Battery weed eaters are now a popular tool of choice for most professional gardeners and homeowners due recent improvements in cordless electric weed eaters. However, finding a good one can be easier said than done, with so many different makes and models available.
We have assembled a list of some of the best battery weed eaters we could find online and given each a rating out of 5 based on the feedback from owners.
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The Best Battery-Powered Weed Eaters
Last update on 2021-09-29 / Affiliate links / Images from Amazon Product Advertising API
BLACK+DECKER 60V MAX Battery Weed Eater
The BLACK+DECKER 60V MAX Cordless String Trimmer/Edger is the perfect tool for keeping your lawn looking neat and tidy. With a dual-speed control, you can choose between low and high speeds to match different cutting needs. The power drive high-torque transmission ensures that you have enough power to tackle tough weeds and grasses, while the dual 0.080″ line easyfeed allows you to quickly change out the trimmer line when needed. The 3 Year limited warranty protects against any defects or product damage.
WORX WG163 GT 3.0 20V PowerShare Battery String Trimmer
The WORX WG163 GT 3.0 20V PowerShare battery weed eater is a 2 in 1 tool that can be used as an edger or trimmer and is powered by the patented Command Feed line system for instant line feeding. This lightweight, cordless weed eater offers up to 30 minutes of running time on a single charge and comes with two 20-volt lithium batteries so you’ll have the power you need when you need it. The WORX 20V PowerShare battery weed eater also features an innovative spool design that allows users to easily add more string trimmer line when needed.
BLACK+DECKER 20V MAX Battery-Powered Trimmer
The BLACK+DECKER 20V MAX Lithium Ion String Trimmer converts from trimmer to wheeled edger with the push of a button. The power drive transmission provides increased torque for improved cutting performance and it features 2-speed control that allows you to choose between maximum power or high runtime. It also has an EasyFeed spool system that allows you to advance your line with the push of a button without bumping. This product is backed by a 5 year limited warranty.
Greenworks 40V 13-Inch Cordless String Trimmer/Edger
The greenworks 40V Cordless String Trimmer/Edger is a gas free battery designed model that eliminates the gas hassle while getting the job done. It comes with a 4 position pivoting head and edging wheel for you to trim your lawn or edge it in one go. The trimmer is lightweight and maneuverable, so you can easily get into tight spaces without straining yourself. A battery and charger included which allows up to 60 minutes of battery time.
DEWALT 20V Battery Trimmer
The DEWALT 20V Battery String Trimmer is a great tool for keeping your lawn looking its best. This unit features a brushless motor that maximizes motor efficiency and durability. It has a dual 0.080″ line with bump feed, 13-inch cutting swath, variable trigger with speed control and patented gear drive design. This unit includes a 20V Lithium-Ion Battery along with a charger. The precise power control of this trimmer makes it easy to use and the dual line allows you to get the job done faster than ever before!
Makita XRU04Z Cordless String Trimmer
Makita’s XRU04Z 18-Volt LXT Lithium-Ion Cordless String Trimmer offers the power and performance of a gas trimmer without the hassle. The powerful Makita 4.0 Ah lithium-ion battery delivers up to 50% longer run time per charge than the previous model, with three speed options for maximum versatility. The automatic torque drive transmission provides increased ease of use, while the 15″ cutting swath enables faster trimming and edging. This string trimmer also features a bump feed head that releases string from the spool so you have a line with which you can cut down debris.
RYOBI 40-Volt Lithium-Ion Cordless Weed Eater
The RYOBI Cordless weed eater is a good choice for your garden. It has got an impressive 15 inch cutting width, so it is enough to cut grass in your yard of up to 1-acre. The battery can last up to 90 minutes, and you can also use it as an edger.
The RYOBI 40V weed eater is designed with expand-it attachment capabilities that enable users to utilize the power of other RYOBI tools like blowers or hedge trimmers without having to purchase another tool. Users can spend less time reloading string with the ‘real-easy’ bump feed string head.
EGO Power+ ST1502SA Battery-Operated Weed Eater
The EGO Power+ 15-inch String Trimmer is a lightweight, easy to use and powerful tool that delivers professional results. It features a rapid reload head that allows you to quickly and easily load cutting line, while the dual feed spiral-twist 0.095-inch line ensures reliable feeding for maximum performance. Variable speed control lets you choose your ideal RPMs without having to change tools. A weather-resistant construction means this trimmer can stand up against harsh conditions, no matter what time of the year it is.
WORX WG154 20V PowerShare Cordless String Trimmer & Edger
The WORX WG154 cordless weed eater is a lightweight, easy-to-use trimmer that converts easily to an edger in seconds. The trimmer features a powerful 20-volt lithium-ion battery for longer run time and greater power. The automatic single line feed spool makes it simple to change the cutting path from trimming to edging with no bumping or winding required. The trimmer features a retractable flower guard that protects your flowers from being cut.
Greenworks 24V 12-inch String Trimmer / Edger
Greenworks 12-inch battery weed eater is ideal for tackling tough jobs around the home. It features a powerful 12-amp motor and a pivoting head that adjusts to any angle, allowing you to edge and trim with ease. The edging wheel allows you to easily edge sidewalks, driveways and more. Plus, it has a wrap-around handle for added comfort while working. This Greenworks string trimmer includes an auto feed spool with .065 single line that provides up to 25 minutes of run time per charge.
In terms of convenience, there is nothing quite as adept as the battery powered weed eater. With the freedom to move around the garden without restraint and a lightweight design, more and more gardeners are turning to this type of tool.
What To Look For In An Electric Weed Eater
While many people are discovering the freedom and ease of use of the battery weed eater there is still a lot that many buyers aren’t sure about. It would be easy to turn up at a store or browse online and select the first battery powered string trimmer that you come across, but the risk is that you might end up with something that doesn’t quite meet your expectations. Before committing to any particular battery powered trimmer model, keep in mind the following points.
As a rule of thumb, cordless weed wackers are always much lighter than other types, especially when you compare them to petrol tools. A lightweight weed eater is going to give you a much more comfortable user experience, especially if you are going to be using the tool for a lengthy period.
It is important to ensure that you aren’t compromising durability just to get a lightweight weed wacker but in the main, you can expect pretty decent quality from most of the well-known brands.
If you find that the weed eater feels a little heavier than you would like, it is entirely feasible to attach a strap. In fact, some of the best weed eaters come with this feature as standard.
Without power, you aren’t going to be able to do a very good job. Some of the best lightweight weed wackers will put out incredible amounts of power that are comparable to their gas powered equivalents but it is essential to look at this before you make a decision on whether you will purchase a tool.
Typically, a weed eater will be either 20v or 40v. It goes without saying that the latter will produce more power but you’ll also notice that this has an adverse effect on the running time. However, the good news is that many manufacturers offer spare batteries so you can have one charging while the other is in use. With rapid charging systems, you’ll never be left short.
Free Reloading Features
The frequency that you will need to replace your trimmer string will depend on the type of string you are using. When you use a thicker line, you will notice that this needs to be replaced far less often than when you opt for a thin trimmer line.
Regardless of the type of weed eater feed line you have chosen, there are various methods to replacing it. Which you choose will vastly depend on your personal preference, but it is important to understand each type.
Bump head weed eaters are one of the most convenient types and are favoured by many gardeners for this reason. When the line needs replacing, the user simply knocks or bumps the head on the floor and another batch of line is fed through.
Alternatively, you might choose an auto feed weed eater. These are very sophisticated models that bring forth the most convenience. When the line is beginning to run low, the machine will detect this and automatically feed through additional line as it is needed. Another type of automatic weed eater is the auto-off trimmer. This works when the machine is switched off and a new amount of line is automatically fed through.
Manual weed eaters, sometimes called self feeding weed eaters require the user to pull the new amount of string trimmer line through by hand. While these models were very popular some years ago, modern developments and automatic trimmers are much simpler and easier.
If you purchase a bare tool that does not come with batteries or a charger then you will notice that the cost is significantly lower than when you purchase a cordless weed eater with all the bits and bobs included. If you’re moving over from a gas or corded model, then you will need to make an initial investment whether you purchase a kit or all the components separately.
However, it is important to keep in mind that, over time, battery powered weed eaters require almost no maintenance. Where you would have had to buy replacement fuel, oil and parts for your gas powered tool, this is not something that you will need to consider when using a cordless tool.
There are weed eaters to suit every budget and while you will be able to find a very effective and affordable tool, it is important to check that it has everything you would expect. It is better to invest a little more at this point than to spend less only to have to replace the tool soon down the line.
You will find that most of the modern battery weed trimmers come with a brushless motor. At first thought, this may not seem like an important point; after all, a motor is a motor, right? Not exactly, a brushless weed eater will likely last much longer than one with a brushed motor.
These motors run much more smoothly and require nowhere near as much maintenance yet still have far greater longevity than their brushed counterparts. Moreover, they are quiet and produce few vibrations giving you a much more comfortable gardening experience.
In addition to this, it is important to think about how much power you want the motor to produce. Brushed motors are OK for lighter jobs but for anyone looking to replace their gas powered weed eater, a brushless motor is the way forward.
If it is possible, we would highly recommend testing your weed eater before you hand over any of your hard earned cash. While manufacturers are getting very good at lowering the vibrations that run through your hands as you use the tool, there is still a way to go before this feature is perfected.
If you have to work an entire yard using a tool that vibrates heavily, you will know about it towards the end of the job.
Using a thicker line will mean that it is generally more durable. However, if you are only going to be trimming a few sparse weeds, you might not need something quite as thick. Typically, we would recommend choosing a line up to 0.080inches and this will be suitable for most domestic situations.
That being said, if you are going to be working on a much more demanding project, then you might need to up this thickness to 0.095 inches which will stand up better to dense weeds and grass.
The cutting swath of the week eater refers to how much ground it will cover in one pass. For domestic situations, you probably won’t need anything more than 12-15 inches. That being said, if you are going to be tackling a much larger area, you might want to up this to 18 inches to allow you to cover more ground at once.
You’ll typically find that professional models have a larger cutting swath and there is nothing wrong with choosing one of these models for domestic use if you feel it will benefit your garden.
If you thought that a battery powered weed eater came with just one type of battery then it might surprise you to learn that there are several types and each has its own pros and cons.
Most of the newer battery weed wackers will come with a lithium ion battery. They tend to be much smaller but have the ability to hold onto a lot of power. This type of battery is used in everything from cordless mowers to smart phones and laptops to cordless drills.
The nickel cadmium batteries are inexpensive and while they are much smaller, they tend to have a longer life. In addition, these batteries are generally much more durable although they do need to be fully discharged regularly which makes them slightly higher maintenance.
Nickel metal hydride batteries are usually used in the photography industry and they wield a very impressive amount of power. That being said, when compared to the longevity of lithium ion and nickel cadmium batteries, they just don’t match up.
Lead acid batteries are not often seen in cordless garden tools like the battery powered weed wacker. In the main, this type of battery is used in cars and other vehicles because of it’s better discharge resistance.
When we talk about battery voltage, we are referring to how much power the battery can put out. As we have already seen, cordless tools like the weed eater typically come with either 20v or 40v batteries. This voltage refers to how much power is allowed through the battery’s drain hole at any one point.
While a 40v battery will deliver significantly more power, you should keep in mind that the run time of these tends to be less as more power is needed to keep them running.
When you buy a cordless tool, you will often see that one of the battery details is given in Ah. For the most part, powered garden tools will use either a 2.0Ah or a 4.0Ah battery although there are some newer models of lawn mowers that are now using 7.5Ah batteries. But this doesn’t have anything to do with how powerful the battery is and more to do with how long it lasts.
Ah stands for Ampere hours and in the simplest terms, this talks about how many amps are drained from the battery per hour. The higher the Ah number, the longer the battery will last.
Battery Run Time/Charge Time
The length of time that you need your battery to run will depend on how large your garden is and how dense the weeds are. For smaller jobs, you might get away with a shorter running time of around 20 minutes. Conversely, if you’re tackling a bigger job, you might be better looking for a longer lasting battery. Some of the better weed eaters will last between 30 and 60 minutes on a single charge.
Charge time is also an important factor. If you’re caught short in the middle of a job and are left without power, the last thing you want is a battery that takes eight hours to charge. Typically, weed eater batteries will take between three and four hours to charge but there are some manufacturers that offer rapid charging which, in some cases, can refill a battery in as little as an hour.
While most of the modern weed eaters are of an excellent quality and durability, there may sometimes be problems. In this case, you’re going to want to make sure that you are covered. Most manufacturers will provide anywhere between and one and three year warranty during which time, they will repair or replace any parts that malfunction.
What’s the average service life of a weed eater?
In general, a cordless weed eater will last up to five years, but you would expect to get at least three years out of the tool. When it finally gives up, you’ll find that it is typically the battery that will be the cause of the problem.
One of the greatest benefits of the battery powered weed eater is that these tools require little to no maintenance. For the most part, you will only need to replace the string as it wears down. It is important to keep the weed wacker clean and regularly check it for defaults. However, if you do notice any problems, it is better to have this checked by a professional. Attempting to service your weed wacker by yourself could result in voiding your warranty.
Can I swap my battery pack with another brand?
Each manufacturer will design their battery packs in a specific way. While your weed eater may run on a battery that comes from a different brand, there is a chance that it will cause some damage. Moreover, there is a chance that the balance of the tool may not be as good and this could result in injuries.
A battery powered string trimmer is a lightweight and convenient tool that can be used in both domestic and professional situations. With this type of tool becoming so popular, there are now hundreds of models to choose from. Just make sure that you look at the specs carefully to ensure that you always end up with a weed wacker that will serve you well.