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3 Best Kobalt Electric Weed Eaters 2025 in the United States

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Our Top Picks

#1

Winner

Kobalts 40-Volt Max 15-in Straight Cordless String Trimmer (Battery/Charger Not Included)

Rating
9.7
Chosen by1,198
Power Source

Most important from
133 reviews

Power Source
The Kobalt 40-Volt Max trimmer works wonderfully, especially for those who already own a compatible 40V mower.

The Kobalt 40-Volt Max 15-in Straight Cordless String Trimmer is designed for users who already own Kobalt 40v batteries and chargers, as it does not include these components. This model is powered by a 40V battery, which should provide ample power for yards up to 1/2 acre. The adjustable cutting swath, ranging from 13 to 15 inches, allows users to choose between extended runtime and faster trimming, making it versatile for various tasks.

Its heavy-duty dual line feed system is effective for tackling tough grass and weeds with ease, and the bump head feature helps in seamless line feeding. The trimmer is relatively easy to start and operate with its variable speed trigger and two-speed settings, offering good control during use. Weighing 11 pounds, it is moderately heavy and this might be a consideration for users who prefer lighter tools for extended use. The adjustable shaft can aid in achieving a comfortable working position.

However, buyers must be aware that the battery and charger are not included, which means an additional purchase is necessary if one doesn't already possess these components. The trimmer also requires some assembly. This product is suitable for individuals who need a reliable and powerful trimmer and already have compatible battery equipment, but might not be the best choice for those seeking a complete kit right out of the box.

Rating
9.7
Chosen by1,198
Power Source

Most important from
133 reviews

Power Source
The Kobalt 40-Volt Max trimmer works wonderfully, especially for those who already own a compatible 40V mower.
#2

Kobalt 40-Volt Max 13-in Straight Cordless String Trimmer (Tool Only - Battery/Charger Not Included)

Rating
9.4
Power Source

Most important from
267 reviews

Power Source
Plenty of power to get the job done.

The Kobalt 40-Volt Max 13-in Straight Cordless String Trimmer is a solid choice for those who need a reliable tool for trimming tasks. It runs on a battery, which means it's cordless and offers more mobility compared to corded versions. However, the battery and charger are not included, so you will need to purchase them separately, which is an extra cost to consider.

The battery voltage at 40 volts is generally powerful enough for most residential trimming jobs, and the 13-inch cutting width allows for a decent reach, making your work efficient. The trimmer weighs 10.78 pounds, which is relatively manageable but could feel a bit heavy over extended use. Having an adjustable shaft is a big plus, as it allows you to customize the length to your comfort, making it easier on your back and arms.

The assembly is required, which might be a little challenging if you're not handy. Also, it's positioned at #210 in the string trimmers category, suggesting it's a popular, if not top-tier, choice. This Kobalt trimmer could be a great addition to your garden tools if you don't mind the additional purchase of a battery and charger and can handle a bit of weight.

Rating
9.4
Power Source

Most important from
267 reviews

Power Source
Plenty of power to get the job done.
#3

Kobalt 40-Volt Max 15-in Straight Cordless Bare Tool String Trimmer (Battery Not Included)

Rating
9.1
Power Source
Weight
Adjustable Shaft

Most important from
359 reviews

Power Source
Swapping batteries around with other Kobalt tools like the lawn mower and leaf blower is really handy.
Weight
Works great! Easy to load up and light weight. Very quiet and super easy to put together.
Adjustable Shaft
The trimmer can feel a bit long in tighter spaces, making maneuverability slightly challenging.

The Kobalt 40-Volt Max 15-in Straight Cordless Bare Tool String Trimmer is a battery-powered tool, which means you can work freely without being tethered to a power outlet. However, it's important to note that the battery is not included, so you will need to purchase it separately.

The trimmer operates on a 40-volt battery, which offers a good balance of power and runtime for most yard tasks. With a 13-inch cutting width, this trimmer is efficient for small to medium-sized gardens, allowing you to cover more ground quickly. At 11.53 pounds, it is relatively lightweight, which should make it easier to handle, especially for extended periods.

The adjustable shaft adds to the convenience, allowing you to customize the height for a more comfortable working position. Assembly is required, but most users report that it is straightforward. This trimmer is ideal for homeowners who need a versatile and easy-to-use tool for maintaining their lawns.

Rating
9.1
Power Source
Weight
Adjustable Shaft

Most important from
359 reviews

Power Source
Swapping batteries around with other Kobalt tools like the lawn mower and leaf blower is really handy.
Weight
Works great! Easy to load up and light weight. Very quiet and super easy to put together.
Adjustable Shaft
The trimmer can feel a bit long in tighter spaces, making maneuverability slightly challenging.

Buying Guide for the Best Kobalt Electric Weed Eaters

Choosing the right electric weed eater can make your yard work much easier and more efficient. When selecting a Kobalt electric weed eater, it's important to consider several key specifications to ensure you get the best fit for your needs. Understanding these specs will help you make an informed decision and find a model that suits your yard size, type of vegetation, and personal preferences.
Power SourceElectric weed eaters can be either corded or cordless. Corded models require an electrical outlet and an extension cord, which can limit your range but provide consistent power. Cordless models use rechargeable batteries, offering more mobility but requiring recharges. If you have a small to medium-sized yard, a cordless model might be more convenient. For larger areas, a corded model ensures you won't run out of power mid-task.
Battery VoltageFor cordless models, battery voltage is a key spec. It indicates the power output of the weed eater. Common voltages range from 20V to 80V. Higher voltage means more power and longer run time, which is ideal for tougher jobs and larger areas. If you have a small yard with light trimming needs, a lower voltage (20V-40V) should suffice. For larger yards or thicker vegetation, consider a higher voltage (60V-80V).
Cutting SwathThe cutting swath is the width of the area the weed eater can cut in a single pass. This spec is important because it affects how quickly you can complete your trimming tasks. Cutting swaths typically range from 10 to 15 inches. A larger cutting swath (13-15 inches) is better for larger areas as it reduces the number of passes needed. For smaller, more detailed work, a smaller cutting swath (10-12 inches) offers better precision.
WeightThe weight of the weed eater affects how easy it is to handle and maneuver. Lighter models are easier to use for extended periods and are less tiring, which is important if you have a lot of trimming to do. Weights can vary from around 5 to 10 pounds. If you have a small yard or prefer a lightweight tool, look for models on the lower end of the scale. For more robust tasks, a slightly heavier model might offer better durability and power.
Adjustable ShaftAn adjustable shaft allows you to change the length of the weed eater to suit your height and reach. This feature is important for comfort and ergonomics, helping to prevent strain and fatigue. If multiple people will be using the tool, or if you need to reach under bushes or into tight spaces, an adjustable shaft can be very beneficial. Look for models that offer easy adjustment mechanisms.
Line Feed SystemThe line feed system determines how the cutting line is advanced. There are three main types: bump feed, automatic feed, and manual feed. Bump feed requires you to tap the head on the ground to release more line, giving you control over the line length. Automatic feed systems release line as needed without user intervention, which is convenient but can be less precise. Manual feed requires you to stop and adjust the line by hand. Choose a system based on your preference for control and convenience.

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