A weed eater reaches the edges, fence lines, and tight corners that a mower leaves behind. The five trimmers below cover the main power types and target different yard sizes, so you can match the tool to your actual job rather than overspending on power you will not use.
| Product | Best For | Rating |
|---|---|---|
| DEWALT DCST972X1 60V | Best cordless for large yards | 4.7/5 |
| EGO Power+ ST1521S 15” | Best mid-range battery | 4.7/5 |
| Husqvarna 128LD Gas | Best gas for heavy clearing | 4.6/5 |
| Greenworks 40V 14” | Best budget battery | 4.4/5 |
| BLACK+DECKER LST300 20V | Best for small yards | 4.3/5 |
DEWALT DCST972X1 60V — Best Cordless for Large Yards
DEWALT’s 60V FlexVolt trimmer runs on the most powerful cordless platform in the residential trimmer category. The 3Ah 60V battery delivers runtime and cutting power that comes close to light-duty gas trimmers on overgrown grass and weeds. The 15-inch cutting swath and dual-line bump feed system are practical for large lot perimeters. The variable speed trigger and gear selector let you dial back power on lighter trim work to extend runtime. Compatible with DEWALT’s FlexVolt 60V tool ecosystem, so the battery works across other tools in the same platform. A serious cordless tool for serious yard work.
EGO Power+ ST1521S — Best Mid-Range Battery Trimmer
EGO’s 15-inch trimmer is one of the most popular cordless options at its price point. The Power Load system eliminates manual line feeding: cut a length of line, insert both ends into the head, and the trimmer winds it automatically. The 56V battery platform delivers strong performance on standard lawn edging and light overgrowth. The carbon fiber split shaft makes the tool lighter than comparably powered alternatives. Variable speed control and a straight or edging wheel give it more versatility than basic models. The EGO battery platform is extensive and the batteries work across EGO’s mower, blower, and chainsaw lineup.
Husqvarna 128LD Gas Trimmer — Best Gas for Heavy Clearing
For heavy overgrowth, thick weeds, and extended run times without battery concerns, the Husqvarna 128LD is the benchmark in the residential gas category. The 28cc 2-stroke engine provides consistent power through tough conditions. The straight shaft reaches under decks and fences more effectively than curved-shaft models. The Smart Start system and adjustable handle reduce startup effort and fatigue on longer jobs. A detachable shaft allows attachment of other Husqvarna tools on the same drive shaft. Gas maintenance is required (spark plugs, air filter, fresh fuel), but for users who prioritize raw power and unlimited runtime, gas remains unmatched.
Greenworks 40V 14-Inch — Best Budget Battery Trimmer
Greenworks delivers a capable cordless trimmer at a lower price than EGO or DEWALT. The 40V platform provides enough power for standard lawn edging, fence lines, and moderate grass cleanup. The 14-inch cutting swath is slightly narrower than higher-end models but practical for most residential lots. The rotating head converts the trimmer into an edger without a separate tool purchase. Battery and charger are usually included at this price point, which improves the overall value further. Not built for heavy-duty clearing or commercial use, but for routine weekly trimming on an average lawn, it performs well above its price.
BLACK+DECKER LST300 20V — Best for Small Yards
For small yards, patios, and light edging, the BLACK+DECKER LST300 is the most practical option. At it costs less than a replacement battery for some premium platforms, yet it handles basic trimming tasks cleanly. The automatic feed spool requires no bump or manual advance. The 12-inch cutting width is appropriate for small spaces. The 20V battery is lightweight, reducing arm fatigue during shorter sessions. BLACK+DECKER’s 20V Max platform is one of the most widely available battery systems, and the same battery often works across their drills, saws, and other tools. A sensible, no-fuss choice for minimal trimming needs.
How to Choose a Weed Eater
Start with yard size. Under a quarter acre, a 20V to 40V battery trimmer handles the job comfortably. A half acre or more benefits from a 56V to 60V platform or a gas engine. Choose a straight shaft for reaching under obstacles and for taller users; curved shafts are lighter and easier to maneuver in tight spaces. Check cutting swath: 12 to 13 inches for small lots, 15 inches and up for larger areas. Look for a trimmer that belongs to a battery platform you already use or plan to expand, since cross-compatible batteries reduce overall cost. For heavy brush and saplings, look for brush cutter attachment compatibility.
For more yard care coverage, see our picks for best lawn mowers and best leaf blowers. How we rate outdoor tools is explained on the methodology page.
Frequently asked questions
What is the difference between a weed eater and a string trimmer?+
They are the same tool. Weed eater is a brand name that became a generic term, similar to Band-Aid or Kleenex. The formal name is string trimmer or line trimmer. Some heavier models are called brush cutters when they use metal blades rather than nylon line. Most residential tools with nylon line can be called weed eaters, string trimmers, or weed whackers interchangeably.
How long does battery last on a cordless weed eater?+
Runtime depends on battery voltage and capacity. A 40V 4Ah battery typically runs 30 to 50 minutes on a standard trim job. Heavier workloads like thick grass or overgrown areas reduce that time. Most buyers in larger yards keep a spare battery charging while using the first. 20V platforms tend to run 20 to 35 minutes under similar conditions.