Is Discontinued By Manufacturer

    No

    8698 reviews for BLACK+DECKER 20V MAX Cordless String Trimmer Review

    1. Rated 3 out of 5

      KatyR

      This tool is compact and lightweight. It takes about 5 hours to fully charge the battery, but during the first use, it only lasted 20 minutes. The second use was just over 30 minutes, so I’m hoping for some improvement. Make sure to order a replacement nylon, as the one included is quite short. Also, keep in mind that it’s imported from the US, so you’ll need a step-down converter, which adds to the overall cost!

    2. Rated 5 out of 5

      Gigi

      This is a fantastic and convenient tool. A full battery charge lasts around thirty minutes of weed-whacking, which is enough for most small yards. It cuts efficiently, operates quietly, produces no unpleasant petroleum fumes, and is easy to handle.

    3. Rated 3 out of 5

      RT

      Pros:

      • Easy to assemble
      • Gets the job done
      • Includes line
      • Comes with a battery (though it’s only 2Ah)

      Cons:

      • The included battery is pretty much useless due to its short runtime (upgraded to a 5Ah)
      • The safety button you have to press before pulling the trigger is annoying and pinches my skin; it feels unnecessary and I’ll likely disable it.
      • The handle mechanism is weaker compared to the previous model, causing it to shift positions during use.
      • The old model allowed for a quick twist to switch to edger mode, while this new version requires unscrewing a knurled lock, rotating the shaft, and then tightening it again—definitely less convenient.

      It’s just a weed wacker, so it’s not a total loss, but I feel B&D has regressed in design and ease of use. I prefer the old model, which lasted over a decade before the motor burned out. I’ll keep this one and use it, but I won’t enjoy it as much as the previous version; it’s more about tolerating it now.

    4. Rated 4 out of 5

      BenWolf

      This trimmer/edger is an excellent addition to my collection of yard tools. I appreciate its lightweight design while still being durable and sturdy. The ease of unlocking, rotating, and twisting to switch between trimming and edging is both efficient and convenient. It’s surprisingly quiet for a tool of this kind and handles low to moderate yard work well. I did encounter a minor issue with it cutting too deeply into my grass, but I believe it’s just a matter of adjusting my technique when edging. Overall, I recommend this tool for its value.

    5. Rated 5 out of 5

      JMoss

      As a 70-year-old woman standing at 5’2”, I’m not a fan of manual labor. I live in a rural area overrun by tough, aggressive weeds that seem determined to take over. These aren’t your average suburban lawn weeds; they’re like Viking invaders, ready to grab your foot and pull you into the underbrush.

      Faced with this botanical battle, I needed a reliable weapon, and I had my doubts about this battery-powered weed eater. I feared it might be more of a toy than a tool. However, I was pleasantly surprised—it’s a formidable machine.

      I’ve tried various weed eaters in the past, including heavy, gas-powered models that were loud, cumbersome, and still fell short against the relentless weeds. After some research, I decided to give this one a chance, and I’m glad I did!

      First off, it’s incredibly lightweight. I can use it for an hour without straining myself, and the adjustable shaft and handle make it just right for my height and shorter arms. The self-feeding string feature is a game-changer; it hasn’t clogged or tangled once, and I don’t have to keep hitting it on the ground to get it to work properly.

      It slices through weeds effortlessly, delivering clean cuts in no time. The battery life is impressive—I’ve used it for an hour without it dying on me, and it recharges in about 15 minutes. Plus, it’s easy to attach and detach.

      As a bonus, it’s a Black & Decker, which means the battery is compatible with my B&D leaf blower! I also own their large humane critter trap, which is fantastic and doesn’t even require a battery.

      I’m so happy with this purchase that I find myself searching for new weeds just to enjoy watching them get annihilated. Highly recommended!

    6. Rated 5 out of 5

      Amazon Customer

      Upon unboxing, it does need to be charged before use, so don’t expect immediate operation. However, it charged quickly, and I was able to tackle my entire yard effortlessly. It’s lightweight, and the vibration is significantly less than that of a traditional weed eater. The freedom of not dealing with a cord was fantastic. The auto feeder is a great feature; if the line snaps, you don’t have to stop to pull more out. While some reviews mention that the refills are pricey, there are more affordable alternatives available. Overall, this purchase was definitely worth the investment.

    7. Rated 5 out of 5

      Roni

      I appreciate the runtime I get on a single battery charge. At 63, this weed eater is a perfect fit for me, as the shaft length is comfortable. It’s simple to assemble, operates quickly, works exceptionally well, and is lightweight enough to leave me very satisfied.

    8. Rated 4 out of 5

      jcsthree

      I purchased this edger because it uses the same 20vMax L-ion battery as my hedge trimmer. My previous Black & Decker edger had a ni-cad battery that’s no longer available, and while the old edger worked fine, the battery didn’t last long. The new edger is lighter and shorter, but the motor is a bit of a letdown compared to my old one. However, it still performs well for edging and moderate trimming. I appreciate the better angle for edging despite the weaker motor, which likely contributes to longer battery life. Overall, this trimmer offers good value for light to medium tasks, but I would recommend looking for something else for heavy-duty use.

    9. Rated 5 out of 5

      Jerry

      After using a 40V B&D cordless string trimmer for many years, I finally wore it out. I intended to replace it with another 40V model, but I could only find a 20V version. While the battery doesn’t last as long as I’d hoped, it still has enough power and duration for my yard work (about half an acre). I do need to recharge the battery for edging tasks, but I plan for that in advance. What I appreciate most is how easy it is to adjust both the trimmer and the edger. It’s comfortable and lightweight, which is great for me as a 76-year-old man! I do wish the trimmer line lasted longer, but that’s typical for nylon string trimmers. After researching various options, this one seems to be the best fit for my needs.

    10. Rated 5 out of 5

      Amazon Buyer

      As someone who isn’t particularly handy and has relied on others in the past, I found myself needing to tackle some DIY tasks due to my current situation. Faced with the option of either doing it myself or letting the weeds grow to two feet, I decided to take the plunge and buy some lawn equipment online, despite my initial nerves. After more research than I anticipated while waiting for delivery, my order finally arrived from Amazon Prime three days ago.

      Today, I gathered the courage to unbox it and was pleasantly surprised. The trimmer is not only extremely lightweight, but it’s also well-constructed and requires minimal assembly—just a screwdriver to remove and replace one screw when attaching it to the main unit. After charging the battery for about 4-5 hours, I took it outside for a test run. I couldn’t believe how easy and effortless it was to operate!

      After spending about half an hour tackling the weeds in both my front and backyards, as well as the flower beds, the battery still had plenty of power left. I’m thrilled with my first piece of lawn equipment; it delivered a hassle-free experience without any tears or frustration. Ladies, don’t hesitate to give this a try—you’ll love it! Now I understand why guys refer to their tools as toys. I really enjoy using it, and the results are fantastic. Who doesn’t appreciate a freshly cut, weed-free lawn?

    11. Rated 5 out of 5

      courtney

      After reading the reviews, I decided to get one for myself, and it has truly been a game changer! This weed wacker is incredibly lightweight and easy to handle, making it ideal for my needs. I can mow my entire backyard in about 30 minutes, and the battery lasts just long enough before it runs out. This is by far the best purchase I’ve made; no more unpleasant gas fumes or loud mower noise. I give it a perfect 10 out of 10 and highly recommend it!

    12. Rated 5 out of 5

      SimpleGuy

      Excellent design with adjustable height for any user. The charge lasts around 30 minutes. The initial spool lasted a considerable amount of time and effectively removed most weeds. It struggled a bit with thicker weeds but still performed well. Good value for the price as well.

    13. Rated 5 out of 5

      DalGeek

      I absolutely loved my first-generation Black and Decker 20V weed whacker, along with the mower deck attachment. It has been ideal for maintaining my small yard and is incredibly easy for someone like me—who is a retiree—to handle. When the motor eventually wore out, I was uncertain if the latest Black and Decker weed whacker would fit with my old mower deck, but fortunately, it does! Plus, my old 20V Max battery works perfectly with it as well.

      It seems that Black and Decker has significantly improved the design and quality, as this new unit feels much sturdier than the previous one. It runs smoother and quieter, and the battery life appears to be noticeably better, even when using one of my old batteries. I wholeheartedly rate this product 5 stars.

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    Effortless Lawn Care: BLACK+DECKER 20V MAX Cordless String Trimmer ReviewBLACK+DECKER 20V MAX Cordless String Trimmer Review
    Original price was: $99.99.Current price is: $76.88.
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