Best Cordless String Trimmer for Cutting Grass & Weeds

Cordless String Trimmers

Cordless string trimmers can easily streamline the amount of work that someone would need to do in order to keep their backyard in top shape. If you need to give your garden or lawn a regular trim then a string trimmer should be a must-have in your gardening arsenal.

Top String Trimmer Recommendations

Here are a few cordless string trimmers we suggest to add to your shortlist. These lawn maintenance devices are known for their ease of use and efficiency.


This trimmer by BLACK+DECKER comes with 20V MAX power, which should be enough for handling small and medium-sized clearing areas. You will most likely find that it will work well for the first 15-20 minutes before starting to slow down (this is for taller weeds or grass).

We like that this comes in a 2-in-1 combo meaning it offers the functionality of both a trimmer and a wheeled edger. This should allow you to easily cover all areas of the yard, especially the edges of the clearing area where the mowers can’t easily reach.

WORX Cordless Trimmer

The WORX cordless string trimmer has a cool feature where the shaft will adjust to the user’s height and posture via the command feel spool system. The device itself is also pretty lightweight so you won’t feel too much stress when you need to use it for an extended period of time.

One downside might be the battery life. Some people found the usage time to be smaller than anticipated, which means they have to do more than two trimming sessions to make up for the whole lawn or weed clearing space.

Husqvarna Battery Straight Shaft String Trimmer

This trimmer comes with a 36.5 V battery voltage, which will allow you to handle a large variety of tough weeds and grass species. It comes with a telescopic shaft so you won’t have to worry about breaking your back as you can adjust the product length to whatever feels comfortable for you.

The cutting swath also comes at about 14 inches so you can easily accomplish a lot of trimming in a short amount of time. We would recommend this device for homeowners with medium to large-sized lawns. Despite its power, the cordless string trimmer by Husqvarna is fairly light-weight.

GreenWorks Cordless Trimmer

This cordless string trimmer by GreenWorks comes with a 12 inch dual-line that will easily swipe through most types of weeds and grasses. It is also a suitable choice for people who are looking for a trimmer that makes less noise than the conventional ones.

You have two choices of batteries: the 2.0Ah Battery and the 4.0Ah Battery. The weight of the product is about 15 pounds and the typical usage time is up to one hour. You may, however, find that the power of the trimmer will start to gradually decrease much sooner.

Important Qualities of a Cordless String Trimmer

Those that are new to this lawn care device may get confused by the number of different features that are available to them when they use it for their lawn. Based on our experience, the most important qualities of a string trimmer to consider is the battery life, ease-of-use, and the fan design.

  • Battery Life: it would be ideal to have a cordless string trimmer that doesn’t require multiple recharges per trimming session. Pay close attention to the battery that the cordless string trimmer uses. For example, some devices will come with a 2.0AH battery that will last up to 45 minutes per charge. You may need a shorter or longer amount of time depending on the size of the clearing area and the type of vegetation you want to clear.
  • Ease of Use: it can get tough when you are holding a string trimmer for an extended period of time. Ideally, there should be an ergonomic element that’s part of the device design. For example, some devices will come with an adjustable auxiliary handle for additional handling comfort.
  • Fan Design: what type of vegetation are you looking to clear? Make sure the string trimmer is packed with enough power to clear tough vegetations or grass species.

Common Questions About String Trimmers

Here are some common questions that people have when they purchase or use a string trimmer.

What is the Difference Between 20V and 40V trimmer?

The difference is in terms of the voltage of the battery. 40V would indicate higher power but higher doesn’t always necessarily mean better. It really comes down to your use case for the cordless string trimmer. 40V trimmers are more powerful and will do an efficient job of cutting heavy grass, but they are also heavier and larger in size. If you only need to do light maintenance work then the smaller 20V trimmer may be more appropriate for you.

What is a String Trimmer Used for?

The main purpose of a string trimmer is to help get rid of unwanted weed and grass. The device features a spinning that rapidly turns and cuts through the weed. They serve a similar purpose to lawn mowers except the trimmer is able to reach certain areas of the yard that the lawn mower can’t.

It’s important to trim the lawn on a regular basis as you wouldn’t want the yard to become a hotbed for common outdoor pests like fleas and beetles. Tall grass can act as a shelter for such insects.