10 Best Battery String Trimmers 2025 in the United States

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.

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 40V 13-Inch Cordless String Trimmer/Edger and Leaf Blower Combo Kit offers a versatile solution for maintaining your yard. It features a 40V battery, which is quite powerful for a cordless model, providing good performance for trimming and edging tasks. The 2.0Ah battery capacity might limit runtime, especially for larger yards, but for small to medium-sized areas, it should suffice.

The 13-inch cutting swath is adequate for residential use, allowing you to cover a decent area with each pass. This trimmer is lightweight, at 17.2 pounds, reducing user fatigue during extended use. Additionally, its adjustable aluminum telescoping shaft and 90° rotating trimmer head enhance user comfort and flexibility. The auto-feed line system simplifies operation, as you don't need to manually adjust the line during use.

The included leaf blower with 350 CFM air flow and 100 MPH air speed is a nice addition, making yard cleanup easier. However, the battery life could be a concern for those with larger properties, and some users might find the 0.065” line to be less durable for tougher weeds. This combo kit is ideal for homeowners with smaller yards who need a lightweight, easy-to-use trimmer and blower for regular maintenance tasks.