The feeling that always comes with staying in a neat and healthy environment is amazing. It is a feeling that everybody desires. It starts with proper maintenance of lawns. Being that every homeowner is unique, you will, therefore, find variations on how each owner maintains their lawns. But be sure to find one thing in common in all the homeowners, which is the need to have the best lawn ever.

One of the tools that are very handy when it comes to lawn maintenance is the weed eaters. They are used to cut down grass and shrubs that the lawn mower cannot reach. The weed eaters are mainly classified into two categories, the electric and the gas-powered weed eaters.

Both the electric and gas-powered weed eaters have their own merits and demerits. However, the electric types are becoming popular because of their manoeuvrability, ease of holding them and much less prices. Despite the gas-powered ones being much convenient in terms of power delivered, they are more expensive and heavier. Their weights are also unevenly distributed.

The Black and Decker is a known brand that has proven itself over time when it comes to the production of electric weed eaters. It is for this reason that we want to find the best Black and Decker electric weed eater available in the market.

However much they are produced under the same brand, they have different features that help them perform the task of cutting weed to the best levels.

Top 10 Black and Decker Electric Weed Eaters

Take a look at some of the best Black and Decker electric weed eaters.

ImageProduct NameCutting Width (Inches)Price
BLACK+DECKER LST420 20V MAX Lithium High Performance Trimmer and Edger, 12"12$$
BLACK+DECKER LST220 20V Lithium Ion Cordless GrassHog Trimmer/Edger, 12"12$$
BLACK+DECKER GH900 6.5-Amp String Trimmer/Edger, 14-Inch14$
BLACK+DECKER LE750 12 Amp 2-in-1 Landscape Edger and Trencher7.5$
BLACK+DECKER LST136W 40V MAX Lithium Ion String Trimmer, 13"13$$
BLACK+DECKER MTE912 6.5-Amp Electric 3-in-1 Trimmer/Edger and Mower, 12"(Do not include Extension Powercord)12$
Black & Decker ST7700 4.4-amp Electric Automatic Feed String Trimmer/Edger, 13"13$
BLACK+DECKER LSTE525 20V MAX Lithium Easy Feed String Trimmer/Edger with 2 Batteries12$

Our Pick

BLACK+DECKER LST420 20V MAX Lithium High Performance Trimmer and Edger, 12"

Black and Decker LST420 Trimmer

Our Top Pick for the Best Black and Decker Electric Weed Eater is the Black and Decker LST420 Trimmer and Edger. It operates on 20-volts Lithium-ion batteries hence there are no limitations due to the extension cords. The dual-mode switch also makes it possible to work with maximum power or extend the runtime.

It is easy to start with a lot of user comfort due to the adjustable handle and height. It is a two-in-one machine that can be converted into a wheeled edger from a trimmer only in a matter of seconds. It is easy to start and operate among other features that an ideal electric weed eater should possess.

We would, therefore, like to recommend it for you for your lawn needs.

Choosing the best Black and Decker electric weed eater

Black and Decker electric weed eaters are produced under the same brand to perform almost the same functions but through different approaches with different features. These varying features are made to ensure that all customers’ needs are met. Before settling down on best weed eater, you will have to narrow down what you intend to use the machine for.

The different features of these machines can, however, make it a little bit difficult when trying to choose which one amongst them will be best suited for your lawn needs. To avoid the confusion that might accompany this, this article provides you with some of the features that will be great help to you. They are as outlined below.


The Black and Decker electric weed eaters have different power capability options. The type of work to do on your lawn determines the amount of power you will need. Higher power weed eaters can tackle the toughest of weeds and grass.

The electric weed eaters can either be corded or cordless for the voltage and battery powered respectively. The source of power is however not that important as long as the machine can produce sufficient power to meet your home demands and performs efficient jobs.

The size of the yard and the kind of work to be done is what will help you choose between the corded and the cordless weed eaters. Corded weed eaters may limit your movement, but as long as the yard is small in size, then it will not be big deal.

With the corded weed eaters, there are no worries about your battery going off until a recharge is done. On the other hand, the battery-powered weed eaters allow you to move around the yard without any limitations. They are best suited for large lawns.


The prices of the Black and Decker electric weed eaters vary depending on their power and type. However much it has been said that price does not relate to the efficiency of the machine, it has been proven with time that the somehow expensive ones are more efficient and long-lasting compared to the cheaper ones.

The decision lies with you as the buyer. Look for an electric eater that will fit into your financial obligations as long as it will help clear weeds and grass in your yard. Do not strain yourself, yet there could be a cheaper one with almost the same features.


The design of the weed eater must also be prioritized. Heavy machines are more likely to give you a hard time during transportation from one place to the other. Others are normally designed in such a way that the shaft length can be adjusted for user comfort during operation.

Some are designed with different edging angles for more precise cuts. The cutting blade can either be straight or bent at an angle of 90 degrees. The bent ones are much easier to manage and use since you don’t have to hold the machine at very odd angles. The angled position makes it reach the exact points you want it to.

The bent shafts will not go very deep and make cuts underneath bushes. On the other hand, the straight weed eaters are capable of reaching the tough spots and can at the same time be flipped easily for edging or gardening. The straight weed eaters also keep you distantly away from the cutting string which is safer.

Talking about safety, make sure that the electric weed trimmer is designed with safety features. These include protection of starter switches from accidental starting as well as keeping cords away from the operational area.

Lawn size

The size of your lawn is also a crucial factor to look into before purchasing any of the Black and Decker electric weed eaters. Larger lawns may require more powerful machines, or even a commercial string trimmer, that can accomplish the work in the shortest time possible.

Apart from the power, the cutting width is also very much important as the wider ones make you cover larger areas in just a single sweep. Corded electric weed eaters are not, however, that suitable for use in large areas as the extension cord might limit your operational area.

Smaller weed eaters can work for you when the yard is small in size. The voltage-powered ones will at the same time complete the cutting job without much strain on the extension cord.

String features

Look for weed eaters that have wider cutting paths as this will make them cover large areas in just single sweeps. The string should, however, be narrow enough to be used in very tight places. This will help improve the convenience and efficiency of the machine.

There are some types that come with either single-line or dual-line heads. Single-line heads are just okay but having an extra line is even much better when dealing with the toughest of weeds and grass.

The extra line provides more power. The dual-line is, however, harder to maintain compared to the single-line.

Black and Decker Electric Weed Eater Reviews

Black and Decker LST420 Trimmer and Edger

BLACK+DECKER LST420 20V MAX Lithium High Performance Trimmer and Edger, 12"

The LST420 trimmer and edger is battery powered. This makes it operate without the inconvenience of extension cords. This high performing machine has a dual-switch mode that allows you to choose between an extended runtime and the high power. It is capable of running continuously for one hour which is relatively sufficient for trimming of large lawns.

This machine is easy to start and involves very quiet operations. The pivoting handle and the height can be adjusted to ensure the user is comfortable and can easily control the machine. This product is perfect for trimming areas along flower beds, borders and sidewalks after edging and mowing. Its cutting width is 12 inches wide.

The 20-volt lithium ion battery has a Power Drive Transmission system that is meant to provide more power to the weed cutting string from the motor hence quicker operations. The batteries come in two packs.

To ensure continuous operation without bumping, this machine is fitted with an auto-feed spool. Its wheeled edging property makes it easy to convert it from an edger to trimmer. This item weighs only 8.2 pounds.


  • Quiet operations
  • User comfort is guaranteed
  • Dual switch mode
  • Easy to start
  • Continuous operation without bumping
  • Easy and quick conversion into trimmer or edger
  • Easy to maneuver and balance
  • No extension cord limitations


  • Slows down in large clumps of grass
  • At times the battery takes than less an hour

Black and Decker LST220 Trimmer and Edger

BLACK+DECKER LST220 20V Lithium Ion Cordless GrassHog Trimmer/Edger, 12"

The LST220 Black and Decker weed eater is easily turned to either a trimmer or an edger by turning the shaft. It is powered by a 20-volt lithium-ion battery that is durable with more charge retention compared to the NiCad batteries.

Weighing just 5.2 pounds with a cutting width of 12 inches, this product is perfect for use in your yard. Being cordless, this machine will clear weeds and shrubs around driveways and trees. Its lightweight makes it easy to operate. This machine can be adjusted fully to ideal heights for the operator to work without strain.

The different angle positions help you trim at somehow odd angles with a lot of ease whereas the telescopic pole is meant for making length adjustments. The PowerDrive transmission ensures maximum power delivery from the motor to the 12-inch cutting string. There is no need for stopping the machine and bump as the string is maintained at optimal length.


  • Maximum power delivery to the cutting string
  • Continuous operation without bumping
  • Lightweight
  • Easy and quick conversion from edger to trimmer and vice versa
  • Longer battery life
  • Adjustable height for comfort
  • Safety features prevent accidents
  • No extension cords


  • Batteries do not hold charge for long
  • Charging time is long (8 hours)

Black and Decker GH900 Weed Eater

BLACK+DECKER GH900 6.5-Amp String Trimmer/Edger, 14-Inch

The Black and Decker GH900 weed eaters are operated with a 6.5-amp rated motor. Its cutting swath is 14-inch wide. Its ergonomic design that features a pivoting handle with different positions and adjustable height enables the user control the machine with a lot of ease apart from the comfort during operation.

The motor is powerful enough and the additional high torque transmitted is for maximum performance when working on tough grass and weeds. In cases of heavy shrubs and grass, the Power Drive Transmission technology prevents bogging down.

You do not need to stop operation to feed its spool as the AFS auto-feed system ensures work is done continuously without bumping. It is a 2-in-1 machine that is easily convertible from a trimmer to an edger. You just need to rotate the wheeled edging, and your conversion will be effected.

Grass located in hard to reach places that mowers cannot access will be a thing of the past. This weed eater also guarantees cleaner and straighter edges. Weighing just 7 pounds, this machine is lightweight and can be used for long without getting tired because of the weight.


  • No bumping
  • Maximum control and comfort
  • High performance
  • 2-in-1 machine which is easy to convert
  • The guard guarantees safety of the user
  • Lightweight


  • Limited operational area due to the extension cord

Black and Decker LCC140 Trimmer and Sweeper

The LCC140 trimmer and sweeper operates on 40-volt lithium ion battery that has the PowerDrive Transmission technology incorporated for maximum performance. This high performance makes it cut the toughest of weeds.  The kit comes with two 40-volt batteries. The machine has a charge indicator which will make you know the charge level.

The automatic AFS feed spool is meant to ensure there is continuous operation without bumping. Its power command allows you to choose between maximum power which tackles thick weeds and maximum runtime to increase the runtime of the battery. It is a lightweight weed eater weighing 4.7 pounds. It also produces low-noise.

This kit comes with a 120 MPH sweeper that clears debris from driveways, garages among others. The blow tube of this sweeper has an inbuilt scraper that allows you to loosen stuck-on debris and matted leaves. What’s more, the sweeper is powerful and lightweight. The sweeper also has a power command dial.


  • No carbon emissions
  • Acts as trimmer and edger with easy conversion into any of the two
  • Accompanied by a sweeper in the kit
  • Lightweight
  • Low noise during operation
  • No bumping
  • No extension cords
  • Ability to choose between maximum runtime and maximum power


  • Comes with only one battery

Black and Decker LE750 Edger and Trencher

BLACK+DECKER LE750 12 Amp 2-in-1 Landscape Edger and Trencher

The LE750 edger and trencher operate on a 12-amp 2-1/4 HP high-torque (150 in. /lbs.) motor. This makes a perfect tool for clearing tough overgrowths and trenches leaving very clean paths. The edge guide easily converts it from an edger to trencher.

A simple pull of a trigger is all you do to start it.  Releasing the same trigger stops its operations. The cutting height can be controlled in three different positions using the blade depth adjustment. Being tool-free, it is quick and easy to assemble. The built-in cord retention helps secure the cord.

Leverage and flexibility are realized from the left, or right handed handle. With a weight of 13.3 pounds, this machine is lightweight and therefore easy to use. It also has a secure extension cord that will make sure there are no power interruptions caused by cable problems when operating the machine.


  • Easy conversion to a landscape trencher from an edger
  • Secure extension cord
  • Tool-free assembly that is quick and easy
  • The blade’s depth can be adjusted
  • Leverage and flexible
  • Powerful
  • Easy to start and stop
  • Lightweight


  • No angle cuts
  • Non-adjustable handle angle

Black and Decker LST136W Trimmer

BLACK+DECKER LST136W 40V MAX Lithium Ion String Trimmer, 13"

The Black and Decker LST136W is a cordless weed eater that operates on 40-volt lithium-ion batteries. It is a trimmer and an edger at the same time. The 13-inch cutting swath is wide enough to cover a significantly wider area in a single sweep.

Maximum power is transferred to the string from the motor through the PowerDrive Transmission technology making it efficient and convenient. This machine’s battery is versatile and can be shared with other tools. The auto-feed spool prevents bumping and hence offers a continuous operation.

You can choose between maximum power and maximum runtime by using the power command dial. The adjustments on handle and height are tool-free. It weighs 9.8 pounds which makes it light enough to be used for an extended period of time without getting tired.


  • Convenient
  • Maximum power delivery
  • Versatile battery
  • No bumping
  • Choice between maximum runtime and maximum power
  • Easy conversion to either edger or trimmer
  • Tool-free adjustments


  • The battery does not hold power for a long time.

Black and Decker MTE912 Trimmer, Edger and Mower

BLACK+DECKER MTE912 6.5-Amp Electric 3-in-1 Trimmer/Edger and Mower, 12"(Do not include Extension Powercord)

The Black and Decker MTE912 is a three in one tool that is operated by a 6.5-amp electric motor. It works as a trimmer, a mower and an edger. Its small size makes it easy to store and use in small yards of about 1200 square feet. The 6.5-amp motor provides sufficient power to make this machine perform the three different functions.

This model is available in both corded and cordless versions so it is upon you to decide on the one that will work best for you. It is gear-driven making it provide consistent power during operations and hence no bogging down. The pivoting handle can take different positions for the comfort of the operator. The height is also adjustable for the very same reason. The height can be adjusted in two decks, which are 1.6 inches to 2.4 inches.

The automatic feed spool ensures that there is continuous operation without any kind of bumping. It weighs 13.1 pounds and comes with no extension power cord.


  • No bogging down
  • No bumping and stoppages
  • Easy conversion
  • High performance with consistent power
  • Versatile
  • Easy to store
  • Available in corded and cordless versions
  • Operator comfort is guaranteed


  • No extension cord provided

Black and Decker ST7700 Trimmer and Edger

Black & Decker ST7700 4.4-amp Electric Automatic Feed String Trimmer/Edger, 13"

The ST7700 Trimmer and Edger is an auto-feed string edger and trimmer that weighs just 5 pounds which makes it lightweight. It can hence be operated with more control while less fatigue is experienced. It is operated by a 4.4-amp motor that has a speed of 10000 revolutions per minute. This makes it powerful and can, therefore, clear overgrown weeds and tough grass despite its small size.

Conversion from an edger to a trimmer and vice versa is made much easier by the 180-degree rotation of Groom-N-Edge. It has a 13-inch cutting width. The string is automatically advanced without any bumping due to the auto-speed spool.

The in-built auxiliary handle is for user comfort and control. The cord retention feature helps prevent accidents that may result from cord disconnection, therefore, there will always be continuous trimming process. It comes with a two-year warranty.


  • Minimized wrist fatigue
  • Lightweight
  • No accidental unplugging
  • Versatile
  • Powerful
  • Easy conversion to either an edger or a trimmer
  • No bumping


  • Not durable enough
  • May fail to feed at times

Black and Decker LSTE525 Trimmer and Edger

BLACK+DECKER LSTE525 20V MAX Lithium Easy Feed String Trimmer/Edger with 2 Batteries

The LST525 weighs 6.3 pounds and is easily converted to a wheeled edger from the trimmer. It draws its power from 20-volt lithium ion battery. The Power Drive Transmission technology increases the torque, and hence there is a maximum transfer of power from the motor to the 12-inch cutting swath.

The 2-speed control helps in choosing between extended runtime and more power. A simple push of a button advances the cutting line without bumping. Maximum comfort and control are as a result of the soft grip. The height and handle are also adjustable for the same reasons.

The cutting line has a size of 0.065 inches and rotates at speeds of between 5500 and 7200 revolutions per minute. The voltage without any workload should be 20 volts while the nominal voltage should be 18 volts.

Other accessories include two batteries, replacement spool, charger, and guard.


  • Increased torque
  • Dual speed control
  • Easy conversion to wheeled gear from trimmer
  • No bumping
  • User comfort


  • Not strong

Black and Decker ST1000 Trimmer

The ST1000 trimmer runs on a 1.8-amp motor that has a speed of 11000 revolutions per minute. It is a small weed eater that is ideal for smaller lawns. Apart from post-mowing maintenance, this machine makes a 9-inch cutting path.

Weighing just 4 pounds, it is easy to control and handle. The bump feed spool feeds the cutting line when need be. It has a cord retention property that guards against any accidental unplugging during operation.

It comes in a ready-to-assemble format that only requires two steps hence time-saving. Other features are the secondary handle and the 20-feet 0.065-inch diameter cutting line. The only issue to be worried about when using it is that it can get messy at times.


  • Easy to control and handle
  • Lightweight
  • Cord retention feature makes it safe
  • Easy and quick to assemble
  • Automatic feeding of the cutting line


  • Not ideal for large lawns
  • Messy