Black & Decker 20V MAX* 12 in. 2-Speed String Trimmer/Edger

The Black & Decker 20V MAX* 12 In. 2-Speed String Trimmer/Edger (model LST522) has been a staple in my yard work toolkit for quite some time now, and it has proven to be both a reliable and versatile tool for maintaining a well-manicured lawn. This cordless electric trimmer and edger offers an excellent balance between power and ease of use, making it a great choice for both casual gardeners and more seasoned yard enthusiasts.

Design and Build Quality

The first thing I noticed about this trimmer is its lightweight design. Weighing in at just 7.7 pounds, it's easy to maneuver around the yard without causing strain, even during extended use. The adjustable height and handle with soft grip contribute to its ergonomic design, making it comfortable to hold and operate. The ability to adjust the length was particularly useful for me as someone who often switches between different tasks. Whether trimming around flower beds or edging along sidewalks, the trimmer's adjustable features ensured that I could find a comfortable and efficient working position.

Performance and Efficiency

One of the standout features of this trimmer is its two-speed control, which allows for easy power adjustment. On low speed, it handles lighter tasks like trimming grass and maintaining already neat areas quite efficiently. When confronted with thicker weeds and denser patches of grass, switching to high speed provided the extra power needed to get the job done. This versatility in power settings is a significant advantage, as it enables the trimmer to handle a variety of yard conditions without compromising on performance or battery life.

The automatic feed spool (AFS) system is another highlight. It continuously feeds the trimmer line as needed without requiring manual bumping, which saves time and effort. This feature worked flawlessly for me, ensuring that I could maintain a consistent cutting edge without frequent interruptions to adjust the line. However, it’s worth noting that some users might experience issues with the AFS system over time, particularly if the trimmer is used extensively.

Battery Life and Charging

Equipped with a 20V MAX* Lithium Ion battery, the trimmer offers a reasonable runtime that should suffice for most small to medium-sized yards. On a full charge, I was able to tackle my yard, which includes a mix of open grass areas and more intricate trimming around flower beds and walkways. The battery lasted for about 30-45 minutes on a mix of high and low speeds, which was enough to complete my tasks. For larger yards or more extended periods of use, having an extra battery on hand is advisable.

Charging the battery using the included wall-mountable charging base takes approximately 3-5 hours. While this is relatively standard for lithium-ion batteries, it does mean that planning ahead is crucial if you have a lot of trimming to do. One improvement that could enhance user experience is the inclusion of a battery charge indicator, which would make it easier to monitor remaining power and plan charging intervals accordingly.

Conversion and Additional Features

The trimmer’s ability to easily convert from a trimmer to a wheeled edger is a feature that I found particularly useful. With just a simple twist and push, the trimmer head can be adjusted to edge mode, allowing for precise, clean edges along sidewalks, driveways, and garden beds. The guide wheel helps maintain a consistent height and prevents the line from getting too close to solid objects, which is a nice touch.

Additionally, the PowerDrive Transmission ensures increased torque, which enhances the trimmer's overall cutting power. This feature was especially beneficial when dealing with tougher, more resilient weeds and grasses. Despite its lightweight design, the trimmer feels sturdy and capable, providing confidence that it can handle various yard tasks effectively.

Durability and Maintenance

In terms of durability, the Black & Decker LST522 has held up well over time. However, it’s essential to handle the trimmer with care to avoid common issues such as wear on the trigger mechanism and potential motor failure due to debris accumulation. Regular maintenance, such as cleaning the motor head and ensuring the trimmer is stored in a dry, protected location, can help prolong its lifespan.

One area where the trimmer could improve is in the robustness of its components. While the overall build quality is satisfactory, certain parts, such as the folding handle hinge and the plastic housing around the motor, feel somewhat flimsy. Ensuring these components are used with care can help mitigate potential issues and keep the trimmer functioning optimally.

Conclusion and Recommendation

Overall, the Black & Decker 20V MAX* 12 In. 2-Speed String Trimmer/Edger (model LST522) is a well-rounded, user-friendly tool that offers excellent performance for its price. Its lightweight design, adjustable features, and versatile power settings make it a great choice for maintaining small to medium-sized yards. While it may not be suitable for heavy-duty tasks or extensive use without additional batteries, it excels in providing convenience and ease of use for everyday yard work.

I would recommend this trimmer to homeowners looking for a reliable, easy-to-use option for regular yard maintenance. Its combination of power, versatility, and ergonomic design makes it a valuable addition to any gardening toolkit. However, those with larger properties or more demanding trimming needs may want to consider additional batteries or a more robust model to ensure uninterrupted performance. Overall, the LST522 delivers on its promises and offers a satisfying, hassle-free trimming experience.