RYOBI 18V ONE+ 10-inch Cordless Battery String Trimmer and B

The Verdict

Let’s be straight about the RYOBI 18V ONE+ 10-inch Cordless String Trimmer: this is not a gas-powered replacement. It’s a lightweight, battery-powered trimmer built for maintenance, not heavy brush clearing. If you’ve got a quarter-acre lot with light grass and want to ditch the pull-start hassle, this is worth a hard look. If you’re trying to tame blackberry thickets, keep scrolling.

What’s Actually in the Box

The package includes the trimmer head, a straight shaft, the bump feed head with pre-wound dual line, a 1.5Ah ONE+ battery, and a charger. No shoulder strap — you’ll notice that when you’re edging for 20 minutes straight. The whole thing assembles in about two minutes with a single push-and-click mechanism. No tools required.

As shown in the product image, the trimmer has a compact, balanced design with the motor positioned at the base. The 10-inch cutting swath is the headline feature here — that’s two inches wider than RYOBI’s cheaper 8-inch models. In practice, that means fewer passes along fence lines and walkways. It’s not a huge difference, but over a full yard, it saves real time.

Real-World Performance

Let’s talk about what 18 volts actually gets you. On a standard suburban lawn with dry grass, this trimmer handles the job cleanly. The dual-line bump feed works reliably — tap the head on the ground and you get fresh line without stopping. The line itself is 0.065 inches, which is on the thinner side. That’s fine for grass but marginal for anything woody.

The runtime is where the reality check comes in. With the included 1.5Ah battery, you’re looking at roughly 15-20 minutes of continuous trimming. That’s enough for a typical 5,000-square-foot lot if you’re efficient. But if you have a bigger yard, you’ll want a second battery — and that’s where the ONE+ platform shines. If you already own any RYOBI 18V tool, you likely have compatible batteries sitting in your garage right now.

One thing that consistently stands out in customer feedback is the balance. One reviewer noted, “The weight distribution is excellent — my arm doesn’t fatigue like it did with my old gas trimmer.” Another mentioned the quiet operation: “I can trim at 7 AM without the neighbors hating me.” Both are legitimate advantages over gas alternatives.

Where It Falls Short

The honest downsides are real. First, the power ceiling. This trimmer bogs down noticeably in thick, damp grass or when you hit a patch of weeds. It’s not a stall — but the line slows, and you’ll find yourself going back over the same spot. Second, the single fixed speed is a genuine annoyance. There’s no trigger modulation, so fine edging along a sidewalk requires a delicate touch that the tool doesn’t really support.

The 1.5Ah battery is also a weak point. It’s the smallest battery RYOBI makes, and it feels like a cost-saving move rather than a thoughtful inclusion. Many buyers find themselves upgrading to a 4Ah battery within the first month — that’s an additional $70-90 expense you should budget for.

Who Should Buy This

This trimmer is ideal for three specific buyers: The RYOBI ecosystem owner who already has 4Ah+ batteries and wants a trimmer for $50 less than buying bare. The small-lot homeowner with under a quarter-acre who trims for 15 minutes a week. The noise-sensitive user in a tight neighborhood where gas engines draw complaints.

Skip it if you have a large property, deal with heavy brush, or expect gas-level power. You’ll be frustrated by the limitations.

FAQ

Q: Will this work with my older RYOBI ONE+ batteries? A: Yes. The ONE+ platform is backward and forward compatible. Any 18V battery from the last 15 years fits this trimmer.

Q: How long does the line last? A: A full bump-feed spool lasts about 3-4 typical trimming sessions on a standard lot. Buying replacement spools is cheap — around $10 for a three-pack.

Q: Can I use this for edging sidewalks? A: It’s possible but not ideal. The single-speed operation makes precise edging tricky. You can rotate the head, but you’ll want a steady hand.

The Verdict

Rating: 4.2/5

Buy it if: You’re already invested in RYOBI’s ONE+ platform, have a small-to-medium yard, or want a quiet, lightweight trimmer for routine maintenance.

Skip it if: You’re expecting gas-level power, have a large property, or are starting fresh with no RYOBI batteries — the total cost of entry gets steep when you factor in a proper battery upgrade.

This is a solid, dependable tool that does exactly what it promises. Just know its limits going in, and budget for a bigger battery. It’s not the most exciting purchase you’ll make this year, but it’s the kind of tool that quietly earns its place in your garage.

Where to Buy

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.