BLACK+DECKER 40V MAX String Trimmer/Edger with Autofeed - Lightweight

Our review of the BLACK+DECKER 40V MAX String Trimmer/Edger finds it best suited to homeowners with small to medium yards who want a lightweight, easy-to-use cordless trimmer. The single biggest reason to buy is the combo of a high-performance 40V max lithium battery with a visible state of charge indicator and the Auto Feed replacement spool system that saves time compared with hand-winding. This tool delivers solid cutting power at the string thanks to a power drive high-torque transmission, while the included AF-100-2 30 ft autofeed spools let users get back to trimming quickly.

Key Features

• 40V max lithium battery: Provides strong cutting power and a state of charge indicator so users can see remaining run time before starting a job.
• Power drive high-torque transmission: Delivers dependable torque at the string for clean, fast cuts through regular lawn growth.
• Autofeed replacement spool: The AF-100-2 30 ft spools eliminate hand-winding and make reloading faster and less frustrating.
• Lightweight design: The trimmer is easy to handle for edging and trimming around yards, reducing fatigue during short sessions.
• Wide compatibility: Replacement spools and parts work with many BLACK+DECKER models, simplifying maintenance for owners of multiple tools.

Who It's For

This trimmer is a practical choice for homeowners with small to medium lawns who need a manageable cordless trimmer for routine trimming and edging tasks. It appeals to users who value ease of use and quick spool replacement over professional-grade runtime.

It is less ideal for large properties or heavy, continuous use where long battery life and industrial durability are essential; several customers report varied battery runtime and a few note motor durability concerns, so contractors or heavy users should consider a commercial-grade option instead.

Pros & Cons

Pros

• Good cutting power for typical yard work thanks to the 40V battery and high-torque transmission.
• Autofeed 30 ft replacement spools save time and make string replacement straightforward.
• Lightweight and easy to assemble, making it comfortable for short sessions and tight areas.
• State of charge indicator helps plan jobs and avoid unexpected shutdowns.

Cons

• Battery life is mixed according to customers and can be short for longer jobs.
• Some users report durability issues under heavier use, suggesting it is best for residential rather than commercial workloads.

Specifications

Our Verdict

The BLACK+DECKER 40V MAX String Trimmer/Edger is a smart buy for homeowners who need a lightweight, easy-to-use cordless trimmer with convenient autofeed spools and a clear battery indicator. It delivers good performance and value for casual yard care, though users with large properties or heavy-duty needs should evaluate battery runtime and durability before committing.

Frequently Asked Questions

How long are replacement spools?
The included AF-100-2 autofeed spools provide 30 ft of 0.065 in line each, and arrive as a 2-pack for quick swaps.

Will the spools fit other BLACK+DECKER models?
Yes, the autofeed spools are compatible with many BLACK+DECKER models listed in the product details, making them easy to source for owners of multiple tools.

Is the battery suitable for large yards?
The 40V max battery gives solid cutting power for typical residential lawns, but customer reports of mixed runtime mean larger yards may require spare batteries or a different tool for extended work.