Your lawn is the highlight of your house, so it is no surprise that people make efforts to keep it clean and trimmed with the help of a lawnmower. String trimmers are commonly used tools to cut grass, especially in tight spots where an average lawnmower cannot reach. These crevices can be around your mailbox, front steps, fences, uneven spaces, etc.

When it comes to Black & Decker lawn products, you can choose their line of electric weed eaters over others because of their quality, century-long brand reputation, and affordability. These American power tools manufacturers offer electric string trimmers that are both corded and uncorded. They even have curved and straight shafts for specific gardening situations.

Comparison Table

Black & Decker BESTA510
Weight: 3.19 pounds

Speed: 8,000 RPM

Dimensions: 8.50 x 4.88 x 37.60 inches

Cutting swath: 14 inches

Black & Decker LSTE525
Weight: 6.3 pounds

Speed: 5,500-7,200 RPM

Dimensions: 9.25 x 41.33 x 5.74 inches

Cutting swath: 12 inches

Black & Decker LCC222
Weight: 4.5 pounds

Speed: 9,000 RPM

Dimensions: 42 x 10.4 x 7.25 inches

Cutting swath: 10 inches

Black & Decker LCC340C
Weight: 11 pounds

Speed: 3,500-6,500 RPM

Dimensions: 10 x 40 x 7 inches

Cutting swath: 13 inches

Black & Decker LST522
Weight: 5.7 pounds

Speed: 5,500-7,200 RPM

Dimensions: 9.25 x 41.33 x 5.74 inches

Cutting swath: 12 inches

Top 5 Best Black & Decker String Trimmers


Black & Decker BESTA510 – Budget Price Pick


Because of its affordability, we are putting this string trimmer as a budget pick. This trimmer is corded and contains a cutting swath of 14 inches. You can use it to cut regular grass overgrowth, and because it is lightweight, you can easily carry it around. It comes with an AF-100 spool already fitted, an auxiliary handle, and a guard you attach to the main body.


The tool’s AutoFeed system is an advanced internal system that works as a benefit, given the price range. This system automatically feeds the string to the device whenever it runs short, removing the bumping process. It leads to a lesser chance of damaging the head of the trimmer.

The trimmer has a 38-foot cord with a unique retention system, which prevents them from getting unplugged unnecessarily.

Design and Materials

  • Body: Sturdy Plastic
  • Power Source: Electric (Corded)
  • Amperage: 6.5
  • Voltage: 120 V
  • Starter type: Electric


One of the most significant drawbacks we felt using this product for a demo was that the spool ended quite fast. It needed a reload after operating for more than three hours straight. Despite the AutoFeed system, it does not always work well and can waste a lot of lines as well.


For an affordable price range, this string trimmer is an average choice. The trimmer is perfect for simple terrain but cannot sift through thickets of shrubbery and grass, whereas many competitors’ products can do the same. If you are looking for a low-level maintenance trimmer on a budget, this can be an option.

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  • AutoFeed spool technology
  • Powerdrive transmission for maximum performance
  • Lightweight
  • Cord retention system
  • Easy to assemble
  • Noisy
  • Prone to breakage after a few months

Black & Decker LSTE525 – High Power String Trimmer


This trimmer quickly has the best power-drive; with a push of a button, you can have loads of cutting power with its built-in increased torque transmission system. You can very easily switch between a trimmer and an edger, and it can make your yard work much more enjoyable.

It does not have an AutoFeed system, but it has an EasyFeed system, which activates with another button’s push. It runs on battery power, so there are no gas emissions that can be harmful to the environment. The package comes with two batteries so that you can have more run time.


It is easy to switch the trimmer to a wheeled edger. It is a hassle-free process, and you only need to push a button instead of disassembling parts. This conversion barely takes a few seconds, making it the best benefit you can get out of this string trimmer other than its advanced torque delivery.

Design and Materials

  • Body: Sturdy Plastic
  • Power Source: Electric (Battery)
  • Cutting swath: 12.”
  • Voltage: 20 V Lithium-ion
  • Speed Modes: 2


The trimmer body is made up of plastic that can prove to be fragile over extensive use. It is not heavy-duty, and you have to take good care of it to make it last a bit longer.


For a power-drive string trimmer, this string trimmer comes with decent features. It can help you with your yard work and should provide excellent value for money. From an ergonomics perspective, it is a pretty good option.

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  • Comfortable grip and adjustable trimmer/edger
  • Can easily convert to an edger whenever required
  • Wide swath for cutting
  • Cordless
  • Challenging to clean with water due to the motor assembly
  • Does not have a self-feeding head

Black & Decker LCC222 – Low Noise String Trimmer


Having electric lawn tools that are quiet and less noisy is always a plus point, and Black & Decker LCC222 provides the same experience. It comes in a combo pack so that you can trim, edge, and sweep all-in-one tool. It is also lighter in weight and gives you customization of handle height for ease of use.

Its multiple modes are compatible with other Black & Decker garden tools such as BESTA510 and LSTE525.

You can even adjust the height of the shaft to reach various heights. The post itself is quite ergonomic, with the motor on one end, closer to the trimmer head, and battery on the opposite.


The trimmer comes with an automatic feed spool system, so there is no bumping and stooping required. Due to larger battery life and an additional battery in the kit, you can even trim larger yards with this tool. On a 2-3 hours charge, it can last up to 45 minutes if used non-stop. Because of the other battery in the kit, your garden work time can go smoothly without interruption while the primary battery gets recharged. The four-staged battery indicators on the shaft update the levels of charge on the battery.

Design and Materials

  • Body: Sturdy Plastic
  • Power Source: Electric (Battery)
  • Amperage: 6.5
  • Voltage: 120 V
  • Starter type: Electric


We feel that this trimmer’s only drawback is that the head does not work effectively against thicker growth. The string that comes with it is not strong enough, although you can replace it with better quality. You can still face issues with trimming with thicker growth if you plan on continuing using the recommended spool.


The pricing is reasonable, and the whole combo kit is portable, so you can choose this one if you are looking for a product that can solve multiple gardening problems. Because of its features, this trimmer is perfect for small to medium-sized lawns and yards.

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  • Does not use gas to power up
  • Lightweight
  • Affordable
  • A combination kit with a variety of essential garden tools
  • Easy to maneuver
  • The life of batteries is shorter, but it may not be a problem for some users

Black & Decker LCC340C – Best Battery-Powered String Trimmer


It comes with a kit and an LST140 string trimmer and edger, and an LSW40 leaf blower. The trimmer is cordless and provides 40 V string trimming and edging, along with sweeping. Its high-torque Power Drive transmission of 6,500 RPM makes it one of the fastest trimmers in the market. The line unit is 0.065 inches in diameter, with a 13” swath. An automatic feeding system makes it easy to use, and you can save time. The sweeper generates up to 130 miles per hour speed, which is effective against garden debris from any terrain. You can also check the battery levels on both units. Both units also share a 40 V battery, which is included. They are compatible with the 36 V and 40 V Black & Decker range of tools.


The complete garden tool kit is a great advantage when you buy this product as you can get a leaf blower in addition to the trimmer. A 40 V battery is a benefit worth mentioning, as many trimmers operating on batteries tend to remain on 20 V battery power. There are an additional battery and a charging unit in the kit to make the running time longer.

Design and Materials

  • Body: Sturdy Plastic
  • Power Source: Electric (Battery)
  • Voltage: 40 V
  • Speed: 6,500 RPM
  • Cutting Swath: 13”


The only drawback for this trimmer and the kit is that the set-up is heavier to carry around.


This kit is one of the most suitable trimmers in the market, and that too for a budget product. You can trim, sweep and blow stray leaves out of your yard with just a single purchase. If you want to get a complete set of garden tools, need low-sounding equipment that functions smoothly, you should consider this product.

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  • Battery-powered: does not produce pollutants
  • Self-feeding trimmer line head
  • High-powered motor
  • Low noise levels
  • Leaf blower is not powerful enough
  • Requires frequent charging

Black & Decker LST552 – Larger Battery Life


This trimmer has an automatic feed spool system that feeds the trimmer line as needed, so you do not care about bumping. This trimmer battery is LBXR2520, which provides 66% more battery capacity for a longer runtime. It also has a Power Drive transmission system that increases torque for more cutting power at the string. You can adjust the shaft’s height and handle with the help of a soft and comfortable grip.


The good thing about LST522 is that it Is very lightweight. It weighs only 5.7 pounds, making it easier to maneuver and carry. Since it is lighter than many other trimmers, you can easily balance it for use on fences.

Design and Materials

  • Body: Sturdy plastic
  • Power Source: Electric (Battery)
  • Voltage: 20 V
  • Feed System: AFS
  • Speed: 5,500/7,200 RPM


Once extended, the shaft does not go long enough, so you might find yourself leaning on certain places. Some users might complain of back pains as a result, especially if you are tall.


This trimmer has a longer battery life, lightweight, and can easily be used for light-duty jobs. If you are looking for something to cut through the thick stuff, you need something powerful than this trimmer. Otherwise, it is good enough for a medium yard. Additionally, it works fantastic as an edger.

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  • Comfortable to handle
  • Longer battery runtime over a small charge
  • Two speeds
  • Lightweight
  • Easy to use
  • Shorter shaft

A Buyer’s Guide to String Trimmers

How can you find out the best trimmers for your yard? It may seem challenging to find the best one, but it all comes down to finding a suitable tool that caters to your needs. Following are some of the features to consider before you decide to purchase a string trimmer:


String trimmers have either straight shafts or curved ones. Curved shafts bend halfway between the handle and the head.

You should use straight shafts for crevices where you might need to kneel or bend to trim them. Since they are longer in height, they can reach these areas smoothly. Some of these trimmers are also used to cut small branches.

Shorter shafts are mostly curved for taking care of smaller growth perpendicular to the ground.

Power Source:

Before choosing a string trimmer, you must finalize which one you want to buy: gasoline ones or battery ones, or with a power cord.

Corded electric trimmers are the cheapest, but you cannot use them for outdoor yards, huge ones. Battery-powered trimmers often need constant recharges, which can be a hurdle if you want to finish the job in a day. Gasoline ones produce pollutants, are immensely loud, and need a mixture of oil and gas to keep them running.

Since all of them have some disadvantages, it boils down to your specific situation. Since Black & Decker trimmers are electrical, so you might have to decide if you can use a corded trimmer or a battery-run, depending on the space you are clearing.

Feed Systems:

Two feed systems control the amount of string that is fed to the head. The traditional system is called “bump feed,” which requires you to press down on guard in a bumping motion to release more of the line manually. This system gives users the power to control how much string is used.

The other system is an automatic feed system, where the trimmer extends the feed line automatically as you go. The most significant benefit of a system like this one is that you do not have to take care of the string manually. However, it can cost you a large amount of string on the downside and may even break easily. They are also notoriously difficult to fix.

Cutting Width:

On average, string trimmers have cutting widths of about 12 to 14 inches. Smaller cutting widths mean that you can only cut a small amount of grass and that too with additional effort. They are great for smaller yards.

Larger width trimmers cut more at once with minimal effort. Hence they are suitable for large yards. This feature helps you based on your comfort level, physical ability, and the size of the area you are clearing. It does not directly depend on the cutting width size, i.e., bigger is not always better.


It is always important to look at what safety gear comes with the trimmer kits or what kind of safety precautions the tool manual asks you to ensure. Always wear a pair of goggles to avoid anything from getting in your eye. Many new models offer cutting guards as well.

Extra Features:

If you are buying a trimmer that can also be converted into an edger, you save yourself a good lot of money. Along the same lines, if you go for a complete kit, you can get leaf blowers and sweepers.

Always choose products that can give you additional help for garden maintenance as they are lighter on the pocket and save time between switching to a new tool altogether.

Situational Contributors:

You should focus on your specific situation to make an informed decision. Before buying a trimmer, determine the size of your yard. For smaller yards, electric trimmers are quick to work with; for larger yards, you can choose gasoline trimmers.

You should also find out the obstacles and the terrain of the area that needs to be cleaned. Look at the planting beds you have, area around trees, fences, etc. It is challenging to maneuver corded trimmers around large items because they might get tangled in them.

It would help if you also looked at the tool’s weight, noise, and connection capability.

Who Should Buy String Trimmers?

Almost anyone with a yard or lawn needs a string trimmer to take care of the area. A neat and clean lawn looks homely and can help you get rid of unwanted plant intruder species. A string trimmer can also help you trimming around flower beds where you need to be extra cautious.

Why Is It Important to Choose the Right String Trimmer?

It is crucial to find out which product is suitable for your yard to make an informed decision and not invest in something that can cause more harm to your garden than good. If you need an electric (battery) trimmer, buying a gasoline one would not help you the way you want. Similarly, the right string trimmer is decided based on the features. Always look for the features and your needs before making a purchase.

Frequently Asked Questions (FAQs)

Can I use Ni-Cad batteries?

Ni-Cad battery-operated string trimmers are a thing of the past, and almost all of the modern tools have Li-ion batteries. It would be better to choose Li-ion as these have higher availability, and you would not need to upgrade if you damage or break the Ni-Cad battery trimmer.

Why does the trimmer line break?

Trimmer line breaks when line crowding occurs. It means that the trimmer head got too close to a hard object, which breaks the line. These hard objects might include cement, rocks, fences, etc.

What is the correct string diameter?

On all Black & Decker products, the correct string diameter is 0.065 inches.

How long is the warranty?

Warranty is subject to change for each product, but most commonly, the trimmers carry a 2-year warranty.

What is the process of line replacement?

If you use any other diameter line, it can damage the trimmer head and can cause the performance to degrade over time. If you want to remove the line, make a fold at the end of the line. The fold should be at about 3/4 inches of the length. After inserting the new bar, make sure that the line is tight against the spool.


You can always find out string trimmers ideal for your situation, based on a cursory requirement check on your end. More often than not, you need electric trimmers, and Black & Decker trimmers are state-of-the-art budget-friendly options. Some of these trimers can also be used for shrub trimming and small plants. Ensure that your tool is appropriately taken care of every time you put it aside after use. You should always wear protective gear to ensure proper safety measures as well. Also, look for strings that are compatible with the product you have. Otherwise, it will damage the trimmer.

If you are looking forward to future technology, you will find that Black and Decker is thinking about making their cordless trimmers power-efficient and lighter in weight.

John Billiou

John Billiou

LOCATION: Visalia, California


John Billiou assumed operations of the family business in 1989 with a “big appetite” for success.

Based in Central California, Billiou's Has been serving the Parts Needs of Lawn & Garden Dealers Across the Western United States for 70 Years.

Today, the company distributes new equipment and parts in 13 Western states and John said their No. 1 customers are cities and counties.

Billiou’s provides field support through their call center, field sales force, and an extensive website.

Billiou’s team strives to longstanding value to the customer and readers by making reliable and solid buying recommendations.

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