DeWalt FlexVolt 60V Universal Attachment String Trimmer: A Year-Long Review

Introduction

The DeWalt FlexVolt 60V Universal Attachment String Trimmer has now spent nearly a full year at my house, and after a season of regular use I have a fairly clear picture of what it does brilliantly and where it falls short. This is a 60V power head that accepts any attachment marketed as universal, which means it can grow with you beyond just string trimming. If you are considering it this season, here is the honest breakdown after a year of ownership.

What This Trimmer Is

DeWalt built this as a 60-volt tool, which is the key detail to understand before buying. It will not accept 20V batteries, so you need to already be invested in the 60V FlexVolt platform or be ready to commit to it. The battery itself is compact, but the unit weighs quite a bit overall, and because of how the weight is distributed the balance feels a little off until you adjust how you hold it. It is also a bit shorter than many comparable trimmers, so taller users may find themselves bending over slightly more than they would like.

The Trimmer Head: Handle With Care

The trimmer head offers a 15 to 17 inch swath and is a speed-load design, so feeding new line in is quick and painless. The catch is durability. If you habitually pound the head against the ground or rocks to advance line, you will find it breaks quite quickly. Several friends who own this trimmer have had the same experience. The good news is the replacement head is not expensive at around thirty dollars, and the unit accepts many other heads on the market, so you are not locked in.

The lesson after a year is simple: be gentle. Treat the head well, and if it stops feeding line, stop and inspect it rather than continuing to beat it against the ground.

The Trigger and Safety System

The trigger on this trimmer feels the most gas-like of any battery unit I have used, but it works differently than a gas throttle. It is a stepped trigger rather than fully variable, meaning it bumps the motor through several fixed power points as you squeeze rather than ramping smoothly. Most people adapt to this quickly, but it is worth knowing before you buy if variable throttle control matters to you.

The safety system is the bigger annoyance in actual use. You have to push a lever over, hold it down, and then pull the trigger, or the trigger stays locked out. This is excellent for transport, where you are tossing the unit into a truck bed with other equipment. It is far less convenient when you are actively working in the yard and stopping frequently.

Power, Smoothness, and Cutting Performance

This is where the trimmer earns its recommendation. There is a lot of power on tap. Low speed runs around 4,000 RPM while high tops out near 5,800, but with a 17 inch swath the line speed is impressive and it cuts like a beast. I have run it with .080 line the entire year because it works great; some people step up to .095, and I can see why, but for most household work the .080 is plenty and upgrading to thicker line would cost additional runtime.

Equally important, it is butter smooth. There is essentially zero vibration felt through the grip, which means you can genuinely use this all day and enjoy doing it. It reminds me of using a Stihl in terms of smoothness, which is high praise for a battery tool.

Runtime and Battery Considerations

Runtime is the main compromise. Pushing this trimmer hard through solid, heavy grass gives about 10 minutes with a 9Ah battery. For normal household trimming, expect 20 to 25 minutes. In my yard that translates to roughly two to three cuts per battery, with the third cut often running the battery nearly dead.

This is precisely why it lives at my house instead of in the contractor trailer. A crew would need to carry two batteries to match the work another machine does with one. Around the home, running on low speed works surprisingly well for conserving battery, and this is one of the few trimmers where I actually use the low setting regularly.

One practical suggestion: stepping up to a 12Ah battery would meaningfully improve runtime without adding much weight, and that combination would put this unit right in the territory of competing models with smaller packs.

Buying Advice

If you do not need super long runtime, want genuine cutting power, and either own universal attachments or plan to buy more, this is an excellent buy. The smoothness alone makes it enjoyable, and the safety flip lever can even be modified by removing a pin so the annoying flip part disappears while the safety remains. The homeowner who wants power and smoothness in one package will be very happy here.

Conclusion

After a year, I would still highly recommend the DeWalt FlexVolt 60V Universal Attachment String Trimmer with a couple of caveats. Respect the trimmer head and it will serve you fine, and consider a larger battery if runtime is a priority. For a homeowner who values power, a wide swath, and remarkably smooth operation, it remains one of the most pleasant battery trimmers to use.