Best Cordless Weed Eater in 2020

Top Rated Cordless Weed Eaters

When your living a busy life it is hard balancing everything and it is easy to noglect your yard as a result. Before you know it your turf is overgrown with thick brambles, bushes and grass.  The easiest way of removing them is with a weed eater, changing a job that would otherwise take days and convert it into an hour. To help you further I have reviewed and provided reports of our top most popular products complete with straight forward consumer manual.




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


  • 2 speed control
  • Cutting swathe 12 in
  • Wheeled edger
  • Easyfeed nylon line
BLACK+DECKER LST300 20V Lithium Trimmer Edger


  • Lightweight design
  • Trimmer and edger
  • Automatic spool feed
  • Cutting edge 12 in


  • Brushless motor
  • Variable trigger
  • Bump feed

Greenworks 14-Inch

  • Brushless motor
  • 14 in cutting swathe
  • Built in USB charger

Worx WG163 GT 3.0

  • Edger and trimmer
  • 12 in cut
  • Telescopic height adjustment

String trimmer also come in  handy when experiening those areas of the farm or landscape which are difficult to reach, whether because the ground is uneven, or because of limited space makeing the perfect piece of equipment essential.

These devices, know better known as weed eaters or weedwackers. In essence they are versatile and a useful tool to have on hand for any homeowner that we guarantee you will quickly become attached to and find many a job which becomes a lot easier because you have one.

Many areas of backyards are not suited for mowing, a weed trimmer can be invaluable. Source teamrupert

What Exactly is a Weed Eater?

So what exactly does this tool comprise? In simple terms it consists of a rotating motor on the end of a waist high shaft. Attached to the motor is a nylon cord which have a very high speed rotation forming an efficient cutting edge. The mechanics swing the head back and forth over the weeds or grass allowing the nylon cord blade to cut neatly. They are great for clearing weeds, some combo models don't just deweed but also have an inverted conversion to very effectively edge. Weed strimmers have been around for some time leading to many amazing solutions to expand  the wackers capabilities further than ever, we have tried to offer a mix of all kinds of combination s.

Battery or Gas Powered

There are essentially three methods of powering your weedwacker; electric, battery or gas / oil. We believe corded devices powered by electricity are no longer a practical option for many gardeners epecialy when there are so many new cordless options available. The wire is cumbersome, catches on things and makes working more difficult. For this reason we advance to cordless weed wacker models in our recommendations.

  • Corded models are the cheapest however the cost reflects its inconvenience.
  • The choice between gas or battery powered really comes down to the type of job you look to do. Gas weed trimmers are more robust and higher horsepower and can be running the longest between refill. Compared to most battery powered model that need to be charged, however some models provide a two lithium ion battery pack increasing runtime.
  • Typically a gas weed eater weighs around 10-12 pounds which is heavier vs their battery powered cousins. They are more loud too and it may be wise putting on ear defenders when operating them for longer periods to protect your ears.
  • Battery powered cordless weed eaters, although heavier than corded models are lighter, more manoeuvrable and quiet than gas powered equivalents.
  • When it comes to charging the battery powered weedwackers it is relitively inexpensive proccess, however if you buy gas weedeaters you have to add of to the total the prices of engine fuel  ( petrol, propane or gasoline ) which is alot more hassel and more expencive.
  • With a battery operated model a battery typically lasting around 30-40 minutes of use before requiring a recharge, more than enough to time to whack as much as you want in most backyards.

Ultimately your choice will come down to the purpose and kind of job you want the weeder for. A battery powered unit can be easily grabbed and used for 10 minutes before being put back on charge. A gas unit will clearly require higher maintenance, however if the job is a really big one a gas powered trimmer is probably your go-to option.

A cordless weed trimmer is versatile and useful. Image courtesy of qbidgroup


Please note that the battery for some of the battery powered devices is not always included and requires separate purchase. If you are on a budget then this needs confirming before you commit to buy as you will need to find a compatible battery before starting.


Weed eaters have a nylon blades operate at a very high rpm / hp and spin very fast. There is an obvious danger that anything coming into contact with the cutting edge will do some bad damage, including your skin. They do install a mini curved plastic safety shield which fences off and keeps most of the debris away but there is still a low probiblility of happening.

They also kick up a lot of debris around the cutting area which may get into your eyes can also be quite noisy. As an insurance consider getting some safety gear e.g safety goggles, ear defenders and good sturdy gloves and just generally take care. If you come across larger stems or branches maybe consider cutting them with a pole saw or chainsaw.

Bump or Automatic Feed

As the nylon cord cuts the grass and weed the edges starts to wears away so you need to replace it every soften to repair the cutter. Most devices feed the tool in one of two ways. Additional nylon cord can be thread automatically, or loading by self bumping the head of the trimmer against a flat surface, usually the floor.

Although an auto winding would appear at first to be a no-brainer, in reality the automatic rewind is not perfect and tend to over load the tool resulting in more wastage and can end up having to restring. In contrast, the bump threading takes a bit longer but the respool is more reliable and more efficient.


Most weedwhackers are not particularly heavy, but shoulder a backpack kit or straps are available for some models to help keep them operating effectively if you are doing commercial work or working for a longer period.

If you want your patio weedeated you may want to look at string trimmer extension accessories like steel wire brushes that brush away the tough weeds between your sidewalk tiles or where your home wall meets the floor. These small metal parts can be attached to the cutters increasing the projects you can do with your cutter.

Our Best Cordless Weed Eater Picks

Black and Decker LSTE523 Li-On String Trimmer

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

Black and Decker are a very well established manufacturer of a wide range of garden tools. They have a number of string trimmers, as well as reel mowers, leaf blower models, and edgers, but are in fact one of the most widely know weed eater brands. The orange and black LSTE523 is a great device that will manage most backyard trimming tasks with ease and is positioned at a good price point to make it affordable for almost every household.

It has an automatic wind line feeder activated at the push of button, feeding into a 12 inch precision cutting head. 12 inches is pretty standard for most residential trimmers. It has a 3.0 Amp, 20V Lithium battery which does come with it which provides a nice powerful clippers. The charge should last for anywhere between 30-40 minutes of use, which should be more than enough time to complete most domestic backyard strimmer tasks. If you are looking for a tool which handles much longer tasks then there are alternative models recommended next.

Should extra power be required for thickest weeds, the trimmer also has a two interchangable speeds to enable such cuts to be made without hassle.

The head has a built in wheel which allows the unit to be easily rotated via a handle on the shaft turning the trimmer into a neat little edging machine.

Finally, the height of the shaft can be adjusted to allow the user to test ther preference for a comfortable heldled position dependent on what's the shape and size of user.

Things we like

  • Black Decker is convertible trimmer and edger.
  • With a 20V Li-ion battery, get a prolonged cutting experience (30-40 minutes per charge).
  • It has the Powerdrive technology that enables the device to enhance its cutting ability for tougher cutting tasks.
  • You get the chance to alternate between speed levels: more power and extended time usage.
  • It has an adjustable handle and height for user comfort.
  • The Easyfeed feature allows a simple method of extending the cutting line from a button on the handle.

Things we don't like

  • None.

Our Verdict

Most domestic users of weed eaters are looking for a balance between affordability and capability when buying tools. We believe the Black and Decker LSTE523 trimmer is good quality tool that is well built and easy to use. The automatic line feeder means there is no issue with trying to keep the cutting line efficient, the edger wheel and the handle on the shaft means that it is easily and quickly converted into an edger. Finally, the tool is affordable and provides, in our opinion, great value for money. 

Black and Decker LST300 20V Lithium Trimmer Edger

BLACK+DECKER LST300 20V Lithium Trimmer Edger

The Black and Decker red LST300 is another model from the Black and Decker trimmer family. One difference to compare to our strongest product the LSTE523 essentially is it does not incorporate a built-in wheel to enable an easier walk and trim. However, the price point for the snippers is cheap and as a result it represents an reasonable balance between capability and price. Although being budget shears it can still pull off all the features you might expect from a good quality string trimmer.

It incorporates Black and Deckers Easyfeed automatic line feed spooling, operated from a button on the handle. The motor is powerful and capable of easily dealing with most backyard cutting jobs, whether it be trimming the edge of the lawn or weed wacking this cleaner can wrap is head around and remove any unwanted flower bed side growth. A handle on the shaft allows the head to be rotated to turn it into an edger, and doubles up as a height adjustment control.

The rechargable battery comes with the unit and can be expected to run for between 20-25 minutes dealing with most tasks while doing so.

The weight of the weed eater is 7 lbs making it slightly heavier than equivalent models and this may well be a factor for some to consider as extended use could become difficult.

Things we like

  • A good quality trimmer positioned at the value end of the price spectrum.
  • You can use it as both an edger and a trimmer.
  • 20-25 minute run time for each battery charge.

Things we don't like

  • Heavier than many rival models which can cause problems for some people although compared to a gas powered model it is still quite light.
  • Not really suitable for heavier clearance work.

Our Verdict

The LST300 is well made budget string trimmer that is more than capable of dealing with most domestic backyard weed clearance tasks. It is priced to be affordable for almost everyone and it is this fact coupled with its quality build, strong manufacturers warranty and good brand name that ensures this model making it onto our list of favorite weed eaters.

DeWALT DCST990H1 40V XR String Trimmer

DEWALT DCST970B Flexvolt 60V Max String Trimmer

DeWalt are synonymous with high quality professional tools, expert in both for the building tasks and in the garden. High mechanical and style quality is assured. This model delivers the biggest sizes of cutting swathes at 15 inch of all our ranked products, it's rating is near the higher end of domestic trimmers capable of easily dealing with domestic weed control.

Unlike the single Black and Decker models the cutting head has a double line. The multi line system makes it able to weedeat tougher cutting tasks both comfortably and with simplicity. The feed type is a bump spring feed which we found worked easily and reliably.

Being essentially a professional tool this is industrial grade trimmer heavier than many domestic only devices, weighing in at just shy of 14 lbs. If it were me, I wouldn't use it free held due to the weight, my preference would be to buy  a strap or harness to make it more portable and properly handled. The additional weight does make its use handheld as an edger more difficult, although it is still more than capable of dealing with most edging tasks like flower beds or fence edges with the right technique.

The motor is variable speed controlled by a pressure trigger behind the handle making it easily adapted to different outdoor cutting conditions from tall hedges along fields to a overgrown parkside bush.

Things we like

  • Dewalt DCST990H1 is a heavy-duty, powerful trimmer suitable for all cutting tasks.
  • Large 15 inch cutting swathe.
  • Allows the alternate use of 0.080 and 0.095 nylon cutting lines.
  • Comes with the brushless motor that ensures maximum usage of battery life and more extended service of motor.
  • Comes with a fast variable speed trigger that allows users to change between more power and prolonged use (Hi/Lo).

Things we don't like

  • Has a 14 lbs weight which can be tiring in the long run during prolonged heavy duty jobs.
  • Lacks a shoulder harness to help with fatigue that might follow from prolonged usage.
  • Though it can be used for edging, this device is not for edging.
  • String change can be a bit fiddly.
  • Hgh price point.

Our Verdict

There is no doubt that the DeWalt DCST990H1 cordless string trimmer is positioned at the highest end of the pricing spectrum. This is due to that the fact that this is a powerful, well built device capable of dealing with all types of cutting task in even the most difficult of conditions. In summary if you need an efficient tool capable of cutting a larger than the regular swathe for extended periods then this is the trimmer for you.

Greenworks 21362 14-Inch 40V Cordless String Trimmer

Greenworks 14-Inch 40V Cordless String Trimmer

The GreenWorks 21362 trimmer is a quality well-built tool more than capable of dealing with almost any trimming task you could throw at it. It has a high cutting swathe at 14 inches which together with its thicker 0.08 dual cutting line can deal very efficiently with large scale landscaping clearance.

The motor is brushless making it more reliable and quieter and it is also powerful. With some trimmer models you sacrifice some power when you choose to go cordless. Not with this Green works model which deals with all cutting tasks easily.

The line feed is the bump stringing type.

All of that would normally be enough to give it a recommendation, but the GreenWorks trimmer also offers the capabilty for gas attachments from other brands to be used with the motor, attachments such as cyclone blowers, cultivator heads, edging heads, hedge trimmers and a pole saw. This makes is an extremely versatile garden tool that is difficult for any serious gardener to overlook.

Things we like

  • It comes with an attachment feature which means that users of this device can utilize most of their gas trimmer add -ons on this instrument.
  • Brushless motor providing a longer-lasting battery life and a more reliable motor.
  • It has a 14” string dual line cutting swathe for a wider cut.
  • Battery provides as much as 1 hour of continuous use.

Things we don't like

  • The weight clocks in at 15 lbs so shoulder harness is recommended.

Our Verdict

The GreenWorks 14 inch cordless string trimmer is an excellent trimmer, capable of handling all domestic trimming tasks easily. It is more than that however, with the capability and build quality required for heavy duty clearance tasks too. But the attachment feature, the ability to swap out the trimmer and fit other cutting heads really sets this trimmer apart from other models and makes it a definite buy recommendation.

In fact, from all our cordless weed eater reviews, this GreenWorks 14-inch model would be our Best Buy pick.

Worx WG163 GT 3.0 20V Cordless Grass Trimmer Edger

Worx WG163 GT 3.0 20V Cordless Grass Trimmer Edger

The Worx WG163 trimmer is a great trimmer, perfect for backyard whacking tasks. It has a 12 inch spinning swathe which is perfect for most domestic cutting tasks, if not for more heavy duty jobs. It has a built in edging wheel which allows greater control when undertaking edging tasks, and by definition is capable of cutting and edging.

The tool is unusually lightweight, being only 5 lbs the lightest of the ratings. This makes it a particularly suitable trimmer option for someone not looking for a heavier, more unwieldy device.

Whats great about this tool is it comes with two batteries included, ensuring you don't to worry about how long  your backyard task is as it can be completed as you charge one battery while using the replacements if you start with the right step structure in place.

Things we like

  • It comes with two 20V Max Lithium battery power to make sure you get the best prolonged usage for larger task.
  • Built in edger wheel.
  • A fast trimmer head turner to make switching between the edger or weedeater capabilities quickly and easily.
  • A fast release trigger for height adjustment.
  • No discharge overtime while inactive.
  • The space guard is adjustable to ensure max protection while working both in edger mode and weed trimmer.
  • Very light; about 6 lbs.

Things we don't like

  • USers have had issues with their cartridge staying in.

Our Verdict

The Worx WG163 is a lightweight but versatile string trimmer that is more than capable of dealing with everyday trimming tasks. The second battery provided allows for extended usage and its light weight means that it is perfect for users with a smaller build.

Overall this Worx cordless weed eater is a solid option priced at a afforable price point making it a good choice for almost all gardening tasks.

Our Cordless Weed Eater Pick of the Five

Going through the five devices, selecting the one we prefer above the others where pretty operose for us at some point. Several of this weed eaters out beat the other with few margins and others which were super-cooler also had some setbacks.

Based on customization, power, usage time and handling, the Black and Decker LSSTE523 came out to be a fair choice, but the Greenwork 14” takes the prize it with its attachment features and ability to act as a debris clearer.

If you are looking for a trimmer that is great in the domestic environment but more than up to dealing with heavy duty clearance jobs then the Greenwork 14” is your best option and our overall best cordless weed eater.

Basis Upon Which Our Reviews Were Conducted

The goal of this review is to provide the best guide for those who want to purchase a wireless grass whacker.  To ensure our objectives are met, we tested these top products in the market for efficiency, comfort, versatility and durability.

Our findings were cross-referenced with online reviews and complaints from customers of these tools to arrive at our final position regarding the trimmers.  If your are cleaning your garden, we have range of garden tool reviews from a blue mower to power water and air washer to restore those white walls. We hope that your experience of these weed eaters is as described in this review and would appreciate your feedback if you find something that is inaccurate or misleading.

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