Verdict
Head-to-head · Best String Trimmers

EGO Power+ ST1623T 16-Inch Line IQ 56V vs Husqvarna 525L 25.4cc Gas String Trimmer

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

EGO Power+ ST1623T 16-Inch Line IQ 56V comes out ahead by a clear margin (4.7 vs 4.3). The gap is mostly about Suburban homeowners with 1/4 to 1 acre who want gas-class power, hate refueling, and don't mind a heavier tool for the convenience of auto line feed. — read the strengths below before deciding.

EGO Power+ ST1623T 16-Inch Line IQ 56V
Higher ratedRanked #1 in Best String Trimmers
EGO Power+ ST1623T 16-Inch Line IQ 56V
3 sources2 derived$498as of Aug 1

A brushless 56V motor pairs with auto-feeding Line IQ and EGO's POWERLOAD spool on the ST1623T, so most owners go a full season without ever touching the head. Pro Tool Reviews ran it for over an hour on a single 4.0Ah pack and scored it 9.7/10. The trade-offs are a 12.6 lb working weight and a price north of $300. For a homeowner who wants gas-class performance without the maintenance, no other cordless trimmer matches this combination of cutting width, ergonomics and warranty.

Strengths
  • 16-inch swath with Line IQ auto-feed eliminates the bump-feed dance
  • POWERLOAD spool reload takes under 30 seconds with the included pre-cut line
  • Telescopic carbon-fiber shaft carries a lifetime warranty
Watch-outs
  • 12.6 lb working weight is on the heavy end of cordless picks
  • Line IQ can shed string faster than it feeds when trimming hard fence lines
  • Recharge time stretches to roughly 70 minutes on the standard 320W charger
Husqvarna 525L 25.4cc Gas String Trimmer
Ranked #3 in Best String Trimmers
Husqvarna 525L 25.4cc Gas String Trimmer
2 sourcesall derived$350as of Aug 1

At 9.7 lb dry, the Husqvarna 525L is the lightest 25cc pro-grade gas trimmer most homeowners will encounter, with the brand's X-Torq engine putting 1.21 hp into an 18.1-inch cutting swath. Pro Tool Reviews scored the closely related 525LS at 8.8/10 and ranked the 525LST third overall in their gas trimmer shootout at 89 points. Recoil is the soft spot, and you're still pumping mixed gas. For landscapers and homeowners running multi-acre lots in heavy growth, this is the trimmer that earns its keep all day.

Strengths
  • Pro-grade 25.4cc X-Torq engine produces 1.21 hp at 6,500 rpm
  • 9.7 lb dry weight is exceptionally light for a 25cc straight-shaft
  • Tap'n Go bump head reloads quickly and accepts standard 0.095-inch line
Watch-outs
  • Pull-start recoil is the part most commonly cited as a weak point
  • Two-stroke fuel mixing required and emissions/noise rule it out for some neighborhoods
  • Two-year limited warranty trails some battery competitors on coverage

Derived means the reviewer published no score, so one was inferred from their written verdict. Everything else is a number the publisher printed. How we rank.

How they stack up

EGO Power+ ST1623T 16-Inch Line IQ 56V

Outclasses the Worx WG170 GT Revolution on cutting width (16 in vs 12 in), runtime, and build, but you pay nearly triple. Sits below the Husqvarna 525L on raw cutting torque in heavy weeds but matches it on noise, fumes, and warm-up time.

Husqvarna 525L 25.4cc Gas String Trimmer

Outcuts every battery option in this list — including the EGO ST1623T and Ryobi RY402110 — in tall heavy weeds thanks to the X-Torq powerband. The trade is the only gas pick here: fuel mixing and pull starts the cordless picks don't ask of you. About 3 lb lighter than other 25cc+ pro gas trimmers in its class.

Specs side-by-side

SpecEGO Power+ ST1623T 16-Inch Line IQ 56VHusqvarna 525L 25.4cc Gas String Trimmer
Power Source56V battery (4.0Ah included)Gas (2-cycle, 50:1 mix)
Cutting Width16 in18.1 in
Line Diameter0.095 in
RuntimeUp to 60 min
ShaftTelescopic carbon fiber
Weight (with battery)12.6 lb
Line FeedLine IQ auto-feed + POWERLOADTap'n Go bump head
Warranty5-year tool, 3-year battery, lifetime shaft2-year limited consumer
Dimensions16"L x 16"W
Engine Displacement25.4 cc
Output Power1.21 hp
Fuel Tank17.25 fl oz
Weight (dry)9.7 lb
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