Below, we’ll be discussing the features of the BLACK+DECKER 40V MAX String Trimmer / Edger to know if it performs up to par.



The design of a product is the first thing you notice when you set your eyes on it. For the LST136, it has an average design which is likely to satisfy any user.The shaft is about 52 inches in length and the cutting string is 13 inch in length.

One good thing about the length of the shaft is that it is not fixed; it can be adjusted to any comfortable height by the user.

Trimmer / Edger

Judging from customer experiences, the Black and Decker LST 136W performs well as a trimmer and as an edger. Converting from trimmer to edger is practically easy as the head can be rotated, just to turn the shaft is all you need to do.

It is also possible to adjust the cutting speed and it can be set at low, medium or high mode. Each of the modes cuts well but the high mode will do the job quicker though it consumes much power. The cord is a bit thin which will work well for grass but not so well for thicker bushes.

An Automatic Feed Spool serves as an advantage as you cut as it prevents bumping. A large guard is featured and when working, the guard serves as protection so that you do not get covered in grass.


weed wacker From the description, you would know that the LST 136W is a battery powered device. The 40V battery that comes with this trimmer charge fast as it takes just about an hour to fully recharge. When on a high level, it lasts between 10 – 15 minutes for use but stays on for close to 60 minutes when on a medium or low level. You can switch between maximum power (high level) and maximum runtime (low/medium) with a PowerCommand dial by just pressing the button.


The LST 136W is a lightweight product which is one of the reasons why a lot of people find it very easy to use. It weighs just 7.8 pounds even with the battery on so carrying will be convenient.

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  • Lightweight
  • Adjustable Height
  • Trimmer and Edger
  • High Power


  • Thin cord
  • Low run time on high mode


The Black+Decker 40V MAX String Trimmer / Edger is a general purpose weed whacker and among the best sellers. It uses a 40V lithium battery which lasts for long and is lightweight so it can be used comfortably.

However, the 13-inch cutting path would not do the job properly when heavy and thick bushes are involved. It is a weed whacker that should just weeds and grasses. Buying it is recommended and you can check it out on Amazon.