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Best Battery Powered String Trimmers of 2022

Updated
Trim your grass without the hassle of cords and toxic fumes.

With many different types of string trimmers available, many people opt for a battery-powered option if they want something eco-friendly and easy to maneuver.

These are more affordable than gas options, don’t emit toxic fumes, and don’t come with annoying wires to work around.

We’ve researched various battery-powered string trimmers and chosen what we think are the best seven. Keep reading to find an awesome choice for your yard.
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Our Top Picks

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Model
Product Comparison Table
Features

Product Image of the SKIL PWR CORE 40 14-Inch Brushless 40V Lightweight String Trimmer Weed Wacker Kit with Twist Load Includes 2.5Ah Battery and Auto PWR JUMP Charger - LT4818-10
Best Battery Powered String Trimmer
SKIL CORE 40 Brushless String Trimmer Kit
  • Quick charging battery (60 minutes)
  • Twist load head mechanism
  • Variable speed trigger
Product Image of the DEWALT FLEXVOLT 60V MAX* String Trimmer, Brushless, Two Speed, 15-Inch, 3-Ah Battery (DCST970X1)
Most Powerful Battery Powered String Trimmer
DEWALT FLEXVOLT 60V MAX String Trimmer
  • Accepts various line sizes
  • Ergonomic design comes in handy
  • Powerful but quiet tool
Product Image of the Worx WG163 GT 3.0 20V PowerShare 12' Cordless String Trimmer & Edger (Battery & Charger Included)
Best Lightweight Battery Powered String Trimmer
WORX WG163 PowerShare Trimmer & Edger
  • Convenient command feed spool system
  • Comes with two versatile batteries
  • With 90-degree tilting head
Product Image of the Greenworks 40V Cordless String Trimmer and Leaf Blower Combo Kit, 2.0Ah Battery and Charger Included
Best Quiet Battery Powered String Trimmer
Greenworks G-MAX 40V Trimmer Blower Combo
  • Poweful 2-in-1 leaf blower
  • Weighing less than eight pounds
  • Equipped with a variable speed trigger
Product Image of the WORX WG170.3 20V Power Share GT Revolution 4.0Ah 12' Cordless String Trimmer (Batteries & Charger Included)
Best Versatile Battery Powered String Trimmer
WORX Revolution Grass Trimmer, Edger, Mini Mower
  • Handle can be put into seven positions
  • Uses a command feed technology
  • With a 90-degree pivoting head
Product Image of the BLACK+DECKER 40V Max Cordless Sweeper & String Trimmer Combo Kit (LCC340C)
Best Ergonomic Battery Powered String Trimmer
BLACK+DECKER Sweeper and String Trimmer
  • Versatile trimmer and edger combo kit
  • Automatically feeds the trimmer line
  • Shows the state of battery charge
Product Image of the BLACK+DECKER 40V MAX* String Trimmer / Edger, 13-Inch (LST140C)
Best Affordable Battery Powered String Trimmer
BLACK+DECKER 40V MAX String Trimmer
  • Equipped with power command dial
  • Uses power drive transmission
  • Converts from trimmer to edger


Product Reviews

Here are seven of the best battery powered string trimmers on the market.

1. SKIL CORE 40 Brushless String Trimmer Kit

Best Battery Powered String Trimmer

All of our recommendations are great for small yards, but if you definitely want something for your small yard, this is a great option. Just keep in mind that the things that make it good for a small yard mean that it’s not the best option for medium or large yards.

First, it’s a lightweight and compact option weighing 10 pounds. It’s quite narrow, so it’s easy to store and transport around your small yard. It also has a battery life of 35-45 minutes which is good for small yards.

We also love that it recharges in 60 minutes so that you can get back to work quickly.

What We Like

Well-Designed Battery

The quick-charging battery is convenient since you can get it back to 100 percent charge in 60 minutes. The battery is also wrapped in a cooling material which prolongs its overall lifespan by 25 percent.

Twist Load Head

This makes it super easy to load the line into the machine. Simply feed it in and twist it to get it started. This mechanism allows you to get to work quickly and efficiently.

Variable Speed Trigger

Put yourself in charge, thanks to the variable speed trigger. You can adjust the speed depending on the task at hand, giving you just the right amount of power where you need it.

What We Don't Like

Poorly Positioned Safety Lock

The safety lock is positioned between the variable speed trigger, so it’s easy to turn the lock off when you’re trying to change speeds. This is pretty inconvenient.

Product Specs

Battery Type 40v lithium-ion battery with cooling technology
Battery Life 35 minutes average
Cutting Swath 14 inches
Line Diameter Not specified
Weight 10 pounds

2. DEWALT FLEXVOLT 60V MAX String Trimmer

Most Powerful Battery Powered String Trimmer

Enjoy incredible power with this 60-volt string trimmer from Dewalt. This is three times the power of your average battery-powered string trimmer. If you want something more similarly powered to gas options, then this may be just the string trimmer for you and your yard.

If you have tough and thick growth in your yard, this is designed to get through it. Plus, it doubles as a lawn edger, making it a versatile tool for a reasonable price.

What We Like

Accepts Various Line Sizes

This string trimmer accepts 0.080-inch lines and 0.095-inch. With a variety of string sizes, you get a bit more versatility with the machine. This will come in handy for different jobs around the yard.

Lightweight and Ergonomic

At 12 pounds, this is light enough for most people to maneuver around their yard. But even if that sounds a bit heavy for you, the ergonomic design comes in handy.

It has a really awesome top handle as well as a D-shaped front handle with a comfort grip. This increases flexibility and maneuverability while decreasing stress and fatigue for users.

Quiet Noise Levels

Customers compared this to gas models but without the fumes and noise. So not only are you getting a powerful tool, but it’s also quiet. So you know your neighbors won’t come knocking on your door to tell you to keep the noise down!

What We Don't Like

Poor Head Design

Even some of the most satisfied customers disliked the head on this string trimmer. Many opted for a replacement head that they found made the machine much more quality.

The original head may not feed the line well. Customers found it difficult to open up and replace the string. Opting for a replacement head may be worth your time and money, too.

Product Specs

Battery Type 60v lithium-ion battery
Battery Life About 45 minutes
Cutting Swath 15 inches
Line Diameter 0.080 and 0.095 inches
Weight 12 pounds

3. WORX WG163 PowerShare Trimmer & Edger

Best Lightweight Battery Powered String Trimmer

At only six pounds, this is one of the lightest battery-powered string trimmers available. Even if you haven’t done a major arm workout at the gym lately, this should still be easy enough for most people to use.

We also love that this is a 2-in-1 device that converts from a string trimmer to a wheeled edger. Both trimmers and edgers are a must-have for many gardeners. To have them both in one tool is very handy.

What We Like

Instant Line Feed

The Command Feed spool system feeds you a line when you press a button. This puts you in charge of emitting the line feed as and when you need it, which is very practical. Plus, the tool comes with free spools for the duration of the product, so don’t worry about going through the line feed quickly.

Two Versatile Batteries

This comes with two batteries, so you always have a backup at the ready. Another awesome thing to note is that the included batteries are compatible with all other Worx PowerShare tools.

90-Degree Tilting Head

Equipped with a tilting head, this allows you to work on a hill or angled terrain. This also lets you get into hard-to-reach corners and narrow spaces since you have this extra flexibility.

What We Don't Like

Weak and Short Spool

You may want to upgrade to a better string. Although you get a string for life with this tool, customers found it wasn’t the highest quality. Plus, it’s easy to run through it quickly. This can interrupt your workflow.

Others found that the spool just didn’t hold the power they would expect, and it took longer to complete garden jobs.

Product Specs

Battery Type 2 20v MaxLithium batteries
Battery Life 20-30 minutes
Cutting Swath 12 inches
Line Diameter 0.065 inches
Weight 6 pounds

4. Greenworks G-MAX 40V Trimmer Blower Combo

Best Quiet Battery Powered String Trimmer

So far, there’s no completely silent string trimmer, but check back in a few years! For now, this is a nice and quiet option that won’t disturb the neighbors or make you want to chuck the tool across the yard.

Customers loved how quiet this was, especially compared to gas options. The manufacturer has actually disclosed that it’s 85 decibels which is equivalent to a busy restaurant or city traffic. So it’s not silent, but it’s not unbearable.

What We Like

Included Leaf Blower

For a fair price, you get both a string trimmer and a leaf blower. The leaf blower has an axial fan design which provides 110 MPH speeds and 390 CFM power. This is adequate for clearing tough and wet debris.

7.8 Pounds

This is one of the lighter battery-powered string trimmer options available. Weighing less than eight pounds, this is a breeze to use and maneuver around your yard. If you’re used to gas options, then this is going to be a significant upgrade.

Variable Speed Trigger

With this string trimmer, you’re in charge of the finer details. This comes with a variable speed trigger, so you can choose how much power you use depending on the task at hand. It also has cruise control so that you can set your preferred speed.

What We Don't Like

Short Battery Life

While the battery is advertised as lasting 45 minutes, many customers found that it lasted around 15 minutes, which is disappointing.

Manually Feeding Line

Some customers had a rage-fuelled relationship with the auto line feed feature. While it’s supposed to automatically feed line when you want it, some people found they had to do it manually. This was a major disadvantage and point of frustration for customers who experienced this.

Product Specs

Battery Type 40v lithium-ion battery
Battery Life Up to 45 minutes
Cutting Swath Not specified
Line Diameter 0.065 inches
Weight 7.8 pounds

5. WORX Revolution Grass Trimmer, Edger, Mini Mower

Best Versatile Battery Powered String Trimmer

If you want a string trimmer that can be more, check out the Worx Revolution option. It works as a string trimmer, an edger, and a mini lawnmower!

It’s pretty self-explanatory, but now you can also use it, with its in-line wheels, to make beautiful edges. Plus, it works like a mini lawn mower for when you need to tidy up small areas of grass you may have missed with your regular mower.

What We Like

Adjustable Front Handle

The D-shaped handle at the front can be put into seven different positions. This allows you to have more flexibility and control while using the tool. Overall, it’s a very ergonomic option that most people enjoy using, even for long periods of time.

Command Feed Technology

When you need a fresh line, all you need to do is press a button. The line will automatically extend, giving you what you need when you need it.

More Flexibility

As if the adjustable front handle wasn’t enough, this also comes with a telescoping shaft and a 90-degree pivoting head. Therefore you can adjust the machine to suit your height. Plus, the pivoting head gives you more flexibility when it comes to tight corners and narrow areas.

What We Don't Like

Takes Time

This may be a frustrating option if you have a large yard and not a lot of time. Customers found they had to go over the same spot a few times. On the other hand, the tool doesn’t cut large areas at once, so even if you don’t have to repeat the same spot, it can still take a while to get around the whole yard.

Could Be a Better Edger

Since this is not primarily an edger, some customers found that it wasn’t the best of the best. It was a little lackluster for some people, whereas others just found it quite difficult to use.

Product Specs

Battery Type 20v lithium-ion battery
Battery Life 20-40 minutes
Cutting Swath 12 inches
Line Diameter 0.065 inches
Weight 5.5 pounds

6. BLACK+DECKER Sweeper and String Trimmer

Best Ergonomic Battery Powered String Trimmer

A well-designed string trimmer can make it much easier for people to use, especially for long periods of time. You don’t want something that’s going to add stress and fatigue.

This one from Black + Decker is worth noting. For one, it’s pretty lightweight at 11 pounds. Secondly, it has a great top handle which provides a good grip. It then has a D-shaped handle at the front so you can hang onto that for extra control.

Finally, the shaft is adjustable so that you can change the height depending on your own height.

What We Like

Versatile Combo Kit

With this budget-friendly option, you’re getting a lot for your money’s worth. It converts from a trimmer to an edger making it a versatile 2-in-1 tool. But it also comes with a sweeper so you can clear debris and leaves from your yard.

Plus, this is powered up to 130 miles per hour which is pretty effective

Automatic Feed Spool

This trimmer will automatically and smoothly feed the trimmer line, so you don’t have to do so manually. This allows you to carry on with your yard work without interruptions.

Battery Level Visible

Take the guesswork out of when your battery is going to run out. Both the blower and the trimmer tool show the state of the battery charge. This allows you to plan and avoid getting stuck in frustrating situations.

What We Don't Like

Blower Not the Best

While it’s handy to have a blower included, it’s called a sweeper for a reason. It does act like a glorified broom and can’t really be compared to the best blowers on the market.

Cheap Spool Housing

The spool housing is made from cheap plastic. A few customers noted that the housing wore down and broke after about a year.

Product Specs

Battery Type 40v lithium-ion battery
Battery Life 45 minutes
Cutting Swath 13 inches
Line Diameter 0.065 inches
Weight 11 pounds

7. BLACK+DECKER 40V MAX String Trimmer

Best Affordable Battery Powered String Trimmer

Don’t break the bank if you don’t need to. You can still get a quality string trimmer for a very reasonable price. If you’re on a budget but still want one of the best, then check out this Black + Decker max string trimmer. Plus, it’s 40 volts, so it’s one of the more powerful options available!

Something To Note

The battery and charger are not included and must be purchased separately.

What We Like

Power Command Dial

If you don’t need to implement full power, you can change between MAX power and MAX runtime. Opting for max runtime will use less power but preserve battery life so you can go longer between charges.

Power Drive Transmission

As mentioned, this is a 40-volt string trimmer which is one of the more powerful options. But to be specific, it also uses Power Drive Transmission, which physically delivers extra power from the motor to the string. This gives you more oomph as you go around your yard.

Stringer Edger Combo

We can’t quite believe that for this price, you’re getting two tools in one. This converts from trimmer to edger, so you can use it for various tasks around the yard. And all for a super affordable price? Win-win!

What We Don't Like

Auto Feed Problems

Most customers had no issues with the auto-feed, but quite a few found that it either didn’t work at all or it fed the line too much.

Not the Most Durable

For the price, we don’t expect this to be super durable. But keep in mind that you may find this needs replacing every 2-3 years according to customers.

Product Specs

Battery Type 40v lithium-ion battery (not included)
Battery Life Up to 45 minutes
Cutting Swath 13 inches
Line Diameter Not specified
Weight 6.39 pounds

Product Comparison Chart

Product Best Battery Type Battery Life Cutting Swath Line Diameter Weight
SKIL CORE 40 Brushless String Trimmer Kit For Small Yards 40v lithium-ion, cooling technology 35 minutes average 14 inches Not specified 10 pounds
DEWALT FLEXVOLT 60V MAX String Trimmer Powerful 60v lithium-ion, cooling technology About 35 minutes 15 inches 0.080 and 0.095 inches 12 pounds
WORX WG163 PowerShare Trimmer & Edger Lightweight 2 20v MaxLithium batteries 20-30 minutes 12 inches 0.065 inches 6 pounds
Greenworks G-MAX 40V Trimmer Blower Combo Quiet 40v lithium-ion battery Up to 45 minutes Not specified 0.065 inches 7.8 pounds
WORX Revolution Grass Trimmer, Edger, Mini Mower Versatile 20v lithium-ion battery 20-40 minutes 12 inches 0.065 inches 5.5 pounds
BLACK+DECKER Sweeper and String Trimmer Ergonomic 40v lithium-ion battery 45 minutes 13 inches 0.065 inches 11 pounds
BLACK+DECKER 40V MAX String Trimmer Affordable 40v lithium-ion (not included) Up to 45 minutes 13 inches Not specified 6.39 pounds

What to Look For (Buying Guide)

What’s best for someone else may not be best for you. You should consider important criteria before making your final purchase.

Battery Capacity

Being battery-powered, one of the most important details you should consider is the battery itself. This includes:

  • Type: You’ll find both lithium-ion batteries and nickel-cadmium batteries. The lithium-iron ones are more powerful but more expensive. However, they hold charge for longer and are more durable overall.
  • Voltage: The power of cordless string trimmers is measured by its voltage. This is usually about 20 volts, but some go up to 60. If you want something stronger, look for a higher voltage number.
  • Battery life: The battery life varies from model to model. Some last as little as 30 minutes, whereas others last between 1-2 hours. Always check what the battery life is for the model you’re considering.
  • Recharge time: Consider how long it takes to recharge the battery. Knowing this in advance can help you prepare for your yard work.
  • Extra batteries: Check if the model you’re considering comes with extra batteries. It’s handy to have backup batteries just in case one dies while you’re in the middle of a job.

Cutting Swath

The cutting swath determines how wide the string trimmer’s head is. The wider this is, the more it will cut in one sweep. But some people prefer narrow ones if working in tight spaces. The average cutting swath varies from about 10-18 inches.

Line Diameter

The diameter of the string on the trimmer varies from about 0.065 to 0.110 inches. The higher this is, the better it is for thick and dense growth. Thinner line is suitable for thick work. Always check the line diameter and if the trimmer allows for a variety of line sizes.

Weight

Battery powered string trimmers range from about six pounds to 15 pounds, as per our research. The lighter it is, the more maneuverable it will be. Always make sure you choose something that will be comfortable for you to use and transport around your yard.

Attachment Friendly

Some string trimmers are compatible with various attachments. This allows the machine to be more versatile. For instance, you may find it can be converted into an edger or blower, depending on the brand. This can save you money and storage space.

Ergonomics

The comfort and ergonomics of the string trimmer are paramount. You should always take a good look at the handle to see if it looks like something you’ll enjoy using. We recommend looking at something that has a front handle as well as the top handle. This increases comfort and control.

You may also want one with an adjustable handle. This allows you to make changes to the tool’s height as you go. This is especially useful if various family members will be using the string trimmer. The ability to adjust the height means that this tool can be suited for everyone.

Last but not least, consider if the handle has a rubberized grip. This comfort grip can make it easier to use for long periods of time and reduce vibrations.

Noise

Most brands don’t disclose the decibel rating of their string trimmers, but you should definitely look at what other customers say about noise levels. If you have neighbors or sensitive hearing, you may want something a bit quieter.

Versatility

Some string trimmers aren’t attachment friendly but may still be convertible. For instance, you may find a few string trimmer edger combos, which are very handy!

Other trimmers have additional wheels making it easy to transport around. Some others come with additional tools such as blowers, saving you money and providing you with more handy tools to use around the yard.

Budget

Battery powered string trimmers come in a wide range of prices from about $60 to $300. Most are around $150, but you can certainly aim to find a quality option within your budget.


How To Maintain a Battery Powered Trimmer

When investing in any power tool, it’s important to know how to care for it, so it lasts for a long time. Here are our top tips for maintaining a battery-powered trimmer:

  1. Keep the battery charged. This can maintain the lifespan and health of the battery.
  2. Keep the batteries cool and dry. If they get too warm or are exposed to any moisture, they will become damaged.
  3. Store the tool and the battery properly. Keep the battery in a safe cushioned space, whether that’s in a separate bag or within the tool. As for the tool itself, keep it stored safely away from other things that could damage it.
  4. Use the right setting for the task at hand. If your trimmer has a variable speed trigger, for instance, make sure to use it properly to protect the motor.
  5. Replace the trimmer line as per the manufacturer’s instructions. This keeps the trimmer in good condition.
  6. Clean the cutting shield and the trimmer head on the regular. Look for wear and tear and replace any damaged parts as necessary.
  7. Brush off clippings and debris before storing to ensure the machine is in good condition.
  8. Let the string trimmer completely cool down before you store it. This prevents the engine from being hot for too long, which can lead to overheating issues.

Battery Powered String Trimmers FAQs

Are Battery Line Trimmers Any Good?

Battery-powered string trimmers are completely cordless, lightweight, and more affordable. They’re great for small yards and light-duty work. They’re also quiet and eco-friendly since they don’t emit toxic fumes.

However, you may find that they don’t get the job done in your large yard with dense growth since they’re not as powerful as gas. You may also find the battery life and recharge time are frustrating and don’t allow you to get around the yard in one charge.

It all depends on your yard size and the thickness of the growth you need to trim.

How Long Should a Battery-powered String Trimmer Last?

Since these trimmers haven’t been around that long, we don’t really know how they stand the test of time. A good guess would be about three years, but it may be longer or shorter depending on the quality of the model you choose.

Always check the warranty length for an idea of how long the brand will cover any repairs or maintenance necessary.

Which Is Better Battery or Gas Trimmer?

Gas trimmers are much more powerful and better suited to large yards. If you have thick growth, then you may want to opt for gas.

However, gas trimmers emit hazardous fumes into the environment. So if you do not need to choose a powerful gas option, a battery-powered option will be just fine.


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About the Author

Beth McCallum

Beth McCallum is a 20-something freelance writer & book blogger with a degree in creative writing, journalism and English literature. Beth firmly believes that a tidy house is a tidy mind. She is always looking for new ways to sustainably clean and tidy her house, that's kind on the environment but effective in the house, too!