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EGO Power+ ST1623T: What to Know
EGO built its reputation on batteries that outrun most cordless yard tools, and the ST1623T is the company's flagship 16-inch trimmer. It runs on EGO's 56V ARC Lithium system, and the specific Amazon listing we verified (ASIN B0CTL1XM6K) bundles the trimmer with its included 4.0Ah battery and charger plus a bonus 2.5Ah battery, which is a genuinely useful extra for anyone who also owns other EGO 56V tools like a blower or mower.
The headline feature is LINE IQ, EGO's auto-sensing line-feed technology: rather than bumping the trimmer head against the ground to advance line the way almost every other trimmer in this roundup works, the ST1623T monitors line length electronically and feeds fresh line on its own, aiming to keep a consistent 16-inch cutting swath through the whole job. Loading fresh line in the first place uses EGO's POWERLOAD system, where you feed the line in and press a button rather than hand-winding a spool.
The shaft is carbon fiber and telescopic, so it adjusts in length for different user heights, and EGO backs the shaft with a lifetime warranty when registered within 90 days. Cutting is handled by dual 0.095-inch line, on the thicker end for a battery trimmer, which should help with heavier weeds and not just fine lawn edges. Manufacturer figures put the bare tool at roughly 7.7 lbs and around 12.7 lbs with the battery installed; EGO also states up to 60 minutes of runtime on the included 4.0Ah battery, though real-world time will vary with how thick the vegetation is and how often the variable-speed trigger is opened up.
The tradeoff for all this automation is price: kitted EGO trimmers typically run higher than a comparable RYOBI or Greenworks kit, and LINE IQ and POWERLOAD are proprietary systems that only work with EGO's own spools, so there's no mixing in generic replacement line spools the way you can with a plain bump-feed head. If you're already on EGO's 56V platform this is close to a default choice for edging; if you're starting a battery platform from scratch, weigh that premium against the RYOBI and Greenworks kits below.
Key Listed Features
56V EGO Power+ battery system, 4.0Ah battery and charger included plus a bonus 2.5Ah battery on this listing
16-inch cutting swath with dual 0.095-inch line
LINE IQ auto-sensing line feed (no manual bump-feed needed) plus POWERLOAD button-load line loading
Telescopic carbon fiber straight shaft; lifetime shaft warranty when registered within 90 days
