Kobalt 80V String Trimmer: Initial Impressions
Finding the perfect lawn mower for your specific needs is always important. The Kobalt KST 140XB 80V String Trimmer offers exceptional value with above-average performance. In addition, we will also discuss our experience with Kobalt’s 80V blower and chainsaw. But for now, let’s focus on string trimmers.
The assembly process is simple and straightforward. All you need is a screwdriver to securely attach the trimmer guard. The mounting bracket has been upgraded with metal parts, improving its durability and ergonomics compared to the previous model. We noticed several improvements over last year’s 40V cord trimmer, which is a positive sign.
Kobalt KST 140XB Cordless Weed Wacker: Design and Features
The Kobalt 80V Cord Trimmer features a straight shaft design with an adjustable cutting range from 14 to 16 inches. By using a screwdriver to adjust the cord cutter in the opposite direction, you can shorten the line. This is beneficial because shorter lines require less power to turn the same RPM, resulting in better overall performance. Kobalt’s latest trimmer utilizes an impact-feed, refillable, dual-wire system filled with 0.080″ monofilament wire, which is thicker than the 0.065″ line used in the 40V model.
One notable design innovation is the placement of the motor in the middle of the shaft, above the connection point. This provides near-perfect balance when the battery is in place, reducing arm fatigue compared to unbalanced trimmers. Additionally, the Kobalt KST 140XB 80V String Trimmer is easily attachable. While most 40V models struggle to run an edger attachment, Kobalt has drawn the line. Although Kobalt does not offer its own accessories, the universal coupling is compatible with most off-the-shelf third-party options.
Kobalt KST 140XB: Build Quality
The trimmer features a plastic construction with metal reinforcement at the pinch points. While its durability under the scorching Florida sun remains to be seen, the textured rubber handle provides a comfortable and non-slip grip. The on/off and speed mode buttons are conveniently located within reach of your thumb. A green LED light indicates the active mode, with the default setting being low speed.
To save battery power, the device automatically turns off after one minute of inactivity. Overall, the length and weight of the trimmer are well-balanced for comfortable use. Our Editor-in-Chief, Kenny Koehler, who stands at 6’2″, also found the handling to be comfortable. Of course, this is all in the context of working under the scorching 95-degree weather.
Kobalt 80V String Trimmer: Performance
So, how does the 80V Kobalt trimmer perform in practical situations? Well, it exceeds expectations. Last year, we believed that 40 volts would suffice, and it did. However, 80 volts takes it to another level. When dealing with denser overgrown areas, the difference in power between the low and high-speed settings is noticeably significant. The low speed setting operates at 5,000 RPM, while the high speed setting reaches 5,500 RPM. As expected, the dual-line system with bump-feeding works flawlessly and is easy to refill with the provided instructions.
The 0.080-inch trim line adds confidence and durability when tackling overgrown areas along chain link fences. Battery life will vary based on speed settings, outside temperature, and cutting length. In our testing, a fully charged battery provided sufficient power to mow the perimeter and interior features of a 0.48-acre lawn, alternating between low and occasional high speeds.
While the Kobalt 80V String Trimmer allows for side-to-side movement, it’s not specifically designed for edging. If you desire that perfect edge, an edger attachment is recommended.
Kobalt 80V String Trimmer: Specifications
- Power: 80V, 2.0 amp-hour battery pack
- Charging time: 30 minutes
- Recommended yard size: 0.5 – 1 acre
- Shaft design: Straight
- Cutting tape: 16″
- Wire diameter: 0.080 inches
- Feed system: Dual-line convex point
- Weight: 13.22 lbs
- Warranty: 5 years
- Price: $116 (tools only), $233 (kit)
Conclusion and Final Thoughts
The Kobalt 80V Corded Trimmer is an excellent choice for basic pruning needs, and it can handle occasional heavy-duty pruning as well. While it approaches professional-grade performance, its runtime falls short of what a professional gardener would require. The battery life varies depending on speed settings and temperature, but it fully charges in just 30 minutes. This trimmer feels well-balanced and can accommodate different attachments. Additionally, it operates quietly with minimal vibration.
The build quality is suitable for homeowners, providing reliability for trimming needs on a half-acre property. Homeowners with three-quarters to a full acre of low-stress mowing will also find this trimmer to be a viable option. As with all Kobalt outdoor power equipment (OPE), you can find the Kobalt 80V String Trimmer at Lowe’s.
Lastly, let’s discuss how OPE should be used correctly. During the assembly process, my 15-month-old son couldn’t resist exploring the trimmer. He jumped on it, grabbed the handle, and made his best maneuvering noises. Initially, I thought of it as a durability test, but upon closer inspection, I realized just how strong the force is. It’s a humorous reminder to exercise caution and keep OPE out of the reach of children.
This article is a reworded version based on the original source.