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FLEXVOLT 60V MAX 16 in. Brushless Cordless Battery Powered String Trimmer (Tool Only)

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  • High-efficiency brushless weed trimmer
  • Lightweight design for increased comfort and reduced fatigue
  • Battery and charger sold separately
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Product Details

About This Product

Get your lawn work done with this DeWalt string trimmer. A 15-in. swath lets you trim grass quickly. To power through overgrowth, it features a gear drive. The variable-speed trigger and high-efficiency brushless motor give you more run time. For superior control, it offers a lightweight, ergonomic design.


Product Information

Internet # 304154594

Model # DCST970B


Dimensions: H 43.567 in, W 10.879 in, D 12.192 in


Assembled Depth (in.)

12.192 in

Assembled Height (in.)

43.567 in

Assembled Width (in.)

10.879 in

Line Style Size


Maximum Cutting Path Diameter (in.)

15 in

Recommended Line Diameter (in.)

.080 in

Shaft Length (in.)

52 in


Assembly Required


Battery Amp Hours

No Battery

Battery Run Time (min.)


Battery Type

Lithium Ion

Battery Voltage (V)



Tool Only

Charger Included

Charger Not Included


No Additional Features

Head Type

Wind with Assembly


No Additional Items Included

Line Advance System


Number of Total Batteries Included


Number of Trim Lines


Power Type


Product Weight (lb.)

13 lb





Shaft Type

Straight Shaft

Start Type


Tools Included

String Trimmer

Trimmer Line Type


Trimmer Type


Warranty / Certifications

Manufacturer Warranty

3 Year Limited Warranty; 1 Year Free Service; 90 Day Money Back Guarantee

Questions & Answers

Q:Where do I find a list of string trimmers attachment capable?
by|Jun 16, 2024
0 Answer
Answer This Question
Q:Why is the Dewalt DCST970X1S not attachment capable? The head that comes with it is crap and I would like to put something on it that will cut through heavier grass and brush.
by|May 12, 2024
1 Answer
Answer This Question

A:  It is simply not designed to take attachments. There are other models which are 60v that do take attachments.

by|May 17, 2024
    Q:Can I reverse the rotation of the string? This spends the opposite direction of all my previous gas trimmers. I will have to do everything backwards to throw the grass the way I want to. After decades of developing a muscle memory, I’m not sure if I can.
    by|Apr 9, 2024
    1 Answer
    Answer This Question

    A:  Unfortunately, it's not possible.

    by|Apr 18, 2024
      Q:What’s the difference between this and the 972?
      by|Nov 4, 2023
      1 Answer
      Answer This Question

      A:  The 972 model is attachment capable.

      by|Jun 13, 2024
        1 found this answer helpful
        Showing 1-4 of 110

        Customer Reviews

        4.3 out of 5

        • 4.3 out of 1,000 reviews
        • 64% recommend this product
        Filter by:
        Showing 1-10 of 1,000 reviews
        Dewalt Warranty is a joke
        I have had this less than a year and After 3 hours of emails back and forth ( they can't ask for all Infromation at once when bought etc.) they sent a link to Service center locator. When I put in my zip code I get No Results Found. I did find an authorized repair shop on my own but have to drive 90 miles to have them look at it. I have also found that you have to keep cleaning the head off so that the clippings don't plug the air vents off on the head.
        Response from DewaltProductExpertJun 13, 2023
        Thank you for taking the time to provide your feedback. I'm sorry you weren't pleased with the Trimmer. Your feedback is valuable as we take into consideration every piece of feedback that we come across. I will pass this along to our team for review.
        If you would like further assistance, please email support at wecare@sbdinc.com and reference ticket (#7379711).
        Thanks, Maria DEWALT
          2 found this review helpful
          Buy it
          I was skeptical to buy based on the bad reviews. This is a quality piece of equipment. It’s about the same weight as a gas trimmer but is very well balanced and has just as much probably more power. Old 20v trimmer went through 3 batteries to do our estate size yard and this one finishes with 1 charge and power to spare. A solid 50 minute task. I would recommend buying the larger guard part number N512929 makes a big difference in discharge amount and user cleanliness. My only complaint is there isn’t an edger attachment.
            • Recommended
            4 found this review helpful
            The trimmer has plenty of power but even on low I can't finish my 1 acre lot with the 9ah battery. The guard does almost nothing to stop debris and the motor is always covered in grass trimmings. I vacuumed mine out. I've used it under 10 times and today 2 minutes into trimming I had to keep bumping it because string wouldn't feed out. Only slightly harder than usual and the shaft bent. Still works but I'm returning immediately. I was very hopeful switching from a gas weed trimmer. Now I have to figure out something else.
              8 found this review helpful
              Broke after 1 year of use
              This trimmer was great while it was working and not so much once it quite working. Ive owned the trimmer about a year before it stopped working. Used only about 1-2 times a month during the mowi g season. I was weedeating when it just quite. Thought it was battery, but it still showed a charge. Swapped batteries and still nothing. Opened the weedeater up and the inside is completely black from where the wires melted and apparently exploded. I will not be buying another electric weedeater for a while and i was excited about it cause im all for stop using 4-cycle mixtures.
              Response from DewaltProductExpertSep 24, 2020
              Hi Mrmechanic
              Thank you for providing your feedback and we are sorry to hear about the unit no longer working. Your feedback will help us to better our current and future products. Please contact Customer Support at WECARE@sbdinc.com and provide case # 12327281 if you have any additional questions or concerns that we may assist you with.
              Thank you
                8 found this review helpful
                Title above says 3 Ah but it actually came with a 9 Ah battery. This trimmer is a BEAST. I got fo...
                Title above says 3 Ah but it actually came with a 9 Ah battery. This trimmer is a BEAST. I got for Christmas a two pack of 6 Ah batteries that also work with this. My first job was a 4 foot by 80 foot clearing beneath a retaining wall. Some grass, mostly thick trunked weeds including some thistle and milk weed. It literally devoured it all. All done using the thinner .85 line. Battery only went down one light. I also own an Echo gas trimmer. I much prefer this Dewalt. Two observations: be prepared to shower after. It spews wet bits everywhere and you will be covered. Another thing is the motor vents get covered near instantly. Seems no good way to clean out. Lastly, I got to a patch of tall thin grass. Some so long it caused to wrap around the shaft. Not too hard to remove, yet not easy either.
                • DIY
                • Verified Purchase
                • Recommended
                6 found this review helpful
                Love the concept. Still needs work.
                Purchased this 3 days ago. I'm not able to pull the string of a gas trimmer hard enough to start it, so we thought this would be perfect for me. After 4 battery cycles over 2 days, we're going to return it. First the good: -- I love the concept. It was so easy to use. Click the battery in and squeeze the trigger. -- Cuts great. -- Good power that stays strong right up until the battery dies. -- The battery took about 2 1/2 hours to charge from completely drained to fully-charged. -- It took about 20-25 minutes to drain cutting weeds on high power. -- Nicely weight-balanced so I'm not leaning to compensate to hold it up. Then the bad: I used it a total of 90 minutes over 2 days, which equaled 4 cycles of the battery being fully-charged. I'm including several photos. -- The battery is hard to get out of the charger and off of the trimmer. This was made for somebody with very strong hands. -- The manual says to make sure the air vents are kept clear. This is IMPOSSIBLE in this design. They were covered with bits of grass within 5 minutes. Had to stop trimming and brush it out repeatedly. -- Even after brushing out the grass bits from the air vents, there is still smaller grass bits stuck inside that can't be reached to be removed. See photos. -- I had to add string twice in the 90 minutes total trim time I used this. Both times it was nearly impossible for me to turn the ring while holding the head. I had to have my husband do it, and he had difficulty the second time. -- I figured out the reason for the difficulty when I couldn't get the string to advance either. Tiny bits of grass had caked up in the space between the ring and the trimmer head. I scraped out about 1/4" thick ring of caked grass before my last time using the trimmer. -- As the trimmer head is spinning, grass gets twisted around it. A lot of grass gets stuck up under the trimmer head so that you can't get it out. There is no way to take the trimmer head off, that I can see, so it isn't going anywhere. It interferes with the spinning of the trimmer head while it's running and it interferes with the release of the string when you bump it. The last cycle I used the trimmer, I stopped at least 5 times to pull out the grass I could reach from around the trimmer head. I loved the ease of starting and handling this trimmer. For the price of the trimmer and the extra battery you need if you want to trim for more than 25 minutes at a time, I'd have expected a better design of the vents, the way to load the string, and the trimmer head itself. I wouldn't recommend it to anybody who has anything more than 5" high grass around a small yard to trim. Higher or thicker than that or a larger yard, you're going to need 2 batteries and you might be stopping a lot to clean out the vents and remove the grass from under the head.
                Response from DewaltProductExpertJul 29, 2020
                Hi, we're sorry to hear of the trouble you are having with the DCST970X1S. We would appreciate the chance to speak with and assist you. Please email wecare@sbdinc.com and reference case #11952538. Many Thanks, Mitzy DEWALT Customer Care
                  17 found this review helpful
                  Awsome Trimmer
                  Was skeptical about the battery power but was definitely worth the money. Did my whole yard about a acre with one charge. Great product and would recommend for anyone.
                    • Recommended
                    1 found this review helpful
                    Uncomfortable and short-lasting.
                    uncomfortable and short-lasting. the battery is very difficult to remove. the angle at which it is made is very uncomfortable. Also, I have less than a year with it and I don't use it all the time, let's say I have used it for 25 to 30 times. and it already broke in the part where line a is placed.
                    Response from DewaltProductExpertApr 9, 2020
                    Hello Alma81,

                    We apologize for any trouble or inconvenience with brushless string grass trimmer model number DCST970X1S. Please reach out to us at WECARE@sbdinc.com and reference case number 11363789 so that we can work together in order to resolve this issue for you. Thank you for your cooperation in this matter.

                    Best Regards,

                      3 found this review helpful
                      Great weed eater
                      [This review was collected as part of a promotion.] I bought this ability 4 months ago and used it many times. Works very well, cuts great and battery last for about an hour.
                        • Recommended
                        This is incredibly power and has great runtime. Unfortunately, the quality and attention to detai...
                        This is incredibly power and has great runtime. Unfortunately, the quality and attention to detail are not up to DeWalt's typically high standards. I have three main issues: 1. The guard is very small. You can replace this, but you shouldn't have to at this price point. Make sure you wear long pants that you don't mind getting dirty. 2. The motor is on the head of the trimmer. This makes the balance pretty nice actually, but causes the air intake to easily clog with grass. Depending on how wet your grass is, this can be very difficult/annoying to clean out. Because the motor is at the end, the wiring has to run through the shaft. If anything happens to your shaft, you need to disassemble the motor in order to repair the shaft. Which brings me to the last issue... 3. The shaft is really weak. After using it once and bumping the spool twice to feed line, the shaft already had a noticeable bend to it. Once a bend starts, it only gets worse. Home Depot kindly exchanged it, but this is clearly a weak shaft design for a trimmer with bump feed string. Still, there are not a lot of great alternatives in the electric string trimmer space so these limitations aren't enough to make another option more compelling. But it is unfortunate for a company so focused on quality and longevity.
                          • Recommended
                          10 found this review helpful
                          Showing 1-10 of 1,000 reviews

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