Blog Post Refresh Testing

Blog Post Refresh Testing
Milwaukee M18 Fuel Dual Battery

Milwaukee M18 Fuel Dual Battery 3006

SCORE: 78 POINTS

  • Max Speeds: 4900/6200 RPM
  • Max Line Diameter: 0.105 in.
  • Cutting Swath: 17 in.
  • Stock Head: Dual-line, rapid load
  • Length: 73.4 in.
  • Weight: 16.8 lbs w/2 x 8.0Ah batteries
  • Bare Price: $399
  • Kit Price: $699 w/two x 8.0Ah High Output batteries

PROS

  • Extremely powerful
  • High cutting speed
  • Large cutting swath
  • 0.105-in. line capable
  • Includes a rapid load head
  • Includes a shoulder strap
  • Accelerators to full speed in less than 1 second
  • 2.5 Nm peak torque
  • 2.5HP peak power

CONS

  • Heavy
  • Frequent line breaks when cutting heavy cover
  • Expensive

Milwaukee’s M18 Fuel Dual-Battery String Trimmer emerged as the most powerful model we tested. While its cutting swath isn’t quite as large as Makita’s GRU07 and Husqvarna’s 525iLST, we could feel the additional muscle Milwaukee’s brushless motor produced.

Its two-battery design puts 288Wh of capacity on board when you use a pair of 8.0Ah High Output batteries that netted more than 30 minutes of runtime during our review. From an efficiency standpoint, it’s solid as well, tying for second place. That’s impressive considering the noticeable power difference.

The downside is that it’s also the heaviest model in this group. However, there’s a shoulder strap that comes with the tool that I highly recommend you take advantage of when you’re trimming larger properties.

TOP SCORING BATTERY-POWERED STRING TRIMMERS

Best Overall: 93 Points

Husqvarna
525iLST

Husqvarna

Runner Up: 88 Points

ECHO
DSRM-2600

ECHO

Third Place: 87 Points

Greenworks Commercial
ST161

Greenworks

related links

  • Other Trimmers We Tested
  • Best Battery-Powered String Trimmers for Homeowners

While we love Husqvarna’s 520 iLX for its balance of light weight, low vibration, and maintenance cutting, the 525iLST offers more muscle and a larger swath to make quick work of roadside, ditch, and large area cutting. However, while its 25cc gas equivalent power is excellent for maintenance and moderate overgrowth, it doesn’t have as much power as some of the others on our list.

We tested with Husqvarna’s 9.0Ah battery and measured impressive cutting speed and runtime while keeping the weight manageable near the 13-pound mark. With backpack battery options also available, you can substantially extend that runtime and significantly reduce the amount of weight in your hands. It’s an excellent choice for Pro crews who need mid-range power and long runtime.

Result Ranking (Out of 8)
Battery Used 9.0Ah
Tested Top Speed 5490 RPM 7th
Cutting Speed 8.8 sec. 3rd
Runtime 40.3 min. 1st
Battery Efficiency 7.0 sec/Wh 2nd (tie)
Vibration Control 2 out of 5 2nd (tie)
Balance 4.3 lbs., front bias 3rd (tie)
Line Loading 2 out of 5 7th