Cordless string trimmers have become a go-to tool for suburban yards, offering portability, minimal maintenance, and quiet operation. The right model delivers enough cutting width, battery life, and versatility to handle grass, weeds, and edge work without gas or cords. This guide highlights five top battery-powered options, balancing performance with value. Each entry links to its Amazon listing for quick reference, and a concise summary table at the start helps you compare key specs at a glance.
| Product | Brand | Battery | Cutting Width | Notes |
|---|---|---|---|---|
| EGO ST1502SA | EGO Power+ | 56V, 2.5Ah | 15″ | Rapid Reload, weather resistant |
| WORX WG163 | WORX | 20V, 2 Batteries | 12″ | 2-in-1 trimmer/edger |
| EGO ST1623T | EGO Power+ | 56V, 4.0Ah | 16″ | LINE IQ and Powerload |
| EGO ST1523S | EGO Power+ | 56V, 4.0Ah | 15″ | LINE IQ, Powerload |
| LPSUK 20V Trimmer | LPSUK | 20V, 2.0Ah (x2) | 12″ | Telescoping shaft, fast charger |
EGO ST1502SA 15-Inch Battery Trimmer
This 15-inch EGO trimmer is designed for weeds and grass with a professional-grade 0.095 inch line and a 15″ cutting swath. It uses a high-efficiency brushless motor for longer run time and reduced vibration, improving comfort during extended use. The unit is IPX4 weather resistant, making it suitable for outdoor conditions. A Rapid-Reload head lets you load new line quickly by aligning arrows, inserting the line, and twisting.
- 15″ cutting swath with 0.095″ dual-feed line
- 56V battery system included (2.5Ah) with charger
- Brushless motor for efficiency and longevity
- IPX4 weather resistance
- Rapid-Reload head for fast line changes
Ideal for mid-sized yards where quick, tidy edge work and weed cutting are needed without battery swapping interruptions.
WORX WG163 12-Inch 20V Trimmer
The Worx WG163 converts from a string trimmer to an edger in seconds, offering a 12″ cutting width ideal for tight spaces and edging along sidewalks. It features an instant line feed with a push-button spool system and the convenience of two batteries. The head tilts up to 90° for comfortable trimming on slopes and hard-to-reach areas. Included spools and charger boost overall value for homeowners who want a versatile, lightweight tool.
- 2-in-1 trimmer and edger
- Push-button line feed
- 90° tilting head for versatile use
- Two 20V batteries and charger included
- Lightweight design for easy handling
Best for small to medium lawns where maneuverability and edge detail are priorities, with the flexibility to switch tasks quickly.
EGO ST1623T 16-Inch Trimmer
The ST1623T upgrades to a longer 16-inch swath and features patent-pending LINE IQ technology, which auto-senses and feeds line for continuous trimming. POWERLOAD makes winding new line quick and effortless, reducing downtime. The telescopic carbon fiber shaft lets you tailor the length for comfort, backed by a 56V battery and a 4.0Ah pack for extended run time.
- 16″ cutting width with LINE IQ auto-feed
- POWERLOAD for rapid line loading
- Telescopic carbon fiber shaft (adjustable)
- 56V battery, 4.0Ah included
- Low vibration, durable design
Well-suited to larger yards or tasks requiring longer pole reach and consistent line delivery without bumping the head.
EGO ST1523S 15-Inch Trimmer
The ST1523S keeps strong performance with a 15-inch cutting width and the same reliable 0.095 inch line. It incorporates LINE IQ auto-feed and POWERLOAD to simplify line management, with a 56V system and a 4.0Ah battery included. Weather resistance and smooth operation support extended outdoor use in variable conditions.
- 15″ cutting swath with 0.095″ line
- LINE IQ auto-feed and POWERLOAD
- 56V battery with 4.0Ah included
- Weather resistant and durable build
- Balanced weight for comfortable handling
Great for homeowners seeking a mid-size trimmer with advanced features and a strong battery package.
LPSUK 20V 12-Inch Cordless Trimmer
This 12-inch LPSUK trimmer is a budget-friendly option with a telescopic shaft that ranges from 38 to 49 inches, reducing bending and improving comfort. It uses two 2.0Ah batteries with a fast charger, delivering over 60 minutes of runtime in many tasks. The head tilts and the handle adjusts to meet user preference, and an included wheel can convert the tool into an edger for clean, defined lines.
- 12″ cutting width; two 2.0Ah batteries
- Telescopic shaft, 38″ to 49″
- 60° adjustable head; 180° handle
- Quick charger and eight spare lines included
- Solid option for budget-conscious buyers
Suitable for budget-minded lawns where basic trimming and edging are needed, with adjustable length and angle for comfort.
Buying Guide
Key Purchase Considerations
- Voltage and power: Higher voltage (56V) generally offers more cutting power and longer run time, but adds weight. 20V models are lighter and often sufficient for smaller yards.
- Battery capacity: Higher amp-hour (Ah) ratings extend runtime. If you have thick weeds or large areas, aim for 4.0Ah or larger in a single battery or multiple batteries for swap-out capability.
- Cutting width: Wider swaths reduce pass counts but require more motor power. 12″ to 16″ are common for residential use; 16″ suits larger lawns with fewer trips.
- Feed system: Auto-feed (LINE IQ, Powerload) minimizes bumping, while traditional bump-feed requires line reloading manually. Auto-feed tends to boost efficiency.
- Weight and ergonomics: Telescoping shafts and carbon fiber components improve comfort, especially for extended use. Consider grip position and balance when selecting.
- Versatility: 2-in-1 tools (trimmer/edger) add value by covering edging tasks without separate tools. Tilt heads help reach slopes and uneven edges.
- Durability and weather resistance: Look for IP ratings and rugged housings if you expect exposure to sun and rain.
- Accessories and warranty: Some models include spools, wheels, or extra batteries. Check warranty length for long-term protection.
Model Comparisons
- Best for power and professional feel: 56V Ego platforms with 4.0Ah packs (ST1623T and ST1523S) deliver strong cutting performance and feature-rich operation like LINE IQ and POWERLOAD.
- Best for value and versatility: WORX WG163 offers a 12″ width with a 20V system and two batteries, ideal for compact spaces and edging along driveways.
- Balanced all-around option: ST1502SA combines a solid 15″ swath with speed-reload features and included battery in a weather-resistant body.
- Budget-friendly entry: LPSUK models provide essential trimming at a lower price point with adjustable shaft and dual-battery setup for longer runtimes.
When choosing, match the tool to your yard size, terrain, and coveted features (auto line feed, battery life, or 2-in-1 functionality). Consider how often you trim, the types of edging you do, and whether you prioritize lightweight handling or maximum cutting width. A model with a robust battery pack and convenient line-loading system will reduce downtime and keep yard work efficient year-round.