Best Battery Powered String Trimmer – Reviews, and Buyers Guide

Are you having a hard time reaching every nook and corner of your yard? A string trimmer can be helpful. Also known as weed whackers, they are commonly used to conclude the lawn care process by trimming off the remaining weeds after mowing.

As the name suggests, the string trimmers are equipped with monofilament lines to ensure a sharp and uniform cut to the weeds. After being worn out, the strings need manual replacements, which can be a frustrating job. The latest models come with the feature of automatic line feed or bump feed.

The operation revolves around the principle of centrifugal force. An extended line held out of the center makes a stiffer movement with the spinning of the hub to cut off the weeds.

It is equipped with a handle and a motor, and the lines can have an advantage over the blades that require sharpening from time to time.
The shopping website is over-flooded with a variety of battery-powered weed whackers. Scrolling through each of them to compare and shortlist the best ones can be a real challenge. We did that for you. Here we offer a list of best battery-powered line trimmers to help you in choosing.

10 Best Battery Powered String Trimmer


WORX WG163 String Timmer

The most attractive feature of this model is it comes with the GT feature that gives it the functionality of two tools. Convertible into a wheeled edger and back to a string trimmer in a matter of seconds, this trimmer is a money-saver model.

Another different feature of this model is that it allows a full 90-degree head tilts with 12 inches cutting diameter. This feature enables you to trim the awkward and tight spaces with ease or even the sloppy terrain. Equipped with an adjustable handle, it has seven ergonomic handle positions for a comfortable and secure grip on the trimmer.

Moreover, the model offers instantaneous line feeding functioning with just pushing a button to control the feed spool system. Additionally, it comes with free spools for life.

The adjustable guard of this model prevents the accidental trimming of the ornamental parts of your lawn. Your precious and beautiful flowers, plants, and lawn furniture can be protected while you are at your job.

Built with two 20V lithium sturdy and lightweight batteries, the trimmer comes with a 20V charger for rapid charging. You can quickly move with the straight lines and clean cuts with the rubberized steer wheel supporting and guiding the edger.

  • Lightweight
  • Have 90 degrees head tilt feature
  • Two in one model – trimmer and edger
  • Adjustable handles
  • Commendable feed system
  • Not suitable for heavy trimming
  • Poor battery life
  • Hard to adjust the shaft’s length

Makita XRU15PT1

Makita XRU15PT1 - Best Battery Powered String Trimmer

This battery-powered cordless model of string trimmer can be the best choice for those who want the pollution-free and low maintained product. Makita XRU15PT1 is equipped with two rapid-charging LXT batteries of 18V. This trimmer is very powerful with extended run time. The product offers additional batteries and basic tool kits with extra charges.

Comes with three options of speed control – low (3500 rpm), medium (5300 rpm), and high (6500 rpm) – you can optimize the power according to your requirements. To complement the ease, the trimmer is installed with automatic torque drive technology mode that automatically adjusts the speed with desired run time or added power.

Additionally, this trimmer is fabricated with Makita BL brushless motor to extend the running time with equal power and speed. The advantage of the brushless motor is it can be electronically regulated to increase the run time of the trimmer by 50% per battery charge.

To enjoy the same convenience as professional-grade trimmed, the Makita XRU15PT1 has anticlockwise rotation and employs standardized spindles (M10x1.25LH). For extra protection and improved performance of the trimmer, Makita offers extreme protection technology (XPT) and Star Protection technology.

  • Zero fumes emission
  • Makes low noise
  • Requires low maintenance
  • Fast charging
  • Light-weighted and comfortably balanced
  • Easy to assemble
  • Long battery life
  • Comes with speed controls
  • Only three option for speed, not variable
  • Slower make spins

Greenworks G-MAX STBA40B210

Greenworks G-MAX STBA40B210

Ending the tiring lawn caring session with an easy but powerful trimmer is what we want to give a fresh look to our lawn. This 12 inches cordless trimmer can be in your top choice list.

Being lightly weighted, the model maintains excellent balance during the session of trimming. To ensure an optimum balance, the GMAX 40V is furnished with a front mount motor.

The machine has variable speed adjusting features to trigger the power on demand. This product comes with an automatic feed system having a diameter of 0.065 dual-line feed. The trimmer provides a clean cut to the lawn grass. The automation system allows a smooth line forward movement.

It is furnished with a blower and string trimmer kit; these tools can be adjusted for controls and speeds. Besides, the blower has the specialties of 110mph & 390 MFM, which makes the blowing of leaves an easy peasy job.

For easy charging, the model is compatible with both 2.0Ah and 4.0Ah (sold separately) battery and comes with a fast charger. The supplied 2.0Ah charged requires 1hr of charging to run for 45 minutes and is best for ½ acre of yard.

  • Light-weighted
  • Easy to balance
  • Smooth operation
  • Less noise
  • Maneuverable
  • Have a battery life indicator
  • Blower is ephemeral
  • Troublesome to get replacement parts
  • Poor quality charger



This model is equipped with the innovative gear drive transmission technology, which provides an amplified torque while trimming through the overcrowded grasslands. The model is cordless with a 20V motor.

Equipped with a feed line of diameter 0.080 inches and having a swath width of 13 inches makes it one of the best choices for residential purposes. The machine has a trigger to shift to the low or high the required speeds. Moreover, the performance and runtime can also be manually adjusted to make it suitable for the running gear.

DEWALT DCST925M1 is a light weighted model that had an ergonomic and balanced design to offer a free movement of the operator in-charged.

  • Requires low maintenance
  • Generates less noise
  • Easy to assemble
  • Comfy to use
  • Light-weighted
  • The battery doesn’t last long
  • Have small clipping guard
  • Challenging to reload the string



This model comes kit full of essential tools like leaves collection bin, gloves, safety glasses, two replacement spools, extra 2.0 Ah battery, and a replacement spool cap. Provided with a high performing lithium-ion battery of 1.5 Ah 40 V, the machine can perform well.

For the easiness of the operator, the machine has a charge indicator to display the remaining power at all times. It is equipped with automated feed spool that feeds the trimmer line automatically with the requirement of bumping. The diameter of the string being 0.065 inches, the cutting process can be longer.

This trimmer also has the convertible features that allow it to transform into an edger in seconds. Provided with a guard and auxiliary handle, the use of the mower is effortless.

The power drive high-torque transmission feature makes the string movement powerful ith fast and clean cutting. DECKER LST140C comes with a limited period warranty of 3 years.

  • Light-weighted
  • Fairly powerful
  • Easy to start
  • Comes with an extra battery
  • Comes with a kit of essentials – gloves, protective glass, leaves collection bin
  • Short charging battery
  • The battery gets heated after use

RYOBI 40V X Expand

RYOBI 40V X Expand

This model earns a brownie point for trimming because it provides similar power like a gas trimmer without the headache of mixing oil and gas. It comes with attachment capacity to let you add extra tools as required, thus saving your money, space, and time.

RYOBI is featured with a 40V lithium-ion battery of high capacity and a charger. After fully charged, the trimmer can be utilized for 90 minutes. You can adjust the cutting width between 13 inches to 15 inches according to your requirements of extended run time or broader cutting tracks. Additionally, the trimmer has an adjustable speed trigger for controlled trimming.

The feed system is equipped with a premium of 0.080 inches of braided line and reel-easy bump feed line head offering quick and easy reloads. If your lawn size is within 1 acre, this model can be the best choice for you.

  • As powerful as a gas trimmer
  • Have adjustable speed trigger
  • Have attachment capacity
  • Featured with reel-easy bump feed line head
  • Takes 3 hours for complete charging
  • The handle is fit for an only right-handed person
  • The motor can get overheated



This model comes with a save mode that makes the motor of the trimmer to work efficiently, permitting you to amplify the run time. Moreover, to complement the efficiency and run time of the trimmer, the model is fitted with an innovative design of a brushless electric motor. This feature also extends the durability of the tool.

The telescopic shaft gives easy adjusting access to the shaft length to adjust it to a comfortable working position. This not only saves you from awkward working positions but also keeps you away from the after-effect of it. Also, the features make the transporting or handling of the gadget easier.

The model has a battery composition of 36.5V, which makes it reasonably powerful.

Ideal for trimming the lawn edges or tight spaces with tall grass, the trimmer has a generous cutting width of 14 inches. This length makes the swath cutting a lot easier and effortless.

Husqvarna comes with a sound pressure level of 77 Dbs. It holds a warranty if 2 years.

  • Adjustable shaft
  • Have energy saver mode
  • Produce low noise
  • Lightweight
  • Have good speed
  • May shut down after some uses
  • Lights keep flashing
  • The battery is difficult to charge


CRAFTSMAN CMCST910M1 Battery Powered String Trimmer

Perfect for using in the properties having noise limitations, this model is devised to generate minimum possible noise. The trimmer is equipped with the feed system for trimming a swath of 13 inches with a feed diameter of 0.080 inches. It gives a satisfying trim to the grass to put a perfect end to your lawing session.

Devised with gear drive transmission design to provide high constant speed and amplified torque without slipping, the trimmer runs flawlessly through the overgrowth. This 20V cordless string trimmer has speed controls offering variable speed adjustments. The variable trigger also extends controls, performance, and runtime management to give you the most suitable combination of functioning.

Designed light-weighted for ergonomic performance, the model is easy to balance and move with through the growths of your lawn.

Comes with a 4.0AH lithium-ion battery and a charger, the trimmer can be used for an hour before needing a recharge.

  • Easy to assemble
  • Offers effortless usage
  • Lightweight
  • Has useful bump string feature
  • Powerful
  • Short battery life
  • Small clipping guard
  • High trigger position

EGO Power+ Cordless trimmer

EGO Power+ Cordless trimmer

Another cordless trimmer offering the best power performance with convenience is the model of EGO Power+. Featured with dual feed twisted line having a diameter of 0.095 inches, this trimmer is well suited for medium-sized trimmer lawn in lesser time.

The exterior of the cordless trimmer is made weather-resistant to make it usable in any season. Moreover, the cordless features allow you to operate the trimmer without any movement limitation.

Equipped with a high-performance motor to extend the running time, it provides a variable speed to be adjusted by the operator. It has an extended aluminum shaft with an in-line grip to give a clean cut to the weeds.

The model has 56V lithium-ion batteries and an innovative brushless motor to deliver the same powerful performance as the gas trimmers. To offer a full width of trimming with the efficient results, the machine has 15 inches cutting swath with an elongated aluminum shaft.

  • Cordless trimmer
  • Satisfying battery capacity
  • Less vibrating
  • Superior balancing
  • Adjustable speed
  • Padded handle
  • Comes with a lever for easy removal of the battery
  • May stop working at low speed
  • Takes longer to start
  • Non-lasting product

PowerSmart PS76115A

PowerSmart PS76115A

This is a cordless string trimmer that comes with attachable kits of blower and edger. The model is fabricated with a powerful 20V lithium-ion battery with a battery capacity of 1.5Ah. It has a long life and required just 1 hour of charging to be used for your trimming purpose.

The trimmer is convertible into an edger with ease, which provides you a 2 in 1 gadget. Designed to be ultra light-weighted of just 6.2 pounds, this model keeps you miles away from fatigue. Having a cutting diameter of 10 inches and fitted with automated feed spool, PS76115A has a line diameter of 0.065 inches. The combination of this model can give a regular trimming to a small yard.

With a powerful 20V blower, which has a rotating speed of 113 mph, the model suitable for cleaning leaves, garage, porch, terrace, dust, and other spaces. It can also be used to blow away the snow if it is not too much

  • Comes with a powerful blower
  • Ultralight weighted
  • Comes with two batteries
  • Batteries can hold charge pretty well
  • Fast charging charger
  • Have shortcutting width

Buyer’s Guide for String Trimmer

The best and perfect trimmer can only be chosen when you are well-aware of the features that make a string trimmer a better tool. Below are the features that you must check out in your weed whacker before you draw out a decision.

Trim Width

The trim width determines the width of the lawn you can trim in one go. So, it also determines the time you need to achieve the end step of your lawn session. Usually, the battery-powered trimmers are equipped with 12 inches of trim width. This is the standard width of the trimmers and can give satisfactory performance for small lawns.

But if you have a high volume of grass to trim off, a 15 inches string trimmer will be a better choice for you.

Motor Power

When you want to find a string trimmer just to weed off the thin volume of unwanted straps of grass around your lawn’s perimeter, a medium powered motor will do. But that is not the case for trimming thick areas. Higher the workload, the more powerful should be the motor.

When you need to deal with a land crowded with grasses, a higher voltage motor engine will be a suitable selection.

‘Ah’ of the Battery

How long the trimmer will run before you need to have a plugin is determined by the “Ah” of the battery. It also depends on the level of toughness of the job you employ your trimmer for. If you need to cut off a few extras here and there by just pulling and releasing the trigger, the charge lasts long. However, when you need to run through a ground of tall and thick weeds, the battery can wear off faster.

So, a professional lawing team that trims large areas of land for hours after-hours needs a higher battery capacity with backups batteries.

Line Diameter

The more you trim, the faster the string gets wear off. After losing its sharpness, the line may break and needs to be reloaded, which interrupts the trimming. So, to stop the adding of extra time for changing lines, you need a string of thicker diameter.

The line diameter of the standard string trimmer is 0.080 inches is sufficient for residential yards while the professionals need something more than 0.095 inches.

Attachment Capacity

It is prevalent for the professional to own separate machines for the process of string trimming, to edge, and hedge trimming. But for the homeowners with small lawn to take care of, the budget can be sky-high.

The feature of attaching heads and tools interchangeably, starting from blowing to brush cutting, can save a lot of money.

Noise Generation

The most significant benefit of a string trimmer equipped with lithium-ion batteries is its potential to operate with less noise. This feature is more demanded by the owners who have to live within noise limitations.


Balancing can be a real factor in having a smooth and effortless trimming throughout the lawn.

Pushing a heavy trimmer makes you hold an awkward body posture throughout the session and can leave you with pain.

Most of the battery-powered string trimmers have an excellent balancing with the motor on the top of the tool. But few come with the engine placed above the shaft link, making it a little off-balanced.


The factor that most important affects the ease movement of a string trimmer is its weight. Even with the fastest speed and powerful motor, trimming a ¼ acre lawn cleanly takes 15 to 20 minutes. Drawing and pushing a heavy trimmer can suck all your energy.

So, while choosing a trimmer, you must go for the lightest weight model you can search for without compromising the quality of the motor.

Additional Feature: 90-degree Head Tilt

Most of the time, during trimming, it’s becoming challenging to reach places like under the deck of the house or close perimeters of the trees. The problem can be reduced with a trimmer offering a 90-degree head tilt.

In our list, we have WORX WG163, which offers the innovative feature of a 90-degree head tilt. It assists you in giving a clean trim even to those parts of the lawns, which is harder to reach or have tight spacing.

How to Maintain and Store your String Trimmer

To make your string trimmer a good performer and long-laster, a little maintenance is a must. Here is a list of things that you can do to store a well-maintained string trimmer seasons after seasons.

  • Before starting with the maintenance process, be sure to push the power button to the off position and disconnect the spark plug wire.
  • Based on your frequency of requirements, you can determine when to replace the trimmer lines. The process is comprised of simple steps- remove the disk, remove any string left behind and return a new line on the disk.
  • Wash the exterior once a season with a mixture of water and dish cleaner to remove the grease, dirt, and debris from the surface. The air filter also needs your attention at regular intervals and needs to be replaced depending upon the usage. Approximately, it can be replaced after every 90-days.
  • String trimmers can be easily stored because it doesn’t have cords to wrap or bundle. It can be hanged in vertical positions or kept down horizontally. But it would be best if you made sure that the storing space is cold and dry to prevent it from rusting and corrosion.

Advantages of Battery-powered String Trimmers Over Gas Trimmers

The gas trimmer is more powerful and convenient when you have a wide area to cover.

But if you are a great fan of pollution-free and less noisy equipment, a battery-powered string trimmer is the better option for you.

Mostly, battery-powered line trimmers are featured with an on and off switch, which can take an easy start off almost instantly when you pick them up. Moreover, they require pretty less maintenance compared to the gas one.

Because of its limited power, cordless line trimmers are more suitable for residential or small estate purposes. Moreover, it comes with the advantage of lightweight and reduced vibration features so that you can use them for an extended period without much fatigue.

If you go for a line trimmed activated by batteries, then it is a good idea to have a second battery as a backup. It allows you to work for a more extended session by connecting the second battery while the first one is charging.

Over to you

String trimmers can be a handy tool to give your lawn the best finishing touch. Having several advantages like lesser vibrations, adjustable shaft height, pollution-free, and others, the battery-powered string mowers are on more demand.

Saves you from excess fatigue and effort, unlike the gas string trimmer because of its innovative features, these trimmers are very easy to work with. To add to the benefits of easiness, these trimmers are lightweight and can be easily stored and maintained. So, even an older adult can take charge of giving his lawn a beautiful look.

Another feature that rocks the string trimmers is its attachment capability. Changing the heads and tools when required converting it into a different gadget is helpful. It does not only save you from buying too many tools but also keeps your pocket from getting a hole.

Ultimately, along with giving reviews for the best battery powered string trimmers, we also added the information that you need to know while choosing your trimmer.

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