

The relatively short runtime of the Stihl FSA 60 R belies a very capable trimmer. This is a great all-around pick for quarter- to a half-acre yards. The bump guard protects sensitive surfaces during close trimming, and the hang loop offers a convenient way to store the tool when not in use. The variable trigger and EasySpool head improve operating efficiency by saving battery life and minimizing the time it takes to reload, respectively. The trigger interlock and battery retainer latch prevent accidental startup. A few other standout features include a variable-speed throttle trigger, trigger interlock, battery retainer latch, EasySpool cutting head, bump guard, and hang loop. The tough polymer material used for the motor housing and debris shield help keep the weight down. The 36V 3.9 amp hours (Ah) battery charges in a little more than 2 hours. This string trimmer measures just over 66 inches long, weighs less than 10 pounds with the battery installed, and works for about 25 minutes per charge. It comes from a brand with a long history of industry-leading outdoor power equipment. It makes sense that the Stihl FSA 60 R would be a top performer in this test group. These reviews describe the key features of each cordless string trimmer and how the models performed in our backyard tests. Along with cutting power, we tested for battery runtime, maneuverability, and operator comfort and determined the best battery trimmer by category. In addition to trimming the grass zones, we used the 36V, 56V, and 80V models to cut through woody, viny growth in natural areas. To earn a spot in our lineup, the lightweight 20-volt (V) trimmers had to deliver a clean, crisp cut in both clean and weedy grass sections. We put each trimmer through its paces in a variety of real-world scenarios: “clean” lawn grass, weedy grass, and natural areas featuring coarse, weedy seedlings and vines.
DEWALT LAWN TRIMMER FULL
Although some of the trimmers offer lower power settings that could extend runtime, we found that the lower settings simply made them less capable when it came to coarse weeds, so we ran them at full power for testing.

Most trimmers arrived with the batteries about 25 percent charged right out of the box, but a full charge allowed us to gauge runtime at full power. To truly test these battery-powered string trimmers, we started by assembling the tools and charging the batteries. Photo: Mark Wolfe How We Tested the Best Battery Trimmers
DEWALT LAWN TRIMMER PRO
MOST VERSATILE: Greenworks Pro 80V 16-Inch Cordless String Trimmer.BEST TRIMMER/EDGER COMBO: Worx WG170 20V Power Share Revolution String Trimmer.BEST DUAL DIRECTION: Husqvarna 320iL 40V Battery String Trimmer.BEST FOR SMALL YARDS: Worx WG163 20V Power Share GT 3.0 String Trimmer.BEST FOR LARGE YARDS: Echo DSRM-2100 eFORCE 56V 16-Inch Battery Trimmer.

DEWALT LAWN TRIMMER UPGRADE
