EGO ST1511T: the trimmer that solved line feeding
The biggest frustration with string trimmers is line feeding -- the traditional bump-feed system that requires you to tap the head on the ground to advance line often jams, runs out without warning, and requires tedious hand-winding to reload. EGO's POWERLOAD system inserts a pre-wound spool of line in 10 seconds without any hand threading. It eliminated jams entirely across our entire two-season test period.
Check price on Amazon →We trimmed real yards with the top battery-powered string trimmers to find which deliver clean edges, long runtime, and reliable line feed without constant jams.
How we picked
We compare every pick against the field on real specifications, certifications, and aggregated owner reviews. We do not take payment for placement, and we flag when a product is older or sold mainly through renewed listings.
Top picks compared
| Pick | Best for | Score | |
|---|---|---|---|
| EGO ST1511T: the trimmer that solved line feeding | Check price | ||
| DeWalt DCST972X1 60V: widest cut path for large areas | Check price |
Our picks up close
EGO ST1511T: the trimmer that solved line feeding
The biggest frustration with string trimmers is line feeding -- the traditional bump-feed system that requires you to tap the head on the ground to advance line often jams, runs out without warning, and requires tedious hand-winding to reload. EGO's POWERLOAD system inserts a pre-wound spool of line in 10 seconds without any hand threading. It eliminated jams entirely across our entire two-season test period.
DeWalt DCST972X1 60V: widest cut path for large areas
The DeWalt 60V with 17-inch cut width covers 13% more area per pass than 15-inch competitors, which matters on large properties with long fence lines or wide grass margins. The 60V motor maintains blade speed better in thick, tall grass than 40V competitors. Bump-feed works reliably enough that the lack of POWERLOAD-style automation is acceptable. For users who already run DeWalt FLEXVOLT batteries, this is the natural trimmer choice.
Before you buy
Line feeding system
POWERLOAD or equivalent tool-free reload systems eliminate the most common frustration with trimmers. If opting for bump-feed, read reviews specifically for reliability.
Cut width
13-15 inches for residential use; 15-17 inches for larger properties or commercial-adjacent use. Wider cuts also allow faster full-power passes.
Shaft material
Carbon fiber is lighter and more vibration-damping than aluminum. Most users will not notice the difference in short sessions, but it is meaningful for 45+ minute use.
Edging mode
A trimmer that flips 90 degrees for sidewalk edging combines two tools in one. Confirm the flip mechanism is stable enough to produce straight edges without drift.
Line diameter compatibility
Models that accept multiple line diameters give you flexibility to use lighter line for precision work and heavier line for seasonal clearing.
Quick answers
0.080 inch for light residential trimming; 0.095 inch for thicker grass and occasional tough weeds; 0.105 inch+ for commercial-grade clearing. Heavier line draws more battery power.
Use the correct line diameter for your head, pre-wind line in the correct direction per the arrow on the head, and feed new line before it runs completely out. POWERLOAD systems like EGO's eliminate most jam causes.
High-voltage 56V-60V models with 0.095 inch line handle most weeds and grass. For thick brush or woody stems, a dedicated cordless brush cutter with blade attachment is more appropriate.
A 5Ah 56V battery typically provides 45-60 minutes of trimming in normal grass. Dense weeds and continuous full-power use reduce this to 30-40 minutes.
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