10 Best Battery String Trimmers 2025 in the United States

The EGO Power+ ST1502SA 15-Inch 56-Volt Cordless String Trimmer is a strong contender in the battery-string-trimmers category. One of its standout features is the high battery voltage of 56 volts, which promises powerful performance. The included 2.5Ah battery capacity should provide reasonable run time for most home users, though heavy-duty users might wish for an extra battery. The 15-inch cutting swath is impressive, allowing you to cover more ground quickly, reducing trimming time. At 7.4 pounds, it sits in a manageable weight range, although some might find it a bit heavy for extended use.

The adjustable features, like the variable speed control and rapid reload head, enhance usability by providing customization depending on your specific needs and making line replacement straightforward. The dual-feed spiral twist line and brushless motor ensure efficient cutting and longer motor life, which is a significant plus. The fan-cooled charging system and included charger that supports all EGO batteries are added conveniences that help in battery maintenance and compatibility across the EGO tool range. A 50-minute full charge time is relatively quick.

However, the trimmer might feel bulky due to the split shaft design, which can make storage easier but might affect balance during use. The IPX4 weather resistance is a useful feature for outdoor work. The warranties are generous, providing peace of mind for tool and battery longevity. While it ticks many boxes for performance and convenience, it might be on the higher end of the price spectrum. This trimmer is best suited for homeowners who require a reliable and powerful tool for regular yard maintenance and appreciate the flexibility of battery-powered equipment.

The Greenworks 60V 16" Brushless Cordless String Trimmer is a strong contender if you're looking for a powerful, cordless lawn tool. Its 60-volt battery with a 4.0 Ah capacity provides excellent power and decent runtime, allowing you to trim for longer periods without frequent recharges. The brushless motor offers better efficiency and torque compared to many gas-powered trimmers, but without the noise and fumes, which is great for quieter, eco-friendly yard work. The 16-inch cutting swath strikes a good balance—wide enough to cover ground quickly while still being manageable around tight spots. At 18.7 pounds, it’s on the heavier side for a battery trimmer, which might be tiring if you have a large area or prefer a lightweight tool. You’ll appreciate that it comes with a battery, charger, and even a spool, so it’s ready to go out of the box. Its compatibility with over 75 other Greenworks 60V tools might be a bonus if you plan to expand your cordless garden equipment.

The 4-year warranty on both the tool and battery adds peace of mind. This trimmer is suited for homeowners who want a strong, quieter alternative to gas models and value long battery life. If you prioritize light weight or highly adjustable features, you might want to compare with other models.

The Worx String Trimmer Cordless GT3.0 is a versatile tool that functions both as a string trimmer and an edger, making it handy for various lawn care tasks. It operates on a 20V battery system and comes with two batteries, ensuring you have extended runtime. The cutting swath is 12 inches, which is decent for small to medium-sized yards. At a weight of 5.3 pounds, it is relatively lightweight and easy to handle, especially with the rubberized wheels for support and guidance.

The head tilts 90 degrees, which is useful for trimming on slopes and hard-to-reach areas, and the adjustable spacer guard helps avoid damaging your plants and ornaments. The Command Feed spool system allows for instant line feeding, which is a convenient feature, and the free spools for life offer cost savings in the long run. However, the line diameter is 0.065 inches, which might not be suitable for very tough weeds. Additionally, while it provides a no-load speed of 7600 RPM, users with larger yards or heavy-duty requirements might find the battery needing frequent recharges.

Assembly is required, which might be a minor inconvenience for some users. This trimmer is ideally suited for homeowners with small to medium-sized lawns who value versatility and ease of use.