Black & Decker ST7700 13-Inch 4.4 Amp Automatic Feed String Trimmer and Edger

by Dan | Last Updated: March 27, 2024

The Black & Decker ST7700 13-Inch 4.4 Amp Automatic Feed String Trimmer and Edger is a very powerful and lightweight tool which is best for trimming grasses, heavy weeds, and overgrowth. It features a head that can rotate 180 degrees, thus converting the trimmer into an edger and back to a trimmer in just a matter of a few seconds.


  • Cuts a 13-inch path
  • 4 amp motor
  • 10,000 RPM
  • 5 pounds weight
  • 2 year warranty
  • Post mowing maintenance edging
  • Trimming grass in difficult to reach areas
  • Cord retention system

When used as an edger, the product can help when it comes to edging along driveways and sidewalks. Also, its 13-inch automatic feed string trimmer and edger also offer a 13-inch cutting path, featuring the all-exclusive automatic feed spool system which advances the cutting string without worrying of bumping, with its centrifugal force feeding the line as necessary.

It also comes with a built-in auxiliary handle which offers maximum control and comfort, with its cord retention system preventing accidental disconnection of the cord, thus allowing for continuous trimming.

The unit also comes with a powerful 4.4-amp motor which spins the line at 10,000 RPM, acting as a very powerful tool which is perfect when it comes to trimming heavy grass and weeds. With a weight of just 5 pounds, this very light string trimmer allows for more control and less fatigue.

This product is also backed up with a 2-year full warranty. This unit is recommended for both post-mowing maintenance edging on hard surfaces such as pavements, as well as in trimming grass in areas that are considered hard to reach.

This unit also comes with an easy-to-handle automatic feed string trimmer which can cut a 13-inch path, with a 180-degree rotating head which makes it simple to convert to edging work.

At the same time, the 4.4-amp motor can spin the line at a fast speed of about 10,000 RPM, providing this unit with enough power to tackle overgrown weeds and grass. Another important feature of this unit is the Automatic Feed Spool design, which means that you no longer have to deal with bumping since the cutting string can automatically advance.

On top of that, there is also a built-in auxiliary handle which can help when it comes to minimizing wrist fatigue, perfect for long-term use.

Also, as an additional feature, there is also a highly convenient cord retention system which can guard against unintentional unplugging the unit while you are still working.

Since the Black & Decker ST7700 13-Inch 4.4 Amp Automatic Feed String Trimmer and Edger uses electricity, it means that there is no need to deal with gas and fumes when using this equipment.

As such, you can be assured of a chemical free clean, which is perfect for homes with pets and kids. It is also filled with innovative features such as the steam mops that can kill about 99.9% of germs with only water as it is used together with a micro-fiber pad.

It is also highly recommended and safe for use even on sealed hardwood floors, as well as the Smart Select Technology which automatically releases enough steam for your specific floor type. It can also heat up in as little as 15 seconds which can tackle even the toughest mess. This means that you can easily say goodbye to dirt and mopping forever.


  • Ideal for light to moderate yard work
  • Great for maintenance work after trimming
  • Lightweight and easy to carry
  • Switches from an edger to a trimmer easily
  • Comes with a built-in auxiliary handle for wrist comfort
  • Its cord retention system is a feature that can prevent accidental unplugging


  • Corded
  • Battery life not long enough


If you are interested in having a low cost yet high-quality string trimmer, the Black & Decker Automatic Feed String Trimmer and Edger is certainly well worth it. There are several amazing features that you can take advantage of by using this trimmer. For one, the trimmer comes with a 4.4-amp electric motor that can spin more than 10,000 revolutions per minute.

As such, you will not have any problems when it comes to chopping down even large swaths. Also, since it is equipped with an auxiliary handle, you will not feel extremely tired in your hands after prolonged use. since the trimmer has a great amount of cutting power.

Another thing that you will appreciate is the fact that it comes with a very flexible cord, with enough room that can take care of the needed challenges. There is also a built-in cord retention system which means that you do not have to worry about any unplanned disconnections while you are still cutting the grass.

Black & Decker ST7700 Feed String Trimmer and Edger is also equipped with a 2-year warranty. Such a warranty offers additional peace of mind just in case something unlikely and unexpected happens to the trimmer.

Also, the trimmer weighs just less than 5 pounds and is equipped with a very powerful 4.4-amp motor which can deal with great cutting power. At the same time, as a chemical-free cleaner, you will be very confident of safe use and cleaning.

The cord is already flexible so despite being corded, you do not have to worry about accidental disturbance while cutting your grass or doing the edging, perfect for use at home.

No doubt, Black & Decker is one of the most popular companies in terms of lawn care products. If you are really serious about making sure that your lawn is nice and neat, this tool is just perfect for you!

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