DEWALT DCST990M1 40V MAX 4.0 Ah Lithium Ion XR String Trimmer

The DEWALT DCST990M1 40V MAX String Trimmer, 4AH features a patented gear drive design that provides more torque and maintains cut speed under load. This is contained within a metal gear case for better durability for heavy use. It has a variable speed trigger which gives you precise speed control when needed with power and performance to tackle thick growth. The 40v Max 4.0AH battery is inserted into a protecting cage and the Xenoy housing offers superior durability and impact resistance. This trimmer has a dual 0.080″ line with a bump feed head that gives the user control over the feed rate, along with a 15 inch cutting swath to help you get the job done faster. Includes: DCST990 String Trimmer, 40V MAX 4Ah Lithium Ion Battery, Charger, Auxiliary Handle and Guard, 0.080″ Line Prewound in Spool.

Product Features

  • Includes 40V MAX 4.0Ah Lithium Ion Battery, along with charger
  • Patented gear drive design housed in a metal gear case for durability
  • Full variable trigger allows you to have control over the speed and noise
  • Bump feed 0.080″ dual line
  • 15″ cutting swath
  • *Maximum initial battery voltage (measured without a workload) is 40 volts. Nominal voltage is 36

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3 Responses to DEWALT DCST990M1 40V MAX 4.0 Ah Lithium Ion XR String Trimmer

  1. Anonymous says:

    Great trimmer This is a nice trimmer I live on 10 acres and mow about 6. This trimmer with the 6ah battery I can do all my trimming and blowing everything off with just one battery. I compare the power of this trimmer to my echo srm 225. The dewalt trimmer powered through everything I threw at it and more. One thing I did do was replace the dewalt head with the echo 400 speed feed head I like the fact you can still use your favorite trimmer heads with this unit but I still used the dewalt line. I really…

  2. Anonymous says:

    1st Time Battery Guy Have been happy overall. Has great power as a trimmer. Every bit as much as the gas trimmer I was using. Battery life hasn’t been what the reviews seemed to indicate. I take care of two yards and get one yard per charge. Perhaps after the heavy edging that is involved in the spring this will improve. What I am getting out of the 4 amp hour battery is about 1/2 hour of use. I also changed to the .095 line. The .08 line that came with the unit didn’t hold up well. The manual said that…

  3. Anonymous says:

    Very Happy with this one! Met Expectations… I purchased the 6 AH model and once I got it unpack-aged and battery topped off I put it through its paces. It feels great and balance is good as any other trimmer I’ve owned. I live in a residential neighborhood on a corner and have quite a bit of trimming to do perimeter fence, house, rear slab for parking, driveway, trees etc..I wasn’t sure how much I would be able to get done, but I finished all my trimming and trimmed the neighbors front yard also. Still running strong I returned to trim…