Who uses corded electric string trimmers anymore? Cordless and battery powered tools and equipment may be the way to go, especially when doing yard work.
After mowing the lawn, or doing some landscaping, it is always a good idea to trim the borders, especially if they’re full of weeds. This is what completes the masterpiece. To do this, a weed eater is recommended. But why get just any weed eater when there are many great cordless weed eaters on the market? Just need to find the best one.
This is what this article is all about. Here, we’ll discuss why a cordless weed eater is needed in the first place, give tips on how to choose the best battery weed eater, and highlight some of the top picks on Amazon today!
Another kind of weed eaters we reviewed:
- Best Lightweight Weed Eaters
- Best Walk Behind String Trimmers
- Best Brush Cutters
- Best Cordless Grass Shears
Best Cordless Weed Eaters: The Top 10 List
WORX WG163 Cordless String Trimmer & Edger
Looking for something that can transform from a trimmer to an edger when needed? Then check out the WORX WG163 GT 3.0 20V PowerShare 12” Cordless String Trimmer & Edger.
This model has 7600 rpm no-load speed, 12-inch cutting width, 10-inch cutting line length, and 0.065-inch line diameter. It is powered by two 20V Power Share MaxLithium batteries that should last for up to 3-5 years and are covered by a year-long warranty.
At a mere 5.3lbs, this model features an automatic feed line, a 90-degree tilt head, and an adjustable spacer guard to keep plants and ornaments safe when the lawn is being trimmed.
Pros
- Perfect for small gardens and yards
- Lightweight
- Less vibration
- Relatively quiet
- Ca 40 minute run time
Cons
- Not suitable for large yards
- Not ideal for tough grasses and weed
Makita XRU11M1 Cordless String Trimmer Kit
This battery and brushless motor in this kit afford users up to 30 minutes of run time from a 4.0 Ah battery on its highest setting. It comes with 3-speed options: low 4000 RMP, medium 5000 RMP, and high 6000 RMP to match whatever task the trimmer is being put to.
Some additional features include Makita Extreme Protection Technology (XPT) that protects the tool from adverse weather and dust that can damage its insides, easy load bump feed head, and reverse rotation for whenever grass and weed threaten to tangle the head.
Pros
- Low vibration
- Comfortable to carry
- Well balanced
Cons
- Unclear instruction manual
Craftsman V60 Cordless Weedwacker String Trimmer
The ergonomic design of the Craftsman V60 Cordless 15-in. Brushless Weedwacker String Trimmer provides better comfort and control, especially for those with good sized yard space.
It features a bump feed system that accepts 0.080 and 0.095-inch lines, a two-speed variable switch (long run time and high power), and a high-performance brushless motor.
The best part about this model is that it can give a 2-3 hours performance before the battery needs to be charged or replaced.
Pros
- Can cut ¼ inch weeds
- Well built
- Long-lasting battery
Cons
- Not the most lightweight trimmer
MILWAUKEE ELEC TOOL STRING TRIMMER
Wanna a clear thick brush? Then the MILWAUKEE string trimmer is the tool for the job.
The MILWAUKEE ELEC TOOL 2725-21HD 18V M18 STRING TRIMMER has an 18V lithium-ion battery that reaches full throttle in less than a second and has a variable speed trimmer to suit the task at hand.
It uses 0.080 and 0.095-inch lines and can hold up to 20 ft of 0.095-inch lines.
The cut capacity on the MILWAUKEE ELEC TOOL 2725-21HD 18V M18 STRING TRIMMER has an adjustable trimmer head from 14 to 16 inches and has an offset gearbox that prevents weed buildup between the guard, head, and gearbox.
Pros
- A real powerhouse
- Compact and well balanced
- Quiet
- Long run time and quick charge
Cons
- Not suitable for commercial use
- Expensive
Earthwise CST00012 Cordless Electric String Trimmer
Looking for something that can transform from a trimmer to an edger when needed? Then check out the WORX WG163 GT 3.0 20V PowerShare 12” Cordless String Trimmer & Edger.
This model has a 7600 rpm no-load speed, 12-inch cutting width, 10-inch cutting line length, and 0.065-inch line diameter. It is powered by two 20V Power Share MaxLithium batteries that should last for up to 3-5 years and are covered by a year-long warranty.
At a mere 5.3lbs, this model features an automatic feed line, a 90-degree tilt head, and an adjustable spacer guard to keep plants and ornaments safe when the lawn is being trimmed.
Pros
- Perfect for small gardens and yards
- Lightweight
- Less vibration
- Relatively quiet
- Ca 40 minute run time
Cons
- Not suitable for large yards
- Not ideal for tough grasses and weed
Husqvarna Battery Straight Shaft String Trimmer 115iL
The Husqvarna Battery Straight Shaft String Trimmer 115iL is powered by a brushless electric motor whose primary function is to ensure efficiency while maintaining a long run time and extended tool life. The 40V battery and 14-inch cutting swath enable it to cut everything from lawn edges to tough grass with ease and in good time.
Its ergonomic design ensures that it can be carried around easily and can be adjusted to fit any user’s comfortable working position. As it relates to noise, the manufacturer promises that it will never pass 77 decibels, which means the neighbors won’t be disturbed and the yard can get cut any time of day.
Pros
- Powerful
- Quiet
- Easy to use
Cons
- Pricey
BLACK+DECKER LST136 String Trimmer / Edger
The BLACK+DECKER LST136 40V MAX String Trimmer / Edger is every suburban dad’s (or mom’s) dream. It is lightweight, easy to manage, and won’t create a racket every time the lawn is due for a manicure.
Forget bumping for more lines, the model features an automatic feed spool that will save time and energy. It can also convert from a trimmer to an edger in seconds!
This black + decker weed eater model also contains a 40V Max High Performance battery that is capable of switching from Max Power mode to Max Run time mode at the touch of a button which can extend battery life if there are no weeds to be cut.
Pros
- Can cut through small and moderate weeds
- Easy to use
- Comes with a battery life meter
- Quick battery charge
Cons
- Short runtime
- Lots of plastic parts
DEWALT DCST920B String Trimmer
The DEWALT DCST920B 20V MAX Lithium-Ion XR Brushless 13” String Trimmer features a brushless motor powered by lithium-ion battery for maximum motor efficiency and durability.
On the outside, the model is activated with a trigger control rather than a pull cord and can easily be adjusted to variable speeds. It uses two 0.080inch lines and has a bump feed trimmer head to spare users the backache and effort when it is time to replace the line.
The DEWALT DCST920B 20V MAX Lithium-Ion XR Brushless 13” String Trimmer comes as is but it can be purchased in a separate pack: DEWALT 20V MAX XR 20V Battery, 5.0-Ah, 2-Pack.
Pros
- Variable speed settings
- Quiet
- Efficient
- Great for men and women
Cons
- Relatively heavy
BLACK+DECKER LSTE525 String Trimmer / Edger
The BLACK+DECKER LSTE525 20V MAX Lithium Easy Feed String Trimmer/Edger was designed to be a powerhouse for the do-it-yourself gardener who wants his/her yard to be in tip-top shape at all times.
This weed eater model features a micro-texture soft grip to ensure comfort when it is being used for a long time with adjustable height and handles. It also holds lines of 0.065 inches and has an automatic feed spool so there’s no bumping required.
It is a little over 6 pounds but does not underestimate its power. Users can switch between max power and max run time mode depending on what is being cut, and it can transform from a trimmer to a wheeled edger in just a few moments.
Pros
- Lightweight
- Good run time
- Easy to manage
Cons
- Not suitable for large yards or gardens
- Long recharge time
GreenWorks Cordless String Trimmer Combo Pack
The GreenWorks G-MAX 40V Cordless String Trimmer and Leaf Blower Combo Pack come with a 12-inch cordless string trimmer whose front mount motor keeps the model balanced and easy to use.
This beginner-friendly model is comfortable to carry and is relatively lightweight.
It comes with an auto-feed head for quick and easy line advancement for lines of 0.065 inches, so say goodbye to bumping and hello to getting the job done faster.
The model also features a variable speed trigger that allows its user to easily switch between power modes for light to medium weeds and grasses.
Pros
- Lightweight
- Easy to use
- Different power modes
Cons
- Won’t cut tough heavy weeds
- Not suitable for large yards or gardens
Best Battery Powered Weed Eater: The Buying Guide
Why Choose A Battery Powered Weed Eater?
Sure, gas weed eaters might have been the way back in the day, but in this day and age, battery-powered weed eaters are the way to go. The Best electric weed eaters available on the market came a long way and some can match the performance of their gas competitors.
Battery powered weed eaters are superior in many ways, but they do have a few drawbacks. Here are the advantages and disadvantages that should be kept in mind when buying a cordless weed eater:
Advantages
- Battery models are lighter than gas powered string trimmers. Gas models are clunky and heavy. Carrying them around a large garden can be energy consuming and can become uncomfortable quickly.
- Battery operated models are less noisy. Gas models make a lot of noise and sometimes even ear muffs aren’t enough to protect its user from the noise. Battery models are virtually noiseless and there’s no need to worry about constant noise complaints from the neighbors.
- Battery powered models are more convenient. Who wants to be tripping over cords while working with potentially hazardous equipment? Plus, if the garden is large, long extensions will be needed which can be a nightmare if there are kids and pets at home. Since the battery operated model has its own power source, wires and cords will be a worry of the past. They also require little to no maintenance.
- Battery power is Eco-friendly. It is no secret that a gas operated model will emit fumes while it is being used. Though small, it does contribute to air pollution and by default, greenhouse gas emissions and global warming. By choosing to use a cordless model, personal contribution to climate change will decrease, and the air around will be cleaner.
Disadvantages
- The battery can die or become useless after a while. Batteries don’t last forever and while the gas-powered weed eater models offer the chance to fill it back up whenever it runs out, with the battery model they have to be recharged or exchanged for a spare battery. Run time is also lower than a gas models.
- They are not as powerful as gas models. Battery-powered models can’t hold a candle to gas models when it comes on to engine power. They lack the type of engines that give gas models their power.
- They are less sturdy. Battery-powered models are usually less sturdy than gas powered models. They may be clunky and heavy, but they sure are strong.
Factors To Consider Before Choosing a Cordless Weed Eater
When choosing the best cordless weed eater, consider the following:
Weight
These days, cordless string trimmers are roughly 15 pounds or lighter. If the garden is large, this should be one of the biggest considerations since any heavier than that would cause anyone to tire easily. You may as well consider a good string trimmer harness to lessen the impact of the weight.
Power
If the yard only has a few weeds and is tiny, then a powerhouse really isn’t needed. However, if there are branches and tough weeds that need to be cut then something that can put some real work in is needed.
Gas trimmers are notorious for being real monsters and effective but over the years the technology of battery-powered string trimmers has advanced enough to make them worthy contenders.
Battery Life/Run Time
Battery life/ run time is important especially when the yard is big. If the battery dies mid-work, it will take time to recharge/replace it and make the work take much longer than it needs to.
Modern lithium-ion batteries are reasonably quick to recharge and they last longer.
Try to get a model with batteries that can be replaced on the go, instead of waiting for them to recharge again.
Trimmer Design
Straight shaft designs are generally sturdier and can be used for many purposes. They also have more torque and better reach.
Curved shaft designs are typically lighter, quieter, and more useful for edging. However, they may be becoming obsolete since straight shafts are extendable.
Maintenance
Cordless models require little to no maintenance. This doesn’t mean that they won’t ever pose a problem.
Their string and head mechanism still need attention from time to time.
This is why reviews are super useful. The experiences of others will help to determine how much trouble the model will be to maintain, especially for beginners.
Ease of String and Head Replacement
If getting replacement strings and head for the trimmer seems to be a hassle due to rare strings used or the weed eater head is too unique, then stay away from it. It will be less of a headache in the future.
Go for popular brands that have parts in-store and online, and research universal string and head replacement options.
Warranty
Many people don’t end up using a warranty but it is good to have.
Look at it this way, if there is an issue with the product, for instance, it is defective or breaks within the warranty period, there is no out of pocket cost to repair or replace it. That is in the hands of the manufacturer since they make a promise that it will work well for x period.
Types of Batteries
The type of battery used in the model will help to differentiate it from others. Here’s what will set them apart:
Lithium-Ion (Li-Ion)
Many battery powered devices use modern lithium batteries because they can store energy for longer all in a small, compact space. Lithium-ion battery can be found in phones, laptops, and of course, battery powered trimmers and are lightweight. However, they require protection circuits for safety purposes since they are somewhat fragile.
Advantages
- Lightweight and perfect for use in tools that have to be carried for extended periods
- Charge relatively quickly
Disadvantages
- Expensive
Nickel Metal Hydride (NiMH)
Nickel metal hydride batteries can give off greater immediate power because they have less resistance. However, they don’t last very long and are not suitable for devices that need power for extended periods, and work poorly in cold temperatures. Nickel Metal Hydride batteries were widely used in laptops and cellular phones.
Advantages
- Lighter than Nickel Cadmium batteries
- More powerful than Nickel Cadmium batteries
Disadvantages
- Have a shorter run time
- Perform poorly in cold weather
Nickel Cadmium (NiCd)
Despite being cheap to produce, Nickel Cadmium batteries are less commonly used in devices since they have less storage capacity than say Lithium-ion or Nickel Metal Hydride batteries. They also contain toxic materials and are not environmentally friendly. Nickel Cadmium batteries are used in power tools, biomedical equipment, and professional video cameras.
Advantages
- Have a long life cycle
- Perform well in cold weather
Disadvantages
- Heavy and not suitable for devices that have to be used for a long time
- Contain toxic materials
Battery Specifications – What do they mean and why are they important?
Batteries come with a set of specifications. Anyone who doesn’t know the jargon will be confused about what certain terms mean and if they are good or bad. But we’ve got this covered. Here is a quick rundown of all the important terms related to the batteries in string trimmers.
Battery Voltage (V)
In the simplest of terms, the battery voltage is the amount of power or strength the battery can provide.
Think of an electrical circuit as a water turbine system. The maximum capacity of the pipes may be x, but that doesn’t mean that there will always be x amount of water in the pipes.
When there is more x amount of water in the pipes, the turbine at the end can turn faster since it has more power being driven towards it. The amount of water that reaches the pipe is dependent on the drain that connects the pipe and the turbine. If the drain is big, then more power can be driven at once. However, if it is small then the turbine won’t turn as quickly.
In other words, voltage is the water pressure.
Battery Capacity (Ah)
Ampere hour can be described as how much charge the battery can store measured by time, or in the case of the water system, the speed of flow. For instance, 1000 gallons an hour, in a 10,000-gallon tank would take 10 hours to empty.
To measure the capacity of a battery, we check how many hours we can get out of it until it is completely drained.
Run time
Run time refers to how long the battery will take to run out from the time it is being used until it stops giving out power. This is an important consideration especially if the yard is big and it will take a good amount of time to complete the work.
Do not get this confused with charge time which describes how long the battery takes to be fully charged after it is drained of energy.
Interchangeability
Cross compatibility is a plus since it can help to save money, especially when power tools are of the same brand. Imagine having to get a brand new battery in the middle of yard work without being able to borrow one from another tool?
Brands typically have their own set of specifications in terms of connectors and voltage, therefore interchangeable batteries can only be shared with the same brand and same system tools. For example, Worx has the MAX and PowerShare systems, GreenWorks has G-MAX, and so on.
How to whack weeds without breaking the line
Breaking a line can be the most annoying and inconvenient thing to happen, especially when the work is nearly done or when there are many other things on the agenda for that day.
To avoid breaking a line, check the trimming path. Are there any rocks or debris? Get rid of them before turning on the trimmer. If the brush is too thick for the weed eater, do not attempt it.
For regular cutting, approach from the edge and ease into the work slowly. The tip is the most effective part of cutting.
Always choose the right trimmer line for your tool. If necessary, replace worn parts in one go, like the trimmer head.
Avoid curbs, pavements, the edge of buildings, and other obstacles that can cause the line to snap. Approach them with caution from the side or do it manually. Better safe than sorry right?
In case the line is broken, there is no need to cry over spilled milk. Check out our guide on how to re-string the trimmer.
Conclusion
When choosing the best battery powered weed trimmer, it is best to read a number of reviews and get feedback from others since they can help to make an informed decision.
In our opinion, the Worx WG163 model should be the most popular weed eater on this list. We highly recommend it as it is a good compromise between performance and price.
Even though Milwaukee is the most expensive, it does an awesome job and is top quality, thanks to its great design and powerful battery system.
