DEWALT20V MAX* String Trimmer Kit, 5-Ah (DCST922P1)

I love this thing. Very light, easy to handle. Has the simplest string replacement system I have ever seen on a weed eater.

Excelente herramienta. Hoy mismo la recibí y la use. Muy buena.

I purchased this w/ battery and charger because I have DeWalt drill which is outstanding. I had a Ryoby trimmer. It was junk and stopped working well after about dozen uses. Same w/ Ryoby blower. This DeWalt weed eater trimmer is extremely powerful. I had to cut thru very thickly rooted grass to fix a lawn sprinkler. ‘Piece of cake!" Assembles easy (but I’m pretty handy). The instructions are not that good but between them and the picture on the box it assembled in about 25 minutes. With good instructions, would be 7 minutes or less. There’s always youtube. This is not for edging per the instructions, but you can twist it sideways for trimming; but the head doesn’t turn 90 deg for that. It is extremely well balanced and it is long. I’m 5’10.5" and it is great. I think a smaller person -say 5’4" or less, may have trouble guiding it … not sure. Again, it is so very very easy to operate and very powerful. I did not time the battery but it lasted for all the work I had. You will not be disappointed. It’s worthwhile getting a good product to begin with, even if its $20-$40 more. You’ll save over $100 by not having to throw away a poor item.

Purchased on 6/20/2021RIP as of 5/22/2025I never cleaned it and I used it most of the time after mowing the lawn over the past 4 years. It appears the circuit board burned out due to debris getting inside the head and into the motor circuit board. (Prior to today I had no idea that was placed there.) While trimming today I saw a puff of smoke come out of the head as it stopped working.Four stars cause it worked great till it didn’t work anymore; and with minimal maintenance. (Just replacing trimmer line.)Took a star away for the design. Positioning the circuit board in a place where it will be spending its life in moisture and grass seems to be nonsense to me.*Pro tip if you get this make sure to regularly use compressed air to blow out the holes in the head of the trimmer. Hopefully it would help prolong the life of the unit.**As an additional note, these pix were taken after disassembly and cleaning it up to try and diagnose it.

This has plenty of power for a residential homeowner doing their own landscaping. Works great and I’m happy with it. Just make sure you have some fully charged spare batteries.

Love it, works great and long time with flexvolt batteries.

Dewalt Support Non Existent!!DO NOT BUY THIS DEWALT WEED TRIMMER, IT WILL FAIL AND THEY WILL IGNORE YOU! Customer support is very bad and there is no real support. This specific item has known issues which Dewalt will ignore. The first unit I purchased failed within 3 months. I had a very hard time getting needed support (they like to ignore your request for support, drag out the process by asking questions already answered, and then ignore you until you go away). Support prefers phone calls so that there is no official record or documentation. After months of going back and forth and just about throwing in the towel on the unit and brand, one supervisor came forward and actually did not right thing and helped me resolve the matter. Long story short, I am a long time customer of Dewalt and have many tools and storage units which have worked great. This specific weed trimmer package purchased (DCST9221) was great when it worked; light and easy to use. But when it failed, support was horrible and their tactics are to frustrate the customer until they give up. I say this because being a loyal customer, enjoying the light weight of the unit which made it easier to use for an older man, I MISTAKENLY gave Dewalt a second chance and purchased another unit thinking the first was an outlier. My second experience with this trimmer was only different in that the support was even worst then the first time. Once again the trimmer failed (according to the support, the motor failed which has been out of stock for months) after only6 uses; just outside of the 90 day return window. I contacted customer support and experienced the same run around only worse. Despite my request to escalate my complaint to a supervisor after months and months of contacting them, the same support person refuses to escalate my complaint and initially wanted me to send my unit thousands of miles, just to be checked; when we had a Dewalt service and repair a few miles away. The trimmer has been in for repair for three months with no completing date in sight and Dewalt won’t respond to any of my emails other than a generic; “Your request (11776241) has been received and is being reviewed by our support staff.” And then you hear nothing from them. Again, I loved Dewalt and have a lot of Dewalt tools and storage units, but their support is nonexistent and they will not help their customers when their faulty products fail. No loyalty for loyal customers. If you buy this trimmer you better hope it fails within the first 90 days, because their 1 year repair and parts, and 3 year warranty is useless. DO NOT BUY THIS ITEM!!!!

Durable, powerful, good battery life. Bit bulky but light enough for my bad back. Small spool included, recommend people buying this buy and extra spool.