Greenworks 40V 16 in Cordless String Trimmer — 4.0 Ah Battery, Brushless Lightweight

This cordless trimmer is part of Greenworks' 40V lithium-ion platform that powers 60+ outdoor tools, letting you share batteries across mowers, blowers, chainsaws, and more. The included 4.0 Ah battery delivers fade-free power and instant starts without gas, oil, or emissions. Engineered for balance and comfort, this compact unit is quieter and up to 25% lighter than comparable gas models, making yard work less fatiguing while still delivering professional-level trimming performance.

How does the trimmer perform on typical yard jobs?

The brushless motor gives stronger torque and longer run time compared with brushed motors, handling grass, light weeds, and edging tasks with consistent speed. Two speed modes plus a variable-speed trigger let you match power to the task — lower speeds for precision edging and higher speeds for tougher growth.

• 16-inch cutting swath for efficient passes along fences and beds
• Two-speed selection and variable trigger for control and battery conservation
• Brushless motor for extended runtime and longer motor life

Can I use attachments to expand its capabilities?

Yes. The shaft accepts several Greenworks attachments so you can convert the trimmer into an edger, hedge trimmer, polesaw, cultivator, or blower without buying a separate powerhead. That modular approach saves storage space and extends the tool’s usefulness across seasonal tasks.

• Compatible with PAC458 (Edger), PAC459 (Hedge), PAC460 (Polesaw)
• PAC461 (Cultivator) and PAC462 (Blower) supported for multi-task versatility
• Quick-change attachment mounting for straightforward swaps

What makes the battery and charging system convenient?

The 4.0 Ah 40V battery provides fade-free output so power stays steady until depleted, and Greenworks batteries are interchangeable across the 40V line. Select battery models even include USB ports, turning them into portable chargers for small electronics when you’re working outdoors.

• 4.0 Ah capacity balances runtime and weight for everyday yard care
• Fade-free lithium-ion chemistry with no memory loss after charging
• 40V platform compatibility across dozens of Greenworks tools

How does this trimmer compare to gas models for maintenance and noise?

Electric operation eliminates gas, oil changes, spark plugs, and carburetor maintenance while cutting noise substantially relative to gas units. It starts instantly with the push of a trigger and requires minimal upkeep, which lowers lifetime ownership hassle and cost.

• No gas or oil, reducing routine maintenance tasks
• Quieter operation for neighborhood-friendly trimming
• Instant starts with no pull cords or idle tuning

Who is this for? The Greenworks 40V 16" Cordless String Trimmer with a 4.0 Ah battery is ideal for homeowners with small-to-medium yards who want a lightweight, low-maintenance electric tool that can be expanded with attachments. It suits users who value quiet operation, battery interchangeability across a broad tool ecosystem, and the balance of power and runtime for routine trimming, edging, and light weed control.

Included with your purchase, Greenworks backs the product with a three-year warranty on both tool and battery, giving added confidence for everyday outdoor work.