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

In this review of the BLACK+DECKER 40V MAX String Trimmer/Edger the bottom line is simple: it is a capable, lightweight tool best suited to small and medium yards where ease of use matters more than extended runtime. The reviewer found the high-performance 40V max Lithium ion battery and the Power Drive high-torque transmission deliver clean, fast cuts at the string, making edging and trimming straightforward. The included replacement spool system and the state of charge indicator are welcome conveniences that reduce downtime and make the tool easy for homeowners to maintain.

Key Features

• 40V max Lithium ion battery: Provides ample power for normal yard work and includes a state of charge indicator so users can see remaining power before starting a job.
• Power Drive high-torque transmission: Delivers cutting power directly to the string for consistent, clean cuts through grass and light weeds.
• Replacement spool system: Eliminates hand winding so line changes are faster and less fiddly, saving time during maintenance.
• Compatibility list: Works with many BLACK+DECKER trimmer models, which makes finding replacement parts and spools straightforward for existing owners.
• Included trimmer line: Comes with 30 ft of 0.065 in line in a 3-pack, giving spare line ready for several refill sessions.

Who It's For

The trimmer is ideal for homeowners with small to medium lawns who value a lightweight, easy-to-handle tool for regular trimming and edging. Those who rarely tackle heavy brush or vast properties will appreciate the balance of power and portability provided by the 40V system and high-torque transmission.

People who need very long runtime for large properties or who frequently cut through thick, woody growth should look elsewhere or consider backup batteries, since customer feedback is mixed about battery life and heavy-duty durability in rough conditions.

Pros & Cons

Pros

• Lightweight and easy to maneuver for extended trimming sessions around the yard.
• Good cutting performance for standard lawn grass thanks to the Power Drive high-torque transmission.
• Convenient replacement spool system and included 30 ft of 0.065 in line in a 3-pack reduce maintenance hassle.
• State of charge indicator removes guesswork about remaining battery power.

Cons

• Battery life gets mixed reviews, so runtime may be insufficient for larger yards without extra batteries.
• Some customers raised concerns about long-term durability under heavy use.

Specifications

Brand	BLACK+DECKER
Battery	40V max Lithium ion with state of charge indicator
Transmission	Power Drive high-torque
Included line	30 ft, 0.065 in, 3-pack
Compatibility	Compatible with multiple BLACK+DECKER trimmer models (see product list)
Function	String trimmer and edger

Our Verdict

The BLACK+DECKER 40V MAX String Trimmer/Edger is a smart choice for homeowners seeking a lightweight, easy-to-maintain cordless trimmer that delivers reliable cutting performance for typical lawns. It offers good value when used within its strengths, though buyers who need long runtimes or heavy-duty durability should plan for extra batteries or a different model.

Frequently Asked Questions

How long does the battery last?
The battery life varies with use; customers report mixed results, with adequate runtime for small yards but limited duration on longer jobs.

Is the trimmer easy to change the line?
Yes, the BLACK+DECKER replacement spool system eliminates hand winding and makes line changes quick and simple.

Which models is this compatible with?
It is compatible with a long list of BLACK+DECKER models, including LST120, LST136, LST140 and many others listed in the product details.