Best Battery-Powered Weed Eaters | Buyer’s Guide & Reviews

Stuart Williams
By Stuart Williams 53 Min Read
53 Min Read
best battery powered weed eaters featured

Are you tired of the loud noise and fumes gas-powered weed eaters produce?

Do you hate having to untangle the cord of your electric weed eater now and then?

If so, battery-powered weed eaters might be the solution. I have researched the top 15 rechargeable weed eaters from which you can choose.

Nothing frustrates a homeowner more than an overgrown yard rife with weed. This is why people employ different methods to get rid of unwanted plants around their houses.

Stressful methods such as hoeing and manual uprooting, using pesticides (which are bad for the environment.) Hoeing and uprooting are both stressful and will not give the yard or lawn that trimmed and pleasant look. This is why many people opt for mowers/weed eaters.

A standard weed eater uses a monofilament line to trim weeds instead of a blade. As the line spins, the string is held out from its center by centrifugal force. Some monofilament lines (i.e., single-string lines) have more cutting power than the regular ones.

These are more effective when cutting quite large woody plants. You can use these for a very bushy garden.

The earliest and most common type of weed eater is the gas-powered one, which generates a lot of noise and toxic fumes. Corded electric weed eaters were then made to solve this problem.

However, you still have to go through the hassle of untangling the connection cord every time you use it. Also, an electric weed eater limits movement, as you have to stay close to the electrical outlet.

This is where the advent of a battery-powered/rechargeable weed eater comes in to solve the problem.

A battery-powered weed eater uses a rechargeable battery as its power source instead of gas or an electrical outlet. It has lots of advantages over gas-powered and corded ones. The first of which is energy saving.

For most models, you only need to charge it once, after which you can use for up to two hours. There is no need for gas or constant connection to the electrical outlet.

A cordless weed whacker also offers you a free range of motion than a corded weed eater. There is no distance limitation or the need for you to untangle cords caught in bushes or trees. Lastly, battery-powered weed eaters are also ecologically friendly than gas-powered ones.

I have personally tested a lot of weed eaters, and I’ve gotten enough information as to which of the weed eaters are the best out of the many available weed eaters on the market. However, some of these battery weed whackers are very pricey, so you must be prepared to spend some cash if you want to get one.

Regardless, you’ll get enough quality for your money if you take the time to read this article. You also have to consider some issues before deciding on which to buy.

The first of which is the size of your yard. Battery-powered weed eaters are ideal for use in a small space as they are not as powerful as gas-powered ones. Some can run for up to an hour, while some can last for more than that.

Best Battery Powered Weed Eaters Comparison Chart

Before we move to the actual review, Take a look at my comparison table of the best battery powered weed eaters and their specifications. This is to give you an idea of what the features are before we explain them in detail.

Makita XUX01ZM5 18V X218V X27,100 RPM12 inchesn/aCheck On Amazon
WORX WG163 GT 3.020V X27,600 RPM12 inches1 Year LimitedCheck On Amazon
BLACK+ DECKER LCC22220V X2N/aN/aTwo Year LimitedCheck On Amazon
Greenworks PRO GHT8032180V3000 SPM26 inches2 Full YearsCheck On Amazon
Greenworks Max 2234240VN/a20 inchesN/aCheck On Amazon
BLACK+ DECKER LSTE52520V550012 inchesTwo Year LimitedCheck On Amazon
BLACK+DECKER LCC340C40V130 MPHN/aTwo Year LimitedCheck On Amazon
BLACK DECKER LST 140C40Vn/a12 inchesThree Year LimitedCheck On Amazon
GreenWorks STBA40B21040V110 MPH12 inchesN/aCheck On Amazon
GreenWorks 2134224VN/A12 inchesN/ACheck On Amazon
DEWALT DCST920P120V6,000 RPM13 inchesOne Year FullCheck On Amazon
WORX WG15420VN/a10 inchesN/aCheck On Amazon
WORX WG18040VN/a10 inchesThree Year LimitedCheck On Amazon
DEWALT DCST920B20V6,000 RPM13 inchesN/aCheck On Amazon
BLACK+DECKER LST13640VN/a12 inchesThree Year FullCheck On Amazon


Now that I’ve made a list of the top 15 battery powered weed eaters alongside some of their features, we’ll go into the review in detail under this section. We’ll also go through the pros and cons of each product.

#1 Makita XUX01ZM5 18V X2

The first product we’ll review is a highly rated rechargeable weed eater manufactured by Makita. The weed eater has a brushless motor that can deliver up to 7,100 RPM, with three-speed options.

The lowest speed option is set at 4200 RPM (RPM refers to revolutions per minute), the medium at 6000 RPM, and the highest speed option set at 7100 RPM. This differentiates this product from a lot of the other products on the market.

One attractive feature this product has is that it is compatible with a variety of shaft attachments which you can change, depending on the amount of work you intend to do with the machine.

This weed eater also features an electronic torque control, which will turn the engine off if the rotation speed suddenly fluctuates or stops.

This feature serves as extra protection for the engine and the shaft. It also has an overheat warning system that alerts the user once the machine is getting too hot.

This Makita product uses two 18V lithium-ion batteries, which amount to a total of 36V. Though the battery capacity is on the average side, it should last for more than an hour after a full charge.

Another unique feature of this product is the reverse rotation system, which rotates the shaft in a clockwise direction after activating the system. This comes in handy if the brush cutter head gets entangled in weed or grass.

  • A Speed control system that offers more control.
  • Lightweight. The weed eater weighs a total of 9.8 pounds, which allows for more maneuverability
  • Excellent battery life: It lasts for more than an hour after a full charge.
  • It has impressive cutting speed.
  • The product doesn’t come with batteries attached; you have to buy them separately.
  • The batteries and charger are quite expensive.

#2 WORX WG163GT 3.0

The second product on our review is the WG163GT, developed by WORX. This product features a trimmer and edger which are combined. The machine can be switched from a trimmer to an edger within seconds.

A peculiar feature of this product is the instant line feed. With the push of a button, the command feed spool system replaces a damaged line withing seconds.

The brush head can also be titled, which allows you to get to places that are tough to reach. It also features a spacer guard, which helps to ensure you do not destroy plants, flowers, or other useful things.

The cutting speed is also impressive, as it’s set at 7600 RPM. Unlike the previous product, the WORX does not feature a speed control. However, it comes without 2 lithium-ion batteries, unlike the MAKITA, which will save you from spending extra cash.

The battery capacity isn’t impressive, though, as it is just 20V. Regardless, the batteries have a life span of 3 to 5 years and are covered under a 1-year warranty.

The battery should last for around 20 to 30 minutes after a full charge. This means you have to charge frequently during long term use.

A cool feature this product has is the rubberized wheels, which help to guide and support the edger.

  • An instant line feed system to ensure you keep working uninterrupted.
  • A built-in 2-in1 edger and trimmer that can be converted quickly to suit whichever purpose.
  • An adjustable spacer guard to help protect plants and flowers.
  • The product has a lightweight; it weighs only 5.3 lbs.
  • Small battery capacity. The 20V batteries only last for 20 to 30 minutes, which means you have to recharge frequently.
  • The line is not suitable for cutting through thick weeds and brush.
  • The motor isn’t brushless.


The BLACK+ DECKER LCC222 is suitable for clearing driveways, garages, sidewalks, and yards. It is one of the few weed eaters on the market which features an automatic feed spool, which means you do not have to change the string manually each time. Bumping also isn’t required.

This weed eater also features two 20V batteries, just like the WORX. The machine weighs 10.5 pounds with the battery included. The product dimensions are 42×10.4×7.2 inches.

Manufactured by Black & Decker outdoor, the machine lasts up to 30 minutes on a full charge. The product also comes with a two-year limited warranty, which covers the battery and shaft.

The black decker LCC222 is much lighter than most weed eaters, this makes room for easy use, and it stresses your arms less. The product also comes with a leaf blower, which is quite nice as it allows for easy cleanup after mowing or trimming.

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One thing most people love about this particular product is the quietness.

Compared to most other brands on the market, the motor is tranquil and runs smoothly. However, the downside is that it’s not suitable for heavy-duty work. You might have some problems if you try to cut through thick grass or bushes.

The leaf blower isn’t all that powerful too. It is mostly suitable for grass clippings and a small amount of leaves. The battery also takes quite some time to charge. Regardless, it’s a good product overall, considering its price.

  • Very easy to handle due to the lightweight.
  • Great edger and trimmer, the leaf blower also comes in handy
  • Decent for basic yard work.
  • It has an automatic line feeding system that feeds the string with no bumping required.
  • Low battery capacity.
  • Low power, not suitable for heavy usage.

#4 Greenworks PRO GHT80321

The GreenWorks PRO is a wireless weed eater with a cut capacity of 3/4 inches. The product features a brushless motor which provides more torque and longer machine life. The GreenWorks Pro also features a magnesium gearbox, which ensures maximum durability.

Rather than a spinning line, this weed eater has a 180-degree rotating handle with a laser-cut blade for maximum results. A striking advantage of this weed eater is the high battery capacity.

The product comes with an 80V lithium-ion battery, which can last for more than an hour after a full charge. However, you’ll need to purchase the battery separately as it does not come with the product.

Be prepared to spend some extra cash, though, as the battery is quite expensive due to its high capacity. The blades are quite sharp and long; 26 inches.

So they are suitable for cutting through reasonably thick bushes and shrubs. The battery also has a quick charge function; a 30-minute charge can give up to one hour of usage.

The cut speed is around 3000 RPM, and the machine also has an anti-jam feature. The entire product weighs about 11 pounds, and the total product dimensions are 44 x 8 x 8 inches.

Compared to most weed eaters on the market, the Greenworks PRO has a low to average cutting capacity as it is just 3000 RPM.

This weed eater, however, comes with a full two-year warranty, which covers a range of parts. In conclusion, I’ll say this product is quite powerful as it comes with a 26-inch blade. It also has an impressive battery capacity, which is nice. Overall, the products is a good value for the money.

  • Impressive battery capacity, and a nice quick charge feature.
  • Strong blades for cutting through dense bushes.
  • Battery not included in the original packaging.
  • Heavy weight; more likely to stress your arms after use.

#5 Greenworks Max 22342

Like the Greenworks PRO, the Greenworks max is a battery-powered weed eater developed by Greenworks. The main difference is that rather than a blade, as in the case of the Greenworks Pro, the Greenworks Max comes with a 0.65” dual string line. The Greenworks Max also comes with a blower plus string trimmer combo.

You can use the product as a leaf blower after cutting grass or weed. The product has an innovative axial fan design, which gives up to 110 MPH and 390 CFM to handle some tough clearing jobs.

Unlike the Greenworks Pro, this particular brand comes with a 40V 2AH lithium-ion battery. It also supports a 4AH battery model, which is stronger but takes longer to charge.

The 2AH battery charges within an hour and runs for up to 45 minutes after a full charge. The 4AH battery takes up to an hour to charge and runs for an hour after a full charge.

A nice feature of this product is the variable speed trigger and cruise control. This spec allows you to control the speed and thus save power along the line. The string also has a 12-inch cut path, and it strong enough to cut through fairly thick bushes.

According to the manufacturer, the blower is best used on a hard surface or grass. The trimmer is suitable for use in a yard that’s up to 1 or 2 acres. The machine weighs just 7 pounds, which makes room for more maneuverability as it’s lightweight.

The engine also has a smooth operation and has a comfortable noise level. Another nice feature this product has is the onboard battery life indicator. This allows you to monitor the battery level during use.

  • Decent battery life.
  • Speed trigger and cruise control.
  • Trimmer plus blower combo.
  • It isn’t suitable for cutting through thick bushes.
  • The cutting power reduces with the battery level.


The cordless weed eater manufactured by Black & Decker outdoor has two 20V lithium-ion batteries plus an easyfeed string trimmer/edger. It also has a two-speed control for more power or extended run time. The shaft and handle are both adjustable, which makes it easy to handle.

The engine also has a power drive transmission, which helps to increase the torque to get more cutting power. The trimmer plus edger combo makes it easy to convert from a weed trimmer to a wheeled edger in seconds with no bumping required.

It also has an automated, easyfeed string with which you can advance the line with the push of a button.

The BLACK DECKER LSTE525 has a line diameter of 0.065 inches, which translates to a cutting length of around 12 inches, which is quite decent.

The product comes with the battery, unlike some brands, and the included components in full are LSTE520 20V MAX EASYFEED TRIMMER, Two LBXR20 20V MAX Lithium Batteries, One LCS1620 charger, One guard, and One AFS Spool.

The BLACK DECKER has an impressive cutting speed of 5,500 RPM at the lowest setting and 7,200 at the highest setting. The rechargeable weed wacker weighs less than 7 pounds, which is quite light and allows for easy use. The product dimensions are 9.2 x 41.3 x 5.7 inches.

You can get up to 60 mins of runtime on a full charge, which is not bad, considering the battery capacity. Overall, considering the price, the product is of decent quality, and I’ll recommend it to those who are on a tight budget but still want to get something worthy.

  • Adjustable handle and shaft, which makes it suitable for people of different heights.
  • Speed Control.
  • High cutting power.
  • The engine is noisy.
  • The batteries run out quickly.


The BLACK+DECKER LCC340C is a 40V MAX cordless weed eater with a sweeper and string combo. Like the BLACK DECKER LSTE525, the LCC340C also has a trimmer+ edger combo, i.e., it can convert from a weed trimmer to an edger in seconds with the push of a button.

It can also function as a sweeper for blowing debris off surfaces. One advantage this model has over the LSTE525 is that it weighs less than it. The lightweight design pegs it at a maximum of 4lbs.

The engine has also been improved to reduce the noise since that was the major complaint about the LSTE525. Like the LSTE425, the shaft is also adjustable, making it easy for people of different heights to handle. The LCC340C also has an automatic line feeder, which changes the strings with no bumping required.

This weed eater has a POWER DRIVE high torque transmission, which gives clean and fast cuts. The 40V MAX sweeper moves at speeds up to 130MPH, which is enough to clear debris from hard surfaces.

The LCC340C also has a battery life indicator that shows the battery charge level. The full pack components are One LST140 40V MAS String Trimmer/edger, One LBX2040 40V MAX battery, One battery charger, One Spool, One guard, One LSW40 40 MAX Sweeper, and One Blow tube. As you can see, this product is a full package as it contains every component you need.

The product also comes with a two-year limited warranty, which covers some parts such as the battery and engine. The only downside to this product is the blower.

It’s not powerful enough to blow much debris such as semi-dry leaves and grass. However, the trimmer and edger both work just fine. It is an excellent product considering its price.

  • Impressive battery life.
  • Lightweight design.
  • Adjustable shaft and automatic line feeder.
  • Weak blower.


The LST140C is another rechargeable weed eater from Black & Decker outdoor with brilliant features. Like the LCC340C, the LST140C also has a 40V, Max lithium-ion battery with a battery indicator that shows the remaining power.

The included components in the pack are: One LST140 40 MAX Lithium String Trimmer/edger, One LBX1540, One 40V MAX charger, One AF-100 Spool, One Guard, and One Auxiliary handle.

This weed eater, like the previous ones I’ve reviewed, also has an automatic feed spool, which automatically feeds the trimmer line whenever a new line is needed with no need for bumping.

Like the other battery-powered weed eaters made by Black Decker, the LST 140C has an inbuilt trimmer+edger combo, which converts the brush head from a weed trimmer to an edger in seconds.

The line trimmer has a 13-inch cutting reach, which is wide enough to cover significant space with minimal movement. The product dimensions are 9 x 40 x 4 inches with the weight set at 8 pounds, which is moderate.

This model is quite similar to a lot of the other BLACK DECKER models, such as the LST136. This model is only more recent. From the product details listed by the manufacturer, I’ve noticed the cutting speed is missing, which is suspect.

The product also comes with a 3-year limited warranty which only covers some parts of the machine. Regardless, the other features look great, and at $99, it isn’t a bad bargain.

  • Decent battery life.
  • Has an automatic feed spool.

#9 GreenWorks STBA40B210

The GreenWorks STBA40B210 is a cordless string trimmer that can also function as a blower. The weed eater comes with a 40V 2.0AH battery, which has up to 45 minutes of run time when fully charged.

It is best used in a yard sized between 1/2 acres. According to the manufacturer, the blower works on a hard surface or grass for optimum results. The trimmer has a dual line with a 0.065 diameter. The line has a cut path of 12 inches, which seems to be the standard for many string trimmers.

Like many other weed eaters on the market, the GreenWorks STBA40B210 has an automatic trimmer line feed, which feeds a new line with no bumping required. The blower speed also looks decent, with the maximum speed pegged around 110 MPH.

This product has a variable speed trigger, unlike the previous one, I reviewed. It helps you control or supply extra power depending on the thickness of the bush or how much the leaves or grass are, in case you’re using the blower.

The variable speed trigger also has a cruise control system, which helps to ensure a smooth operation. Another feature this product has, which I like, is the on-board battery life indicator, which displays the battery power left during usage.

The weed eater can also work with other compatible batteries, such as the 4ah model 29472, which is stronger than the 2ah model. At just 7 pounds, the product is lightweight and thus easily maneuverable without stressing your muscles.

The engine also has a smooth operation with a decent noise level. Overall, it’s a good product that comes with the features most people look out for.

  • Automatic line feed.
  • Variable speed trigger.
  • Decent battery capacity.
  • No edging wheel.
  • Cutting power decreases alongside battery power.
  • Not suitable for heavy use.

#10 GreenWorks 21342

The GreenWorks 21342 is a cordless weed eater made by GreenWorks and is similar to some of the company’s other weed eaters. The product comes with a pivoting head, which allows for both edging and trimming.

This brand has an edging wheel, unlike the GreenWorks STBA40B210, which is an added advantage.

However, the battery capacity is quite low, compared to the STBA40B210. It comes with just a single 24V 2.0AH battery, which would only run for a few minutes before you need to charge it again.

The product also has a telescoping drive shaft, which is 40 inches in length and is compatible with the GreenWorks Replacement Spool.

The pivoting head can be changed to four positions, which will allow you to get to some difficult to reach places. Like its predecessor, this weed eater also comes with an automatic line feed system with no need for bumping. A lot of Greenworks weed eaters have this feature.

The trimming line has a 12-inch cut path with a 0.65 single line auto-feed, which lets the trimming line advance easily. According to the manufacturer, the product is best used in a 1/4 acre yard, if it would be used with the 24V battery.

The 24V battery can offer up to 30 minutes of runtime, which is small compared to other brands on the market.

The motor isn’t brushless, and it does not support attachments. The product dimensions are 30.3 x 9.2 x 6.7 inches, with the entire weight measured at 8.82 pounds. The length of the pole is also adjustable, making it suitable for different individuals.

The cutting speed is also decent and will cut through light and fairly thick weeds or grass with ease.

  • Automatic line feed.
  • Lightweight design.
  • Low noise levels.
  • Decent power.
  • Low battery capacity.
  • A not-so-good design.
  • Not suitable for heavy use.


The DEWALT DCST920P1 is a brushless weed trimmer with a 20V MAX 5.0Ah lithium battery. The brushless motor helps to maximize motor efficiency and durability.

The DEWALT trimmer comes with a dual 0.080” line, which has a bump feed. The cutting swath is about 13 inches, one inch higher than the average, which is around 12 inches.

The design is awe-inspiring, and the product also comes with a variable trigger with speed control, which helps to save power and maintain control. This weed eater comes with a patented gear drive design, with an RPM of 0-4,600 at the initial stage — the cutting power peaks at 6,000 RPM.

The patented gear design helps to provide more torque and also maintains cut speed under load. The DEWALT weed eater comes with an auxiliary handle, charger, guard, and a rewound line in the spool. The product dimensions are 67.8 x 10.9 x 8.8 inches, and it weighs a total of 14 pounds, which is quite heavy.

All the components are covered under a full one-year warranty. The manufacturer will maintain the product and replace any worn part caused by normal use, for free.

The shaft isn’t adjustable, unlike the Black Decker. This weed eater is suitable for use on noise-sensitive properties as they are easy on the ears while maintaining enough cutting speed to power through the tough overgrowth.

However, the downside is that the product is not available for shipping in some countries, and so it’s impossible to get if it’s not available in your country. The battery capacity is also unimpressive.

Regardless, this cordless weed eater is very affordable, especially when you consider the features.

  • Has an innovative gear system.
  • High cutting swath.
  • Variable trigger with speed control.
  • Low battery capacity.
  • Bump feed.

#12 WORX WG154

The cost of acquiring a WORX WG154 is $68. Personally, this is the best battery powered weed eater you can get at that price. The weed eater has a string trimmer + edger combo, which allows you to switch from the trimmer to an edger within seconds and vice versa.

You also have the option to convert the line’s cutting path to get a wider cut or for extended run time. The product also comes with a folding spacer guard, which would help protect ornaments such as flowers and plants.

WG154 has a 20V lithium-ion battery, which isn’t impressive, but manageable considering the price. However, the time it takes to reach a full charge is mindblowing, a whole 5 hours!

After a full charge, the battery only lasts for around 25 to 30 minutes of continuous usage, after which you have to go through the long charging process again.

However, the product has some attractive features such as the 100% automatic line feed (single) with no bumping required. It also has an ergonomic front handle, which is fixed and gives room for maximum control. The trimmer-edger conversion is too cool; it just activates with a single touch.

The WORX is also very light, it weighs just about 4.5 pounds, making it very easy to move. The handle/shaft isn’t adjustable, however, which makes it hard to maneuver for specific individuals.

It is also worthy of note that a battery power indicator is present, which indicates when the battery needs to be charged.

This is signaled by a blinking green light on the indicator. If you’re on a budget and you do not mind the specs, then this might be the right product for you as it’s cheap and suitable for basic yard work.

  • Affordable.
  • Lightweight and easy to handle.
  • Low battery power; only lasts for 25 to 30 minutes after a 5-hour charge.
  • Not suitable for cutting through thick grass or weed.

#13 WORX WG180

The WORX WG180 can be said to be an upgrade to the WORX WG154. Though slightly more expensive, it has additional and improved features compared to the WG154. The first of which is the improved battery capacity, which is now 40V.

Like the WG154, the WG180 also has a trimmer+ edger system. It can be converted from a trimmer to an edger, or even to a mini mower with a push button.

This brand also has an innovative command feed spool system, which is faster than the one built into the WG154. Unlike the ‘154, this brand has a telescopic shaft that can be adjusted to fit the user’s height or posture, making it suitable for a large number of people.

Another added feature is the 90-degree tilting shaft, which can change the direction of the cutting head to make it easy to reach hard areas. The edger also has a rubberized twin wheel to support and guide it.

A shared feature with the WG154 is the adjustable spacer guard, which helps in protecting plants you do not want to touch. This weed eater also has an adjustable handle for easy maneuvering. The trim diameter of the WG180 is 12 inches, which is typical of a cordless weed eater.

The product dimensions are 36.3 x 5.5 x 7.5 inches, while it weighs 8.2 pounds in total. After a full charge, the battery has a runtime of 1 hour up to 1 hr 20 mins, which is quite better than the WG154.

The product comes with a 3-year limited warranty, provided you register after buying, or 2-year warranty if you do not. In all, the product is a decent upgrade to the WG154.

  • Good battery life.
  • Strong cutting power.
  • Automatic line feed system.
  • Slow charge time; takes up to 6 hours till full charge.


The DEWALT DCST920B weed eater comes with two 20V MAX lithium-ion batteries, which are not included in the original package and are sold separately. The charger is sold separately too.

This brand has a brushless motor, which helps to ensure efficiency and durability. It also has a patented gear drive design, which offers the user more control over the cutting speed. This also helps to lengthen battery life.

The weed eater has a variable trigger with speed control, which allows you to set the speed between 0 – 4,600 RPM and higher till it gets to 6,000 RPM. The cutter has a dual 0.080-inch line with a bump feed. The cutting reach is 13 inches, which is good enough, allowing you to cover a large area within a short time.

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Though this brand is very light and compact, the engine is strong enough to power through the tough overgrowth. The engine also has a low noise feature, making it suitable for use in a sound-sensitive environment.

The patented gear drive design is a very peculiar feature as it provides more torque when cutting and also helps in maintaining the cutting speed while moving through weed.

The design is outstanding, as it is really balanced and easy to handle. The total weight, including the battery, is around 8.5 lbs, which is averagely sized and will not put much stress on the user.

The product dimensions are 35.6 x 10.8 x 12.5 inches. One thing I forgot to mention is that it also functions as an edger and a trimmer, allowing you to switch between the two options within seconds.

The product comes with a three-year limited warranty, which covers any defects arising as a result of faulty materials.

  • Strong cutting power.
  • An excellent gear system.
  • Good cutting reach.
  • Bump feed.
  • The shaft is not adjustable.
  • The battery and charger are sold separately.


This brand is the last one I’ll review and is one of the most reliable weed eaters on the market. The LST136 is a string trimmer/edger which comes with a 40V MAX battery. Like many other weed eaters I’ve reviewed, this brand can also switch from a string trimmer to an edger within seconds.

However, a peculiar feature of the BLACK DECKER is the Power Drive transmission, which assists in delivering more power to the cutting string from the engine; this helps to finish the job faster.

The 40V MAX battery has an impressive runtime, and it can last anywhere from an hour to two hours, depending on the cutting speed.

This is one of the weed eaters with the best batteries on the market. There is also a powerful command dial, which gives you the option to choose between running at maximum power or maximizing the battery power.

This is one of the most desirable features a weed eater can have as it allows you to either get the job done quicker or conserve energy.

The LST136 also has an automatic feed spool system to ensure the string stays on with no bumping required. The included components in the pack are: the LST 136 40V MAX, Lithium Cordless Trimmer/edger, One 40V MAX High-performance lithium-ion battery, One LBXR36, One LCS36 40C MAX Fast Charger, One AF 100 Spool, One Guard, and finally, One Auxiliary handle.

The product dimensions are 46.5 x 13.5 x 11 inches, while the product weighs around 7.8 pounds, which is of a light to average weight. This product is very suitable for basic yard work as the engine packs considerable power.

This brand comes with a full three year home use warranty which covers any quality or material defects.

  • Impressive battery capacity.
  • An innovative power command system.
  • Lightweight.
  • Problems with the automatic line feed system.
  • The shaft isn’t adjustable.

Best Battery-Powered Weed Eaters Buyer’s Guide


Now that we’ve come to the end of the review, there are still some things you should know to be sure you’re buying the best battery powered weed eater for you.

You might be easily swayed by the features and terms used in the review, but it’s essential to know what exactly you’re looking for, to get the most suitable device for you. Here are the vital things you should consider before buying a weed eater:

The Battery Power & Battery Life

This is one of the most important things to check before buying just any cordless weed eater. Though it’s nice to be finally free from using a gas-powered or corded weed eater, you still need to consider the battery capacity and battery life before buying one.

Many cordless weed eaters on the market have lithium-ion batteries, which usually have between 20 to 80 Volts of power, with around 25 minutes to 2 hours of runtime.

I’ll personally advise you to abandon any product with a single 20V battery unless you’re comfortable with taking a break to charge now and then. That said, you still need to consider the battery life carefully, as some products are more energy-efficient than others.

For example, a 40V battery might have a runtime of 1 hour for one brand while it may have less for another. It all depends on how energy efficient the product is. Just make sure you read the product manual carefully before buying.

A feature that adds to energy efficiency is the variable speed control. Some products have a variable speed control option, which gives you the chance to select different speeds based on what you’re cutting.

A feature like this helps the battery last longer. Look out for weed eaters that have this feature.

RPM/Cutting Power

RPM stands for revolutions per minute, and it refers to the number of revolutions the cutting string/line makes in a minute. The higher the revolutions per minute, the stronger the cutting power. High RPM weed eaters help to get the job done faster.

An average RPM should be around 4000 to 5000 RPM, anything below that is low and might only be useful for simple yard work.

6000 TO 7000+RPM weed cutters are considered very powerful and will get the job done even faster. However, the higher the RPM is, the more battery power is consumed.

Safety Features

This is another critical feature to consider before buying a battery-powered weed eater. There are many risks associated with using a weed eater due to the impressive speed at which it rotates, and how sharp the blades are, in some brands.

The lithium-ion battery can also be hazardous if not properly handled, as it carries the risk of explosion.

Therefore, before buying just any weed eater, check if the product has the necessary safety certifications, such as the UL certification and the Energy certification. Also, check if the parts have been labeled correctly in the user manual with instructions on how to assemble.

Some brands have additional safety features such as a spool guard to prevent contact with the debris, or an edger wheel to balance the trimmer/edger properly. Check the product carefully until you are satisfied before buying it.

Additional Features

There are many other features present in some products which can make the handling easier. For example, some brands have an automatic line feed system, which ensures there is a line on the brush head always, some with no bumping required.

Some brands also have a trimmer/edger combo, which makes the yard work easier and neater.

There are also some brands on the market that have a leaf blower feature, which is quite useful in cleaning the yard after cutting. Additional features like a battery indicator, a gear control system, or a cruise control system are things you should look out for.


This is also important. Some brands offer full warranty while some offer a limited warranty covering some particular defects over a while. Make sure the product has a good warranty before buying it.


It is essential to read the user manual and safety guide before you start using your weed eater. Though weed eaters are easy to use and handle, you might encounter some problems if you do not assemble the machine correctly.

How to Assemble

Read the user guide thoroughly before starting anything. You should check the diagrams illustrating how to assemble the parts before starting. Weed eaters have varying designs, so some parts may be peculiar to a product and have to be installed in a particular way.

Most weed eaters can be assembled within 5-10 minutes, but you may need a screwdriver for some models

After opening the package, the first thing after reading the user guide is to install the protective guard. Always remove the battery before installing the guard, or when you want to make any other adjustment.

After removing the battery, invert the string trimmer to enable you to access the trimmer head, if there are any screws, use a screwdriver to remove them from the trimmer head. Put the guard on the trimmer head and slide it till it fits appropriately. Align the screws and fasten them if there are any.

After this, align the front handle and make sure it balances properly on the upper portion of the trimmer section. Once it gets into a proper position, secure it with the fastening knob. If there are any attachments, screw or attach them to the powerhead and make sure it’s properly secured.

The next step is to check the cutting line. Most weed eaters come with a pre-installed cutting line, which saves you some time. Some models also have an automatic line feed, which makes it easier.

In case it doesn’t, cut the filament line to the required size and insert it into the eyelet on the cutting head. After adding the line, attach the spool cover to secure it properly.

Some brands have peculiar features, so you may need to read the user guide further to learn how to install additional attachments. After this, insert the battery while making sure it’s fully charged.

Final tip

To prevent damage to the line or brush head, scan through your yard for stones or objects that can damage the head. Also, make sure the weed or grass is not too thick for the machine to handle.

In Conclusion To

It’s been a ride, and we’ve finally reached the end. I hope you have found this article useful in helping you choose the best battery-powered weed eater for your use.

All the products reviewed are top-notch, and I hope you have a pleasant experience using them.

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Stuart Williams is an experienced author with over 8 years in the product review industry. Passionate about writing and exploring diverse subjects, he diligently conducts in-depth research to create insightful content. Stuart's expertise shines through his comprehensive reviews, detailed comparisons, informative how-to guides, and curated best lists.