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Model#: DEWNDCST990M1
Condition:
New

What are the different product conditions?

New
Brand new items;Full manufacturer warranty available
Reconditioned
Manufacturer inspected, repaired and tested items; CPO 60 day money back guarantee
Open Box
New or Recon items with possible minor cosmetic damage; CPO 60 day money back guarantee
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Returned items inspected, repaired and tested by CPO technicians; CPO 60 day money back guarantee

Dewalt DCST990M1 40V MAX 4.0 Ah Cordless Lithium-Ion XR Brushless 15 in. String Trimmer

New $269.00
Recon $169.00
List:
$329.99
Sale Price:
$269.00
You Save
18%
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(continental U.S.)
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    Express Delivery
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    Premium Delivery

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    Certain items require 2-3 business days to ship and is clearly indicated on the product page. These items cannot be expedited.

    Delivery times on Economy and Freight orders vary, exact delivery date cannot be determined.

  • Due to federal regulations, this product can only be shipped within the continental US. Express delivery not available.

Product Overview

Details

The Dewalt DCST990M1 40V MAX 4.0 Ah Cordless Lithium-Ion XR Brushless 15 in. String Trimmer features a variable speed trigger to give you precise speed control when needed with power and performance to tackle thick growth. The dual-line bump feed head clears a full 15 in., and the patented gear drive design amplifies torque enclosed in a metal gear case for high durability.
Features:
  • Brushless motor for a longer life
  • Dual 0.080 in. line with bump feed cuts through thick matter
  • Variable trigger with speed control provides precise speed control
  • Metal gear case for on the job durability
  • Patented gear drive design amplifies torque
Includes:
  • 40V MAX Cordless Lithium-Ion XR Brushless 15 in. String Trimmer - DCST990
  • 40V MAX 4.0 Ah Lithium-Ion Battery - DCB404
  • 40V MAX Lithium-Ion Battery Charger - DCB114
  • Auxiliary Handle and Guard
  • 0.080 in. Pre-wound Line in Spool

Specifications

Cordless: Yes
Weight: 13 lbs.
Batteries Included: 1
Battery Amp Hours: 4.0 Ah
Battery Type: Li-Ion
Cutting Width: 15 in.
Drive Shaft Style: Straight
Drive Shaft Type: Fixed Shaft
Handle Type: Wrap-Around
Line Diameter: 0.080 in.
Line Feed System: Semi-Automatic
No-Load Speed (RPM): 0 - 6,600
Speed Settings: 2
Voltage: 40V

Recommendations

Reviews

4.2 / 5.0
13 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
8
3
0
0
2
Recommendations
Yes, I would recommend this to a friend (11)
No, I would not recommend this to a friend (2)
Pros
Powerful (11)
Lightweight (6)
Cons
Heavy (1)
Best Uses
Frequent Use (1)
Recommendations
Yes, I would recommend this to a friend
Pros
Powerful
Lightweight
Great Trimmer
This is a great solution to the nightmares of two-stroke motors. It is so nice not to have to mix gas and oil, my garage actually doesn't smell like fuel anymore, and it is nice to have immediate action/power. Great product.
April 20, 2016
Recommendations
Yes, I would recommend this to a friend
Pros
Powerful
Should have bought this quality product to begin with.
Not the best design for trimming along a walkway as there is only one position for the head. Would like to see a design change that allowed for changing the cutting angle of the head, as well as being able to rotate the head 180 degrees. Also not sure about the ergonomics of the straight shaft with regards to a comfort level and reminds me a bit of the poor design CUBCADET had on their design. Would also have liked to see a second battery included in the price/package, as these types of batteries can have a short life and be very costly to replace. Has anyone thought outside the box and conducted a study for selling only the 6 Amp?
April 16, 2016
Recommendations
Yes, I would recommend this to a friend
Pros
Powerful
Lightweight
NO GRASS PATCH TO TALL OR THICK FOR THIS MACHINE
CLEAR TALL GRASS ON ONE ACRE FOR FIRE ABATEMENT. I USE WEED WHACKER TO SPARE AND ALLOW WILD FLOWERS TO RESEED. I'M TOO OLD TO BE MESSING AROUND WITH PULL CORDS, OIL, GAS, AND HAVE BETTER THINGS TO DO.
April 28, 2016
Recommendations
Yes, I would recommend this to a friend
Pros
Powerful
Lightweight
Hassle Free Yard Work
I live in Arizona, before I apply weed killer, I use the trimmer to knock down the weeds first. 40 volt battery, and I also bought a leaf blower and hedge trimmer. and they all use the same battery. I don't want to hassle with electrical cords or gas and oil mix.
June 16, 2016
Recommendations
Yes, I would recommend this to a friend
Pros
Powerful
Lightweight
Great piece of equipment, lots of power
Easy to use, lightweight, tons of power
April 19, 2016
Recommendations
Yes, I would recommend this to a friend
Pros
Powerful
Lightweight
Great Trimmer
I replaced my 4-Stroke Honda trimmer with this battery powered Dewalt trimmer. The Dewalt is lighter and has significantly less vibration. The power is as advertised - as good as a gas powered trimmer. I highly recommend this purchase.
July 25, 2016
Recommendations
Yes, I would recommend this to a friend
Pros
Powerful
Lightweight
Outstanding poroduct.
Use it for weeding, it has plenty of power.
August 1, 2016
Recommendations
Yes, I would recommend this to a friend
Pros
Powerful
Headline is very descriptive and concise
Powerful trimmer with plenty of battery life for my uses. The double string forces bumping when one string breaks before the other and that causes a little line loss each time.
August 3, 2016
Recommendations
Yes, I would recommend this to a friend
Pros
Powerful
No more trying to start that little gas engine!
I bought this trimmer to do away with the gas/oil mess. It is extremely convenient to be able to slide in the battery, pull the triggers and get after it... No mixing fuel... no pulling the start cord over and over and over hoping it will eventually start! This trimmer is every bit as powerful as any of the gas powered trimmers I have owned. It's also about as heavy and much longer too. When I leaned it up against the wall I noticed that it is about as tall as me (over 6') which actually helps to spread the weight out to make it feel more balanced. The battery lasts about 30-45 minutes of steady use switching from low speed to high as needed. I'm not a huge fan of bump feed as I tend to spend too much time re-feeding the line back through. All in all I am liking my new trimmer and have already recommended this product to several friends.
June 7, 2016
Recommendations
Yes, I would recommend this to a friend
Pros
Powerful
It works good, powerful, but HEAVY!
Had trouble with self feeding but finally got it working good
August 1, 2016

Questions & Answers

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 10 questions Browse 10 questions and 10 answers
Will the 20 volt work with the 40 volt
todd on Aug 2, 2016
BEST ANSWER: No, the two systems are not cross compatible
how do you put new line on spool?????????????????
we have tried for over a half hour.
please help.
thanks
Michael on Jul 9, 2016
BEST ANSWER: Please contact Dewalt direct for technical support. You can reach them at 800-433-9258
Where can I get a replacement spool of string
Oly on May 7, 2016
BEST ANSWER: Cpo does carry replacement spool of sting or this item.
Dewalt DWO1DT802 0.080 in. x 225 ft. String Trimmer Line $13.99
Dewalt DWO1DT801 0.080 in. x 50 ft. String Trimmer Line $6.99
Is the recon 40 volt dewalt string trimmer included in the free battery rebate program
Flapp on Apr 27, 2016
BEST ANSWER: No,Dewalt is not running a free battery promotion for the string trimmer.
how long of time in one continual use do the battery last ?
Unlucky on Dec 11, 2015
BEST ANSWER: The battery run time will range from 15-30 minutes based on usage
I noticed an extended flat plate at the base of the battery housing. is there a wall hanging accessory for this plate to hang on? If so, where do I get one?
Fernando, retired on Jul 7, 2015
BEST ANSWER: This trimmer does not come with a wall mounting bracket nor is there a dedicated bracket.Might want to try the Gladiator wall mounting kit.
What is the expected life time of the battery for normal home usage?
RB on Jun 14, 2015
BEST ANSWER: The battery lasts about an hour.
Does DeWalt make an edger
PONCHO on Jun 5, 2015
BEST ANSWER: They make a trimmer but not an edger at this time.
How long does it take to recharge the battery? Also how long do these 40V batteries last?
Yard Diva on May 10, 2015
BEST ANSWER: This kit comes with a 45 minute charger. Theoretically, the battery will last 45-55 minutes. Practically, it depends on how hard you push the unit.
How long is the battery life before next recharge?
Tony on Apr 23, 2015
BEST ANSWER: That really depends on the usage. In our estimates that battery cycle can range from 25 - 50+ minutes depending on how its used.

New Vs. Reconditioned

What's the difference between New and Factory-Reconditioned?

Factory-Reconditioned products have been returned to the manufacturer and are restored to like-new operating condition; they go through a rigorous testing and inspection process. Plus, they offer a significant savings vs. new.
  • Reconditioned products may have minor cosmetic blemishes or scratches that do not affect item performance.
  • Reconditioned products may not come with all of the consumables the new version comes with (bits, sanding pads/papers, cases, etc.).
  • Both come with a manufacturer warranty and are covered by our Money Back Guarantee; New is 30 days, Reconditioned is 60 days.
Condition: New Factory Reconditioned
Features: Same Same
Specs: Same Same
Includes: 40V MAX Cordless Lithium-Ion XR Brushless 15 in. String Trimmer - DCST990,
40V MAX 4.0 Ah Lithium-Ion Battery - DCB404,
40V MAX Lithium-Ion Battery Charger - DCB114,
Auxiliary Handle and Guard,
0.080 in. Pre-wound Line in Spool
40V MAX Cordless Lithium-Ion XR Brushless 15 in. String Trimmer - DCST990R,
40V MAX 4.0 Ah Lithium-Ion Battery - DCB404,
40V MAX Lithium-Ion Battery Charger - DCB114,
Auxiliary Handle and Guard
Availability: In Stock In Stock
Warranty: null null
Price: $269.00 $169.00
You Save: N/A $100.00 (37%)

Christmas Shipping Cut Offs

Enter your zip code for estimated shipping dates

Order by the dates below to get delivery by Christmas
Standard Delivery *Enter zip code for order by date
Express Delivery
Priority Delivery
Premium Delivery

Orders must be placed by 5PM EST.

Certain items require 2-3 business days to ship and is clearly indicated on the product page. These items cannot be expedited.

Delivery times on Economy and Freight orders vary, exact delivery date cannot be determined.