Best Battery Powered Weed Eater

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Real talk: Maintaining your garden isn’t an easy job unless you enjoy doing the hard physical work. But it doesn’t have to be that way. You can use tools that give you the power and comfort to get a job done in the least time.

If you have a small to medium size yard, you should consider using a battery-powered weed whacker. Many residential users prefer this option as it’s more convenient and easier to use compared to a gas-powered weed eater where you have to deal with fuel, maintenance, noise, and pollution. 

Below, we’ll explain everything you need to know about the best battery powered weed eater and identify a few of our favorites. Read on to learn more, or just check out some of our quick picks if you’re in a hurry!

Quick Picks

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Battery-powered weed whacker with PowerDrive transmission to deliver more power from the motor to the cutting strings. Get the job done quickly.

Best Overall

WORX 12" Cordless Trimmer & Edger

WORX 12″ Cordless Trimmer & Edger
High-performance long-lasting battery-powered trimmer with innovative push-button command feed pool system. Get an extra battery and free spools for life.

Best Value

Earthwise 10-Inch Cordless Trimmer

Earthwise 10-Inch Cordless Trimmer
Reasonably priced powerful motor that delivers long run time and durability. It comes with a 10-inch cutting width with the auto-feed spooler.

Top Battery Powered Weed Eater





Our Top Pick

Worx 12″ cordless weed trimmer and edger are our top pick. It offers a powerful two 20 V batteries and an innovative push-button command feed spool system for instant line feeding. It’s designed for ease of use and is very lightweight. 

It’s great for residential use with small to medium size yards and comes with a free spool for life options. That means you don’t have to buy reels as you can order it directly from the Worx website and only pay a reasonable shipping fee. 

What is a Battery Powered Weed Eater?

The battery-powered weed eater is a lawn maintenance tool that helps you trim lawn and remove weed with ease. These are low-maintenance gardening tools to care for small yards.

The battery is the main strength and weakness of these tools. The battery allows it to be highly portable and move it around wherever you need a cut. But you have a limited run time as you need to charge batteries after a while. 

Due to the run time constraint, these are suitable for small to medium size yards. Otherwise, you can buy multiple batteries and let one battery charge while you use the other one. 

What to consider when buying Battery Powerd Weed Eater

Trimmer Line

Trimmer line comes in different sizes. You can choose nylon trimmer line that is flexible and long lasting.

Trimmer Head

The Bump feed trimmer head gives you more control and flexibility. You simply need to tap head to the ground to release a line. 

Rock Guard

A well-designed rock guard prevents any small debris or rocks to hit an object or person, improving safety. 

Have a question about buying a battery-powered weed eater? Contact us

The Five Best Battery Powered Weed Eaters

Below, we’ve identified a few of our favorite cordless trimmers on the market. One of these is sure to be an excellent match for your yard maintenance needs.

1. PowerSmart Cordless String Trimmer

Best Weed Whacker For Professionals

For those who are looking at a cordless string trimmer with a gas-powered performance, then the PowerSmart string trimmer will fit the need.

It’s a 2-in-1 gardening tool that can be quickly changed from trimmer to edger in seconds. You don’t have to buy an expensive separate gardening tool for edging as you can do both jobs with this tool.

It has a powerful 20 V Lithium-ion battery with a 1.5Ah battery capacity. It gets fully charged in an hour to get you started. You get approximately 30 minutes of run time with a fully charged battery. It’s a sufficient run time for a small to the medium-size yard.

At the heart of this trimming tool is the Automatic feed spool that feeds the trimmer line as needed. The high-quality and sturdier trimmer line can take care of overgrown weeds or thick grass quickly. You can use it for lawn maintenance without breaking a sweat.

It’s very lightweight as it weighs only 7.5 lb. This makes it highly portable, and you won’t get tired quickly. You can comfortably hold and move it around. It has a wide cutting diameter of 10 inches with a line diameter of 0.065 inches.

The highly energy-efficient motor gives you a no-load 8200 RPM for cleaner and quicker cutting. The build quality is very sturdy, and it has an extra-wide handle that provides excellent leverage.

It comes with a battery and a charger and two years of manufacturer warranty. The dual-functional design allows you to provide your lawn much needed care and very professional appearance.

See More Information about PowerSmart Cordless String Trimmer


  • 2-in-1 functionality of trimmer and edger
  • Light and well-balanced shaft
  • Powerful 20 V battery
  • Battery and charger included 


  • Not suitable for the heavy-duty job
  • The string can wear through quickly

2. BLACK+DECKER Weed Whacker

Hyper Tough Weed Eater For Everyday Use

Black & Decker is a well-established brand in the power tool category, and this weed whacker is no exception. It comes with a powerful 20 V battery that gives you 33% more run time.

It has a straight shaft design and PowerDrive transmission. It delivers more power from the motor to the cutting string to get the job done quickly. 

You get an additional battery that gives you unlimited run time. You can leave one battery on the charger while you use the other one. This eliminates the need to wait to get the battery charged, and there is no slowdown in the job.

The battery is compatible with other Black & Decker 20V Max lithium-ion cordless tools. This means you don’t have to buy batteries for other same brand power tools.

It’s a multifunctional 2-in-1 tool that can be easily converted from trimmer to edger in seconds. The automatic feed spooler works flawlessly and provides continuous trimming without needing to bump. It has a 0.065-inch line diameter and a 12-inch cutting swath.

You can easily adjust the handle and height as per your needs. It allows you to work more efficiently without getting tired quickly. On a fully charged battery, you get approximately 20 to 25 minutes of run time. That is sufficient to cover a small to medium size garden.

It comes with a limited size line string to get started, but you can order strings separately. This cordless weed trimmer comes with a 2-year manufacturer warranty. 

See More Information about BLACK+DECKER Weed Whacker


  • 20 V Lithium-ion battery with 33% more run time
  • 2-in-1 multifunctional design (trimmer and edger)
  • Lightweight design and adjustable handle
  • Automatic feed spool


  • Limited size string included
  • No shoulder straps

3. WORX 12″ Cordless String Trimmer & Edger

WORX 12″ Cordless String Trimmer & Edger

If you’re looking for a lightweight but powerful trimmer and edger, then Worx cordless string trimmer is the best choice. You can use it to work around your small to medium size yards to give them a clean and professional look.

The trimmer runs on a powerful 20 V Lithium-ion battery, and you get an additional battery when you buy this unit. Having a spare battery allows you to keep on trimming without worrying about the run time.

It has a push-button feed spool system for instant line feed. With this, you get a precise cut around the flower beds or lawn edges. The tool has a 12-inch cutting diameter and a sturdy spacer guard.

The space guard is made of high-quality material that protects the flowers and plants from accidental trimming. You can adjust the guard depending on your requirements.

It’s a very lightweight cordless trimmer and weighs less than 6 lbs. You can also tilt the head to full 90 degrees that allow you to trim in tight or uneven terrain.

You can also adjust the handle to a position that gives you the most comfortable gripping place. It reduces fatigue, and you can trim longer.

With this tool, you get a free spool for life. This means you don’t have to buy reel separately as you can order it through the company’s website and just pay the shipping.

The batteries are expected to last over 3 to 5 years on regular use, and it comes with a one-year warranty on the batteries.

Overall, this is a well build high-quality tool for any small to medium size yard. The free spool for life is a great perk, and in time the tool pays for itself by saving money on the spooler. 

See More Information about WORX Cordless String Trimmer & Edger


  • Powerful 20 V battery with an extra included battery
  • 90-degree head tilt angle
  • 2-in-1 conversion from trimmer to wheeled edger
  • Command feed spool system


  • Not suitable for commercial purposes
  • Small size safety guard

4. Earthwise 10″ Cordless String Trimmer

Lightweight Battery Operated Weed Eater

The Earthwise 10-inch cordless string trimmer is a high-quality trimmer to maintain your lawn in a well-curated trimmed condition all year. It has a powerful 20 V and 2 Ah lithium-ion battery to power the highly energy-efficient electric motor. 

You get a 10-inch cutting width with an auto-feed spool and includes a 0.065-inch nylon-string line. The large cutting diameter lets you clear a wider path in a single swipe and saves you time as you don’t have to go around multiple times.

This is a straight shaft trimmer with a telescopic pole and adjustable handle. The telescopic pole allows you to quickly adjust the length of the trimmer and get the size that lets you cut comfortably.

It has an ergonomic handle with a rubber grip. This gives you a comfortable hold while lifting and moving the tool without getting a sweaty palm.

The 180-degree rotating upper support handle allows you to adjust it as per your comfort. You get better leverage to hold and maneuver the trimmer and precise cut with better maneuverability.

You can also quickly flip down the edge guard for quick and easy edging around the sidewalks and driveways. It’s a reasonably priced cordless string trimmer and an excellent option for budget-conscious customers.

Overall, if you occasionally trim or have a small size yard, then you don’t need to buy a more robust and expensive string trimmer. 

It comes with a 2-year manufacturer warranty on the trimmer, and a 1-year warranty on the battery. This assures you that it will be fixed if anything goes wrong in the warranty period.

See More Information about Earthwise 10-inch cordless string trimmer


  • Reasonably priced
  • Lightweight and compact design
  • Long-lasting battery life
  • Adjustable handle and telescopic pole


  • Not suitable for tough jobs
  • The manual isn’t well written

5. Greenworks 12-Inch Cordless Weed Eater

Cordless Weed Eater For Residence

Greenworks has been in the power tool market for a while and has quickly built a reputation for providing quality tools at a reasonable price. This is a 24 V cordless string trimmer and edger that comes with a 2 Ah battery and a fast charger.

It has a lithium-ion battery that delivers high power and lasts longer on each charge. The manufacturer claims the battery to last up to 60 minutes in each charge, but in a real-life situation, you get approximately 20 to 45 minutes of run time. That’s a long enough run time to maintain any small to medium size yard.

Once fully discharged, it takes around 45 minutes to charge the battery. The charger is rated for 100 to 240 Volt AC input. That’s suitable to be used anywhere in the world.

If needed, you have the option to buy the extra battery. The battery delivers consistent power till it runs out of juice and you need to charge it again. The charger has a light indicator that shows you the charge level on the battery.

The adjustable guard is useful to protect accidentally chopping down flowers or plants. You can quickly turn the tool from trimming to edging mode without needing any tool. The unit operates smoother and produces far less noise compared to the gas-powered tool. 

It has a 12-inch cutting path that allows you to cut through weeds fast in a single run. It’s a decent size cutting path and is suitable for most residential yards.

If you need more power and cutting width, then you can consider a larger model with an 18-inch cutting path. But it’s a corded string trimmer

Overall, this is a very lightweight cordless string trimmer as it weighs only 8.8 lb and has a 0.065-inch single-line trimmer. 

As per weed eaters consumer reports, the auto line feed works usually, but sometimes you have to intervene manually. It’s not attachment compatible as you can’t remove the head from the tool.

See More Information about Greenworks 12-Inch Cordless Trimmer


  • Lightweight and portable 
  • Broad 12-inch cut path
  • Single line auto-feed reel 
  • Telescopic driveshaft


  • Bit expensive
  • Not attachment compatible
cordless weed whacker

What are the different types of weed eaters?

There are three main types of weed eaters: 

Gas Powered Weed Eater

The gas-powered weed eater is the most powerful, but they’re more cumbersome, noisy, and generate smoke.

But they’re sturdy and reliable, and many commercial landscapers prefer to use gas-powered weed eaters due to substantial run time and more cutting power.

The gas-powered weed eater is suitable for medium to large size yards and is mainly used by professional landscapers.

Corded Weed Eater

The corded weed eater uses electricity to power the motor that then spins the trimmer head. These are silent, lighter, and eco-friendly as it doesn’t generate any smoke when operating.

Many residential users with a smaller yard prefer this as it requires low maintenance and is easier to operate. 

Cordless Weed Eater

The cordless weed eater is the same as corded as both use electricity to operate. The main difference is the power source. The corded weed eater needs to be continuously connected to the power outlet, whereas the cordless weed eater has a battery.

The use of a battery allows you higher portability as you’re not restricted to the length of the cord. And there is no risk of getting any wire to get entangled. The cordless weed eater is suitable for small to medium size yards. 

Read More: 5 Best Weed Killer for Lawns in 2021: Safe and Effective in Any Yard

What are the pros and cons of battery-powered weed eater?

Here are some pros and cons of using the battery-powered weed eater:

  • Eco-friendly: The battery-powered weed eater doesn’t produce any harmful gas or smoke when in use.
  • Lightweight: The battery weed eater is lighter than gas-powered weed eater.
  • Low Noise: The electric motor in the weed eater generates far less noise than the gas weed eater.
  • Portable: These are portable and can be taken anywhere, unlike corded weed eater that’s restricted to the cord length and availability of the power outlet.
  • Low Maintenance: You don’t need to provide any extra care or maintenance for the battery weed eater.
  • Ease of Use: It’s straightforward to use as compared to the gas-powered weed eater. Once you insert the fully charged batteries, you can get started with a simple flip of a switch, whereas starting a gas weeder requires the exhausting effort to get started.


  • Limited Run Time: Due to the use of a rechargeable battery, the cutting time depends on the battery type and its capacity. Usually, you get around 30 minutes of run time.
  • Expensive: The battery is costly and needs replacement after some time.
  • Regular Charging: You always have to charge batteries before using them.
  • Limited Power: You get limited power delivery with the battery weed eater than using a conventional gas-powered weed eater.
Nicely Trimmed Lawn

How to choose the best battery weed eater

Here are some considerations when selecting a battery-powered weed eater.


The battery is one of the most critical components in the cordless weed eater. Fortunately, there has been a significant leap in battery technology that allows you to get near gas-like performance.

The power of the cordless weeder is rated in the volts (V). You can find a battery with a rating of 20 Volt to 40 Volts in the weed eater. You get more power with a higher-voltage battery, but it drains the juice faster. 

Another rating you will see is the ampere-hour (Ah). It tells you the power drawn by the electric motor of the tool. The excellent quality battery weed remover has from 1.5 to 5 Ah of power, and it will give you less than an hour of run time. 

The battery of the weed wacker can be based on the Ni-Cd or Lithium-ion material. The Ni-Cd batteries can be charged quickly but have a shorter life. 

These are efficient in power delivery that allow you to get the most power in each charge. These are usually cheaper and can give you around 40 minutes of run time when fully charged.

The modern weed removing tools contains far superior Lithium-Ion batteries that provide far greater power delivery and hold the charge longer. It takes less time to charge and gives you consistent performance. You should look for a Li-ion battery in the weed eater. 

Trimmer Line Size

The trimmer line comes in various sizes, and you should choose one depending on the grass and weeds you plan to remove.

Light-duty weeding: For a small lighter-duty cutting task, you can choose a trimmer line that is 0.065 inches to 0.080 inches thick.

Medium-duty weeding: For the medium-duty of cutting denser weeds, you can choose a trimmer line that is 0.085 inches to 0.105 inches thick. 

Heavy-duty weeding: Commercial landscapers most commonly use it. The trim line can be 0.110 inches or more in thickness.

The trimmer lines are usually made of plastic or nylon materials. The high-quality trim line is flexible and lasts several cuts before needing a change. 

Trimmer Head

There are three main types of trimmer heads:

Fixed Trimmer head: Fixed head trimmer head makes it easy in reloading. You won’t have to deal with a tangled line and allows you to install a new line quickly and easily.

Automatic Feed Trimmer Head: The automatic feed trimmer head automatically releases the trimmer line when needed. This reduces the need to change the trimmer line without stopping or slowing.

Bump Feed: The bump feed trimmer head gives you more control and reliability. When you need to extend the trimmer line, you gently tap the trimmer head on the ground to release the trimmer line. 

Weed Eater Shaft Types

Maintenance is often an afterthought process that people think about when buying gardening tools. One of the most frequent maintenance routines is changing the trimmer line. The maintenance requirements depend on the trimmer lines, such as single line or dual-line trimmers.

You can buy the trimmer line pool, or if you want to wind it yourself, then you can use a pre-wound spool or pre-cut lines. Always use high-quality approved replacement parts. 

The design of the shaft allows you to reach different spots on your lawn. There are several different types of shaft designs that you can choose from.

Here are the common shaft types you may find in the weed wacker:

Straight Shaft Design: This is the most common shaft design type. It allows you to get under the objects such as hedges and fences when cutting.

Curved Shaft: The curved shaft design allows you to move swiftly and comfortably around the long hedges, and you can get close to the fences without snapping the trimming line. 

Split Shaft: The split shaft allows you to change the tool and attach accessories to the weeder. 

Telescopic Shaft: The telescopic shaft allows you to adjust the length of the shaft without needing an attachment pole. You can slide the extension pole inside the tube and set the desired length of the shaft. 

Adjustable Handle

The adjustable handle allows you to change the length of the handle that fits comfortably in your hand while reaching the cutting target.

The wrong handle length may cause you to get tired quickly or become too uncomfortable to make smooth cuts. You should look for easy to open and close clasps to adjust the length of the handle. 

Rock Guard

The guard at the side prevents small debris, and rocks to fly off and hitting objects. 

A well-designed guard doesn’t crack or bend with the impact of the relentless flying rocks and can contain the maximum area. Getting hit by high-speed stones and debris can cause damage or injury.


Maintenance is often an afterthought process that people think about when buying gardening tools. One of the most frequent maintenance routines is changing the trimmer line. The maintenance requirements depend on the trimmer lines, such as single line or dual-line trimmers.

You can buy the trimmer line pool, or if you want to wind it yourself, then you can use a pre-wound spool or pre-cut lines. Always use high-quality approved replacement parts. 


The weight of the weed whacker matters a lot. Since you will be continuously lifting and moving around the weed eater, you should consider your comfort in holding the maximum weight for an extended period. 

Generally, the cordless weed whacker weighs less compared to the gas-powered weed eater. Most cordless weed eater often weighs 10 lb or less. 

But be cautious of the product quality as some manufacturers use lower quality build material that reduces the overall weight of the weed whacker but doesn’t make it last longer. 

The heavier cordless weed whacker may also be due to the use of old technology batteries, such as lead-acid. These older technology batteries are heavy but cost less. You may find these old technology batteries in the budget models.

You can buy the battery-operated weed whackers from online retailers like Amazon or buy it from a local store such as Home Depot, Walmart, and Lowe’s.

How does a weed eater work?

Weed eater has fast-spinning strings that become stiff when moved at high speed. This allows you to cut grass and weeds at ease. The use of a string line has several benefits as it allows you to cut without damaging the hard surface.

When you’re ready to use it, start by reading the instruction manual to familiarize yourself with the controls. It’s also vital that you know how to stop the trimmer line securely and disengage the controls quickly. 

Here is a video of how to use a weed eater to cut thick grass and weeds. It’s the gas-powered weed whacker, but the technique is the same as in battery-powered weed whacker. 

How long does a cordless weed eater last?

The run time of a cordless weed eater depends on the battery capacity and the type of job you’re doing. A 12 V battery in a cordless weed eater gives you 30 to 45 minutes of run time, a 24 V battery gives you 45 to 70 minutes of run time, and a 40 V battery gives you run time of 45 minutes to 90 minutes.

You should consider choosing the large-capacity battery to get a longer run time. Alternatively, you can have a spare battery that you put on a charge while you use the first battery. 

How to properly maintain cordless weed eater

An adequately maintained cordless weed eater lasts longer and made it safe when operating. Here are some tips for managing them properly.

  • Never remove, modify, or change the safety features of the unit. It may result in damage to the unit.
  • Remove the batteries when storing it for an extended period.
  • Clean the trim line and make sure it’s free from dirt and debris after finishing the job.
  • Keep the handle dry and clean it after each use. Don’t use solvent or detergents to clean the tool.
  • Don’t charge batteries in the rain, damp, or wet location. It reduces the risk of short-circuiting of batteries.
  • Remove or disconnect batteries before servicing and cleaning.
  • Use the battery only with the approved charger.

Precautions when using a weed whacker

A weed whacker has a fast-moving trimming line, and if not used carefully, it may cause injury or damage to the property. Here are some precautions you should take to use it safely.

  • Before starting the tool, inspect that there is no damage or cracks to the body. Make sure the battery is fitted correctly, and the trimming line is in good shape.
  • Be alert whenever you’re going to use it. Don’t operate the unit if you’re tired, ill, or under the influence of medicine or alcohol.
  • Check the guards and safety attachments are correctly installed before using the unit.
  • Don’t replace the cutting head with rigid or metal heads. Wear proper gear to protect the head, hands, and feet.
  • Inspect the area where you need to cut the weed. Remove rocks, broken glass, nail, or other objects that may become entangled with the trimmer line or get launched in the air.
  • Keep children and pets away when operating the unit (at least 50 feet).
  • Avoid accidental starting of the unit. Don’t keep your finger on the starting trigger.
  • Don’t overreach while cutting. Always maintain the proper balance and footing.
  • Take extra care when working on slopes, inclines, or working on stairs.
  • The battery can explode when subject to heat. Don’t place batteries near the open flame or a heater.
Cordless Weed Eater Review

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