Best Battery Powered Weed Eater

Last Updated on September 1, 2020

Are you searching for the best battery powered weed eater?

I have reviewed the top models available and after reading this article you will know which unit will work best for your needs.

Check the quick list below for links to customer reviews and prices for my best battery powered weed eater picks, or read on for the full review:

  1. DEWALT DCST990M1 40V MAX 4.0 Ah Lithium Ion XR String Trimmer
  2. BLACK+DECKER LSTE525 20V MAX Lithium Easy Feed String Trimmer/Edger with 2 Batteries
  3. DEWALT DCST990X1 40V String Trimmer 7.5AH
  4. Greenworks 40V Cordless String Trimmer & Blower Combo Pack STBA40B2
  5. BLACK+DECKER LSTE523 Li-On String Trimmer

The best battery-powered weed eaters use rechargeable batteries that will last for long. With zero gas emissions, these are green products that allow you to take care of all your greenery in the most convenient way.

Benefits of Having a Quality Battery Powered Weed Eater

Weed eaters help you keep your landscape in perfect shape. Older models use gasoline that burns to power an engine, emitting gases as you get rid of the annoying grass. These trimmers cost more money in the long term, pollute the air, and are quite noisy.

Electric weed eaters are cleaner and more environmentally friendly. However, you won’t be able to move around due to the range of the cord.

Battery-powered trimmers are practical tools that can allow any homeowner to take care of their lawn or backyard. Here are some of the benefits of using these models.


These models are mobile because there is no cord to restrict you. You can move around as much as you like.


Battery-powered devices are lighter than corded and gas-powered models. They won’t strain your hand if you carry them for more extended periods.

Ease of Use

To start a traditional weed eater, you’ll have to mix fuel or pull a string. These battery-powered models are easier to use. Just press a button, and the device will start to work.

Environmentally Friendly

These devices don’t burn fuel like the gasoline-powered models. They are green products and won’t emit any annoying gases.

Quiet Operation

Unlike traditional gasoline-powered weed eaters, battery-powered trimmers are not noisy. They’re convenient to use, and your neighbors will appreciate the quietness.


You must buy fuel regularly to keep your traditional weed eater working. With a battery-powered model, you’ll just have to recharge the battery, and it will be good to go.

Selecting the Best Battery Weed Eater

Here are some features that will help you decide on the best battery-powered weed eater for you.

Power Output

How long will you be able to use your weed eater before it needs a recharge? Some portable models use Nickel Cadmium batteries that require regular recharges. These batteries usually don’t last for long, and users typically experience deterioration in the quality of performance, when the battery starts to run low.

Lithium batteries recharge faster and run for longer on a single recharge. The battery also lasts three times longer than a Nickel Cadmium one. The quality is consistent even when the battery starts to run low.


These models are light compared to traditional ones. However, the ones that run on Nickel Cadmium batteries are usually heavier than the ones that use Lithium batteries.


Choose the design of the shaft based on where you’ll most likely use the trimmer. Curved shafts are suitable for dealing with grass and weeds in open lawns. They don’t work well in tight places like under fences. Straight shafts are ideal for getting rid of grass in tight places.

Telescoping shafts can be shortened or lengthened based on your needs. There are also 2-in-1 shafts that can be modified to work like curved and straight shafts.


Although these models are practical, they might not be suitable for you if you have thick weed growth. Battery-powered models aren’t as powerful as gas and electric powered models and might not be able to get rid of all the thick weeds.

If you have a vast area to take care of, you’ll have to recharge the battery more often. In this case, using a gas-powered weed eater will be more convenient.

For most homeowners, however, these modern battery-powered models are enough to take care of their landscape and keep the annoying weeds at bay.

Best Battery Powered Weed Eaters

I like the convenience of using my battery operated weed eater. It is much lighter and easier to carry long distances while not sacrificing power. The key is to get a weed eater that maintains it’s performance long enough to get the job done. I have reviewed the top models based on performance, quality of construction, and durability.

DEWALT DCST990M1 40V MAX 4.0 Ah Lithium Ion XR String Trimmer

This product comes ready for work, with no assembly required so it will be a great choice for first-timers who don’t want to waste time. It’s a mid-price option that comes with a charger.

The dual line diameter is 0.080 inch, and the motor adjusts according to the load, so it will put more current if you’re dealing with taller and thicker weeds. This weed eater weighs 14 pounds and has a 15-inch cutting swath, so it’s heavier than other models on the market.


  • Fair amount of power that adjusts according to the job done.
  • It comes with a charger.
  • It has a speed control switch, so you can choose the high setting of 6600 RPM if you’re dealing with more burdensome chores, or the low setting of 5600 RPM to increase the run time.
  • Long straight shaft to reach tight spots.


  • It’s heavier than other models.
  • Battery takes a long time to recharge.

BLACK+DECKER LSTE525 20V MAX Lithium Easy Feed String Trimmer/Edger with 2 Batteries

This affordable weed eater is a lightweight choice, weighing 6.3 pounds. It can be converted to an edger in no time, providing good value for money. The PowerDrive Transmission increases the torque using the 20V battery.

It comes with two batteries to provide double the run time. The swatch measures 12 inches, so it’s shorter than other models, but it’s a good choice for light to moderate jobs. You can adjust the handle and shaft to reach different spots.

The speed is adjustable from 5500 to 7200 RPM to provide different run time options, and it can support lines of diameters 0.080 and 0.095 inches.


  • Lightweight option that weighs 6.3 pounds to lessen fatigue.
  • Non-slip grip and lightweight design provide more control.
  • Low-speed setting to maximize run time or high-speed to maximize power.
  • Double run time using two batteries.
  • Adjust shaft height for various jobs and increase comfort.


  • 20V battery isn’t very powerful, so it’s only suitable for light and moderate jobs.
  • Shaft isn’t long.

DEWALT DCST990X1 40V String Trimmer 7.5AH

This battery-powered weed eater has a high capacity battery, so it provides excellent torque and runs 25% longer than other batteries. It accommodates 0.080 and 0.095-inch lines and comes with a long swatch that measures 15 inches.

This trimmer is suitable for thick weed growth thanks to its powerful battery. The weed eater weighs 13 pounds while the battery measures around 4 pounds. It’s rather heavy and more expensive than other models on the market, but it comes with a charger.


  • Strong battery-operated weed eater to deal with thick weeds.
  • Adjustable speed settings.
  • Battery lasts longer than other models and requires fewer recharges.
  • Suitable for more challenging jobs.


  • More expensive than other models.
  • Bulky and heavy model that is difficult to maneuver.

Greenworks 40V Cordless String Trimmer & Blower Combo Pack STBA40B2

This weed eater can cover an area of ½ acre running while for 45 minutes. The 7.8 pounds model features a 12-inch swatch and 0.065-inch line so it might not be able to reach all the tough spots. Nevertheless, its lightweight and mid-range price are suitable for light chores.

This trimmer doubles as a blower with 110 mph and 390 CFM to blow leaves away. You can adjust the speed of the trimmer using a simple button. It comes with a battery indicator, so you will know when you should recharge the battery. Moreover, the battery fully charges in 2 hours, unlike other models that take longer.


  • Lightweight model that can be easily moved and controlled.
  • Doubles as a leaf blower.
  • Battery lasts for long and charges in 2 hours to cut through thicker grass.
  • Battery life indicator.


  • String requires regular maintenance.
  • Needs some little assembly.

BLACK+DECKER LSTE523 Li-On String Trimmer

The last product on our list is affordable and weighs 6.3 pounds. It’s good value for money because you can transform it into an edger to take care of your lawn. The PowerDrive Transmission increases the torque to deal with thicker grass.

This model comes with a charger and a higher capacity battery so it will last for long. You can adjust the speed to optimize operation and speed. The easy-feed feature allows you to feed the 0.065-inch line easily with no bumping.

The shaft’s length is extendable, but it measures only 12 inches. This might not be suitable for taller users and people who want to reach tight and hidden spots.


  • Lightweight weed eater that turns to an edger.
  • Single string, so it’s less noisy and causes less damage to wooden fences when trimming.
  • Great control and maneuverability.


  • Shaft is too short even fully extended.
  • The handle rotate option is difficult to use.
  • Battery takes several hours to charge.

For more battery and cordless guides and tips read these articles:

A battery-powered weed eater will fulfill your needs as a homeowner who wants to maintain the status of the lawn or backyard. We believe that DEWALT DCST990M1 40V MAX 4.0 Ah Lithium Ion XR String Trimmer is a winner because it has a reliable battery and a long shaft to deal with weeds in hard-to-reach spots.

It’s more expensive than other models, but it comes with a charger. It’s the optimum choice for most users, despite its heavier weight. This is an excellent choice for bigger areas, especially when you run it on low speed to maximize run time.

Share on facebook
Share on twitter
Share on pinterest
Share on email
Share on print

Leave a Comment

Your email address will not be published. Required fields are marked *