Best Battery Powered String Trimmer Reviews

Have you been looking for the best battery powered string trimmer? 

Are you tired of maintaining your garden? Don’t worry; it’s normal, it’s a pretty tedious chore.

To keep your garden nice and tidy, sometimes a lot of maintenance is required. And sometimes, more often than what you would expect.

If you are a perfectionist, you might get easily irritated by that grass that grows in all the corners of your garden you can’t easily reach… but there’s probably a solution to this, and it’s called a string trimmer. And this is what we’re going to explore today.

First things first: what is a string trimmer ?

This is a piece of outdoor power equipment. It is called by various names like a weed eater, weed whip, whipper-snipper. The primary use of the tool is to go to spaces where your lawnmower can’t have access. These places can be hard to reach like the base of the mailbox, the base of a tree or under the fence that blocks your neighbour’s indiscreet view. A great benefit of this tool is that it can be helpful in getting rid of the thicker weed, cutting through the bushes etc. this can be done by switching out of the usual string to the blade attachment. With this, the machine turns into a multipurpose tool.

Now the next question that pops into the mind is “which one amongst all the trimmers in the market suits you the most?”. Technology has evolved with time. For example, some trimmers are interchangeable with different heads to suit different jobs better. Then there is a variety of trimmers that are used to clear the grass to create a passage. Some come with power variants like gas fuels, battery-powered and plugged in electricity. There are several criteria you can consider, including (see more comprehensive list at the end of this article):

  • Why do you need it?
  • How large is your yard?
  • How often will you use it?

So here I’ll be providing a list of the best cordless string trimmer, which will help you to choose the best one for your use. You no longer have to worry about the maintenance of your outdoor area because they are very efficient at their work and are relatively easy to work with. The string trimmer consists of a monofilament line in place of a blade which makes it extremely easy to cut the grass or the small weed. Spending on a good string trimmer or an electric string trimmer will be a great investment and cutting the grass might not be considered a chore anymore.

Let’s get started with the first one…

EGO Power+ 15-Inch 56-Volt Lithium-Ion Cordless Brushless String Trimmer – 2.0Ah Battery and Charger Kit

EGO Power+ 15-Inch 56-Volt Lithium-Ion Cordless Brushless String Trimmer - 2.0Ah Battery and Charger Kit

Ego 15 brushless string trimmer is considered to be one of the best battery powered string trimmer on the market. This 15-inch model has much more to offer than the 12-inch ego models. The three additional inches have added much to the cutting area. This model requires a little bit of more power to drive through the grass. Ego 15 comes with a 0.095 line. The line is dual feed for bigger momentum. Something that you will appreciate most likely, is that several speeds are available to better suit the jobs. This makes the ego 15 brushless string trimmer different from the other ones. 

The string trimmer comes with The POWER+ 56-Volt Lithium-Ion battery and a new, high-efficiency brushless motor delivers the performance of gas without the noise, fuss and fumes. The functioning of the handle is quite smooth. If we compare ego 15 with the ego 12, the retaining battery system, the trigger and the handle have been redesigned. This brushless string trimmer is super powerful and the front handle is ergonomic, which makes it easy to grasp onto. 

The battery is easy to remove (for recharging or changing purposes) thanks to a clever lever system. 

This time the packaging happens to be the best part. The ego 15 brushless string trimmer gets delivered to you folded in half. This makes it quite easy to assemble for use. The wiring of the string trimmer is covered by plastic over mold, which is quite thick and offers utmost protection. It can be re-folded again after use. 

The maximum speed provided by the ego 15 string trimmer is 5800 rpm and the run time is about 30 mins. The string trimmer is built with a sturdy plastic which makes it quite durable. The size is 39 x 13 x 5.2 inches and it weighs about 9 pounds.


  • Easy to clean
  • Powerful motor 
  • High-quality build 
  • 56 volt 2.0 Ah battery 
  • Easy to assemble 
  • Works smoothly 
  • Pro-oriented model 
  • Comfortable handle padding
  • Variable speed
  • Battery compatible with the ego power family tools
  • Size: 39 x 13 x 5.2 inches 
  • Weight: approx 9 pounds

EGO Power+ ST1521S 15-Inch String Trimmer with POWERLOAD and Carbon Fiber Split Shaft 2.5Ah Battery and Charger Included

EGO Power+ ST1521S 15-Inch String Trimmer with POWERLOAD and Carbon Fiber Split Shaft

Another great model delivered by Ego for grass trimming and the first self-winding trimmer. The main differentiating point of this power load string trimmer is the carbon fibre shaft. Stronger than any other plastic shaft on the market. 

The Patented 56V ARC Lithium battery technology includes innovative design, intelligent power management, and revolutionary cooling technology for incredible power and performance. The best part is that the carbon fibre shaft offers a lifetime warranty. The innovative idea of making a carbon fibre shaft is quite brilliant and as per the manufacturer, the carbon shaft is lighter than aluminium but stronger than steel. While you are running the ego power load string trimmer through your garden, you will hear a sound that is enough for you to make a judgement of where to stop. 

This string trimmer is worthy of being in the list of the best battery powered string trimmer. The cordless string trimmer comes with a dual-feed twist of 0.095” line. It offers a 15-inch cutting area. The cordless string trimmer’s brushless motor is powerful and works efficiently. With this, the manufacturer offers a five-year warranty on tools and a three-year warranty on the battery (check for updates). 

The string trimmer comes with the power load button which when pressed winds up the head and you’re back at work in seconds: you just feed the line and press the button. It also has a push-button for the go. The trimmer allows the variable speed control. The ego power load string trimmer is quite easy to use; you can trim the grass by walking casually without additional force. It is a product worth spending for.


  • 15-inch cutting area
  • Great for homeowners 
  • Easy to use
  • Easy to clean
  • Performed an effortless job 
  • Comes with a warranty
  • Lightweight shaft
  • Size: 71.7 x 12.6 x 9.8 inches
  • Weight: 12 pounds
  • Battery compatible with all Ego tools

WORX WG163 GT 3.0 20V PowerShare 12″ Cordless String Trimmer & Edger

WORX WG163 GT 3.0 20V PowerShare 12" Cordless String Trimmer & Edger

This string trimmer happens to be a convertible, which is amazing and gives you the sense of a two-in-one tool. It can be converted to an in-line wheeled edger in a few seconds. The head can also tilt up to 90 degrees.

The Worx cordless string trimmer comes with rubberised wheels which are known for supporting and guiding the edger in order to provide cleaner cords and straighter lines. It has a spacer guard placed on edge which is used to prevent reaching any sensitive item like  plants or too hard like a stone wall or garden ornaments and damaging them while you are trimming the garden. The trimmer is flipped over when you tend to get very close to an object. This string trimmer is fantastic to work in between the trees and bushes as well. 

This cordless string trimmer comes with 2 powerful and lightweight 20V Power Share MaxLithium batteries. The total cutting area which is provided by the trimmer is of 12 inches. The maximum speed offered by this cordless string trimmer is 7600 rpm. For instant line feeding, there’s an innovative push button that you can simply push to feed the line further. 

The string trimmer is professionally used by the landscaping crews. The cutting line of 0.065 inches is uniquely designed for DNA two double helix aerodynamic trimmer strings. It comes in a differently oval shape which helps in cutting the grass much faster and by putting in less force. It has a powerful motor. 

This cordless trimmer comes with a telescopic shaft which allows the user to set the handle according to their height and helps them to work in a comfortable posture. It is also quite light, for better maneuverability. The handle of the string trimmer is quite adjustable as it has a D-grip which can be rotated in different directions. This trimmer will make your experience of beautifying your garden much more effortless and less time-consuming. You will not regret spending money on WORX WG163 GT 3.0 20V PowerShare 12″ Cordless String Trimmer & Edger.


  • Budget-friendly 
  • D-grip handle
  • The maximum speed is 7600 rpm
  • Max lithium battery
  • Convertible into an edger
  • 12-inch cutting area 
  • Digital command
  • Automatic feeding

Greenworks 12-Inch 24V Cordless String Trimmer/Edger, 2.0 AH Battery Included 21342

Greenworks 24v battery powered string trimmer

Greenworks 12-Inch 24V Cordless String Trimmer/Edger is a perfect choice for a homeowner who has a huge garden to maintain. This cordless string trimmer comes with a lithium-ion battery. This string trimmer can be switched to an edger, which comes along a wheel and three different pivoting position head. 

The best part about Greenworks 12-Inch 24V Cordless String Trimmer/Edger is that its battery is used for more than 20 tools which are operated for outdoor and indoor use. The cutting area provided by the GreenWorks cordless string trimmer is of 12 inches, it is extremely easy and quick to use. The three positions pivoting head allows you to trim at different angles without any hindrance, even in difficult areas . 

The product comes with the limited warranty on the tools and the battery for three years. The length of the shaft is 40 inches and there is a compatible replacement spool. This cordless string trimmer has a telescoping shaft. The product comes along with a charger and a battery. The string trimmer/edger has an electric start which eradicates all the hassle you need to do with the ones with gas. The electric start also prevents the string trimmer from releasing any harmful fumes. 

Greenworks happens to be one of the leading companies who produce the battery-powered power tools which are professionally used for landscaping and DIY customers. They are one of the best companies who provide various powerful tools. It’s a beloved tool by many and is meant to be able to handle the toughest field grass. The battery of the string trimmer is interchangeable and substantial. Greenworks 12-Inch 24V Cordless String Trimmer/Edger can be considered a great option in the list of best cordless edger trimmers. 


  • 12-inch cutting area 
  • Lithium-ion battery 
  • The battery is fade-free 
  • Has an electric start
  • Telescopic shaft
  • Adjustable handle 
  • Three-position pivoting head
  • Size:30.25 x 7.5 x 9.25 inches
  • Weight: approx 9 pounds

BLACK+DECKER LSTE523 Li-On String Trimmer

BLACK+DECKER LSTE523 Li-On String Trimmer

You’ll be delighted to know that the black decker string trimmer can get converted into a wheeled edger. The black decker comes with a line diameter of 0.065 inches. This cordless string trimmer comes with a battery of 20 V; the nominal voltage is 18 V. The trimmer provides a power driver transmission in order to increase the torque. 

This trimmer comes with the Easyfeed technology, which helps you to feed the line to the trimmer easily without bumping.. The unit has an extended runtime lithium battery. Black decker comes with a charger, one guard and an AFS spool. The cutting area provided by the trimmer is 12 inches. The handle of the trimmer is adjustable, and you can adjust the handle according to your height. 

The weight of the trimmer is 6.3 lb. BLACK+DECKER LSTE523 Li-On String Trimmer is very lightweight, and it can be used without gasoline or any extensions of wires as it’s battery powered. The trimmer can very easily be converted with a simple twist and pull. 


  • Power drive transmission for increased torque
  • Easy feed for advancing line
  • 20 V battery
  • Easily convertible
  • Easy to maintain
  • Easy to clean
  • Lightweight
  • Works well around the edges flower beds in borders
  • Comes with the guard
  • Size: 9.25 x 41.33 x 5.74 inches
  • Weight: 6.3 pounds
  • Power boost or extend run time

Buyer’s Guide

There are numerous ways to impress the guests who are coming to your house for the first time or we can say who love to come to your house. The list is quite big, but I would limit it to certain essential things like: 

  • The warmth with which you welcome your guests.
  • The food that is served.
  • The crockery that is used for serving the food.
  • The overall ambience of the house, especially the entrance.

All of these things are very important. It is said that the entrance of the house tells or speaks out what kind of welcome you will get. And the entrance includes the lawn. The moment you open the gate, the first thing you notice is the well-kept lawn without even a single bad weed, a beautiful landscaping and a neat, clean brick pavers driveway . For the look of a professionally groomed and well-maintained landscape, we don’t need so many things. We can do wonders with a single tool, and that is a perfect string trimmer. It is a magical tool to make your lawn a fairy landscape.

So basically a string trimmer is used for the areas that a mower can’t reach easily. Now with the new technology, the simple gadget has taken a whole new dimension. It makes the job of maintaining the loan, garden or the yard a lot easier. You can have two types of trimmers, one with a plastic string and the other with a blade. 

In order for you to pick the right tool to trim your grass, we have come up with a specific buyer’s guide that will help you in this task. After all, string trimmers could be worth a couple of hundreds dollars, so you might want to make sure you get the best tool for you.

These are the criterias to look out for:


This is one of the main factors before buying the string trimmer. You need to have a look at the market and set up a realistic budget for this purpose. A fair price bracket would be between 100 usd and 300 usd.  If the trimmer which you want to buy is out of your budget, you shouldn’t include it in your options. What do you want is to get the most of your money. For example, if a cordless string trimmer is battery-powered, make sure you buy one which includes the charger as well as the battery. If it does not have a charger, then you will have to spend more money, and that is apparently not the right choice. Before buying the string trimmer, always compare the price of the different trimmers. Look for the trimmer, which is easy to handle and easy to use and does not put an extra load on your pocket.

Is your yard small or big?

The size of your yard is a pretty important factor to take into consideration. This will determine the size and trimming capacity of the unit you will opt for (the bigger, the more time you will save while doing this chore) and the run time. As we saw, some manufacturers offer 15’’ trimmers, some might be offering even bigger, but most of the units have a standard size of 12”. You need to see which suits you best. As for the run time, a good solid battery is a must-have; you could expect usually 30-45 mins. If the model you’re coveting offers less than this amount of time, you might find yourself out of power before fully finishing trimming the grass. Not ideal.

Beginner or an expert

This is not a crucial concern before buying a cordless battery-powered string trimmer; however, if it’s the first time that you’re getting one; get something that is easy to handle, lightweight and fairly powerful. It’s best to start small and grow up big rather than having an overpowerful tool that is meant for professional gardeners and that you can’t operate. If you are an expert in maintaining your yard, then probably you already own some type of tool from the major manufactures, in this case, if you already are a fan of the brand, you should buy into the same brand as most of them have the same somer interchangeable batteries that fit all the tools in a specific range.


The maintenance is close to nonexistent for these tools. Just make sure to clean them after use, change the line when needed with a suitable line replacement and store them preferably in an area protected from potential rain.

Things you need to consider on the basis of the machinery


Better to check if the cordless electric string trimmer has enough running time and what is the power of the battery. Also, the type of battery: the new generation lithium-ion battery gives more power and efficiency. Bear in mind that if the yard is very big, you might need an extra battery in order to avoid runout time. 


Always go for that trimmer which you can handle easily and that is not too bulky or heavy for you. Usually, they are fairly lightweight, but some models are specially known for that, so if you have back problems or are not very strong, be sure to check out the weight of the trimmer. If you’re a senior, there are ways to make gardening easier.

Balance and size

The manufacturers do usually think of this and it’s rare to see a weed trimmer that does not have an adjustable handle. This being said, you should always check this feature and make sure it’s there. In order to operate the tool properly, a good balance has to be achieved. This will also avoid any potential back issue or misuse. 


While using string trimmer, always use gloves, protective eyewear, wear long pants and boots. There is no doubt that the trimmers have a shield to deflect the debris, but precaution is a must. The string trimmer can easily break through the skin and send the debris flying while cutting. Many models offer a cutting guard to some extent and limit the trim range and protect the plantings. 


A big benefit of electric trimmers is that the noise is way less important compared to the classic, old-school gas trimmers. If you are sensitive though, we would suggest to use ear defenders. 

Easy feeding and loading

Always check before buying, how easy it is to feed and load the replacement string. Some models offer free string refills for life, but usually, it’s up to you to purchase the needed recharges. So always follow manufacturer’s instructions regarding the type and size of strings to get. Some of the models on the market, and reviewed here above, offer some nice features like self-loading trimmer, or feeding the line via a simple button. If loading the line is something that puts your patience to proof, then one of these models might be the best option for you.

Low vibration

The gas-powered trimmer produces vibrations while in use, but most of them won’t really be noticeable or will be mild. If you are worried by this aspect, better having a close eye on the battery, as, eventually, the battery is what will determine the power and the potential vibration


We hope that this article helped you understand better what a cordless, battery-powered, string trimmer is, what it is used for, what are the main models available on the market and how to pick the best for you.

In general, those power tools are a real help in the maintenance of your garden, and even if you already own a lawn mower, a string line trimmer will be a nice addition to your tools and will help you with the finishing touches and reaching the places where your mower can’t go. It can be particularly helpful for the grass that grows in shade under trees, which usually needs more gentle and higher cutting height

Battery powered trimmers are practical, convenient, easy to use and really affordable tools that will make your grass cutting experience way less demanding that it was until now. Do not hesitate to get your own tool, and for that, we hope that our extensive buyer’s guide will assist you in this fun purchase.