For most residential yards, cordless string trimmers have reached the point where gas is no longer necessary. Modern battery models start instantly, require very little maintenance, and avoid fuel storage, mixing, fumes, and pull cords.
The biggest buying decision is not simply cutting power. It is which battery ecosystem makes sense for your yard equipment.
Quick Picks
- Best Overall: EGO Power+ 56V String Trimmer
- Best Value: Ryobi 40V HP Brushless String Trimmer
- Best for DeWalt Owners: DeWalt 20V MAX XR String Trimmer
- Best for Battery-Ecosystem Buyers: Match the system you already own
Best Overall: EGO Power+ 56V String Trimmer
EGO has built its 56V platform specifically around outdoor power equipment, making its string trimmers attractive for homeowners who want to use the same batteries across blowers, mowers, chainsaws, and other yard tools. For buyers starting fresh, an outdoor-focused battery system can make more sense than choosing each yard tool independently.
Best for: Homeowners building a cordless outdoor-power collection from scratch.
Best Value: Ryobi 40V HP Brushless String Trimmer
Ryobi’s 40V outdoor platform gives homeowners access to a broad range of lawn equipment while generally keeping pricing below the premium end of the market. A 40V battery purchased for a trimmer can later serve other compatible yard tools.
Best for: Value-focused homeowners who want a large battery ecosystem without premium pricing.
Best for DeWalt Owners: DeWalt 20V MAX XR String Trimmer
DeWalt remains especially appealing to homeowners who already own 20V MAX batteries for drills, saws, impact drivers, and other tools. Battery compatibility can make a slightly less powerful trimmer the better financial choice.
Best for: Existing DeWalt 20V MAX users with average residential trimming needs.
What to Look For
Most higher-powered cordless trimmers use straight shafts. They generally offer better reach and are easier to use underneath shrubs, fences, and landscaping. A wider cutting swath helps cover more ground but can use more line and battery; for most residential properties, roughly 13 to 16 inches is a useful range.
If you already own an EGO mower, Ryobi 40V blower, or several DeWalt batteries, that should heavily influence your trimmer decision. Buying five tools from five battery systems defeats much of the convenience of cordless equipment.
Our Bottom Line
For someone beginning a cordless lawn system, EGO’s 56V platform is our strongest overall recommendation. Ryobi 40V is an excellent value-focused alternative. If you already own compatible DeWalt batteries, staying within that ecosystem can easily be the smarter purchase.
For related yard guidance, see our best cordless leaf blowers.

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