Professional Tool Reviews for Pros

The EGO Line IQ battery-powered string trimmer is everything you hope would come from the sum of EGO's impressive innovation: it's the easiest to use with the high performance and low vibration we've come to expect. Can you ask for anything better than that?

EGO makes some of the best battery-powered string trimmers for homeowners thanks to their solid performance and low vibration. The line also has some of the top innovations and we’re seeing that again in the EGO Line IQ battery-powered string trimmer.

Without a doubt, the biggest talking point is EGO’s latest innovation—Line IQ. In the simplest terms, it automatically feeds the line to keep your cutting swath at 16 inches without needing to bump the head as you go.

As we used the trimmer, we paid close attention to how the line feeds. If either end gets too short (~7 inches), the head automatically releases additional line. It’s that simple.

One thing to note is the cutter is not able to flip and give you two cutting diameter options like some. The Line IQ sensor is specifically dialed in to keep the line at 16 inches total swath.

EGO also includes their PowerLoad design on the trimmer. To load it, simply pull your new line through the head to the middle of its length, push the PowerLoad button, and the motor automatically winds it in. It takes a couple of tries to get used to, but once you do, it’s the easiest line change ever.

Like some battery-powered string trimmers, the Line IQ has two speeds plus a variable speed trigger. What’s unusual about EGO’s design is the LED indicator to let you know which one you’re in.

Use low speed (3500 – 4800 RPM) when you need to extend your runtime. Kick into high (4000 – 5500 RPM) when you want to work more quickly or have to deal with thicker overgrowth.

All of that’s great, but it still has to cut grass. With the 0.095-inch line that comes from EGO, it does an excellent job, especially at high speed. If you switch over to something like Echo’s Black Diamond it gets even better. That said, you have to check out EGO’s dual-color replacement line. It switches from orange to yellow right at the halfway point, making line changes that much easier.

What’s really helpful is not having to stop and bump. That’s actually underselling it a bit. You don’t realize how nice it is to not bump your way through the lawn until you’re not bumping your way through the lawn. It’s fantastic! Not only were we able to keep trimming at a more consistent pace, but we also weren’t searching for a hard surface to extend the line or cutting the grass lower than the rest by bumping it along the way.

For runtime, we tested the 4.0Ah battery that came in our kit and ran for 1 hour and 4 minutes… at high speed! For most lawns, you can save some weight and run a 2.5Ah battery if you like.

The deal gets even sweeter with a telescoping carbon fiber shaft. It’s more than strong enough for the job, reduces the overall weight of the trimmer, and gives you some length adjustment to dial in the right fit for you. Is as simple as flipping a quick clamp lever, shortening or lengthening, and flipping the clamp back down.

Another really nice feature is the quick clamp handle adjustment. Just flip it open, adjust the handle where you like it (including angled to the side), and lock it back down. If multiple people are using your trimmer, the simple tool-free adjustments make getting the right fit much easier than other string trimmers.

Thanks in part to the carbon fiber shaft, the bare weight is just 7.7 pounds. Adding a 4.0Ah battery to the mix brings the total weight to about 12.5 pounds With that battery installed and the weight of the brushless motor at the trimmer head, it’s easy to dial in a good balance.

The trimmer is easy to handle, but if you would like to add a shoulder strap, EGO includes a removable clip point in the box. It installs just below the throttle and you have about 6 inches of length to help you find the best balance point.

Retail pricing is $299 for a kit that includes a 4.0Ah battery and charger. There’s also a bare tool option for $199.

As always, EGO backs this trimmer with a 5-year warranty. The carbon fiber shaft is guaranteed for life.

The EGO Line IQ battery-powered string trimmer is everything you hope would come from the sum of EGO’s impressive innovation: it’s even easier to use than previous models with the high performance and low vibration we’ve come to expect. Can you ask for anything better than that?

Discover more EGO products here!

On the clock, Kenny dives deep to discover the practical limits and comparative differences for all kinds of tools. Off the clock, his faith and love for his family are his top priorities, and you'll typically find him in the kitchen, on his bike (he's an Ironman), or taking folks out for a day of fishing on Tampa Bay.

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How exactly does the IQ function work? Inertially/mechanically or by some sort of electronic sensor? Reason I ask is I wonder if these IQ heads will fit and work on my Ego 1521S Powerload trimmer. Ego won’t answer the question because, of course, they want to make us buy a whole new trimmer.

What’s the cost of an extra 4.AH battery?

Can you use non-EGO line with this trimmer? as long as it is 0.095″ size?

Does the trimmer still keep the 16 inches of line length if the the guard that cuts the line is removed.? Thanks

The article says no cons. It is the most expensive battery powered trimmer so I think that is a con.

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Professional Tool Reviews for Pros