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

Weed Eater Reviews

Black & Decker ST7700 13-Inch 4.4 amp Automatic Feed String Trimmer and Edger Review
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​Black & Decker ST7700 13-Inch 4.4 amp Automatic Feed String Trimmer and Edger: QUICK OVERVIEW




​Power Supply

What We Like

  • ​Lightweight
  • ​Perfect for trimming hard-to-reach areas
  • ​Features a cord retention system

What We Don't Like

  • ​Not built for heavy use
  • Trimmer may smoke after hours of use
  • ​Not a heavy-duty trimmer

​Weed eaters are a must have for families with yards and extensive lawns to keep them manicured and pleasant to the eye. Although it takes a lot of work, owners should be responsible in ensuring that their yards are well maintained for both safety and aesthetics.


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

​What’s the best way of having a clean-looking lawn than using the Black & Decker ST7700, $36.21? In this Black & Decker weed eater review, we will discuss its pros and cons and why it may just be exactly what you are looking for.

​What are the important aspects of the Black & Decker ST7700 Automatic Feed String Trimmer and Edger?


The Black & Decker ST7700 is an electric string trimmer, which uses a safety cord for power. It features a retention system to guard against unintended unplugging of the tool while you’re using it. Black & Decker is also famous for its cordless trimmers that run through lithium-ion batteries.

Electric trimmers are the way to go if you don’t like the hassle, the smoke, and the heaviness of a gas-fueled trimmer. However, if you detest having limited movement because of the cord, you can opt for a cordless trimmer.


This trimmer is smaller than the “regular” ones out there because its main purpose is for maintenance. Therefore, it is also lighter and more likely to trim hard-to-reach areas.

It weighs about 4.5 pounds, making it a breeze to wield and use. It is easy to handle because even though it is considered light, the materials are quite very solid.


The small head where the string trimmer is located is designed for post-mowing maintenance edging and trimming grass in hard-to-reach areas. It has a 13-inch diameter reach so you can quickly finish your job and get on with doing more important things like relaxing with your family. It also has a 180-degree rotating head, used for converting trimming work to edging work.

The Black & Decker ST7700 is equipped with a 4.4 Amp motor that spins the line at a speed of 10,000 RPM; enough to tackle enduring overgrown grass and weeds. Make sure to cut long grass one section at a time to avoid it tangling with the head of the blade else it can get stuck.

Another feature is the Automatic Feed Spool (AFS) design that reduces bumping as the cutting string advances.

Ease of Use:

Because of its lightweight body, you’ll be able to use it without worrying about muscle strains. It is also easy to control so you’re sure that all grass that needs to be taken care of are gone.

The built-in auxiliary handle provides maximum comfort and control and the mere five pounds weight makes it your best buddy for your weekly grass length maintenance. Black & Decker promises that this feather-light string trimmer allows for less fatigue and more control.


Unlike other trimmers that come with external attachments for more function, this one doesn’t come with any of it. However, you’re able to use it as both a trimmer and edger in one.

Help and Support:

This product comes with a two-year manufacturer’s warranty to give you peace of mind. Parts and repairs will also be covered, depending on the store where you have bought it so make sure to ask.

Black & Decker has good customer support via email and telephone and their website is also helpful for answering basic questions. Before purchasing any product of this type, check if there are service centers near you, so in case your run into problems, you won’t have difficulty reaching them.

​What other things should you know about the Black & Decker ST7700 Automatic Feed String Trimmer and Edger?

Assembling the machine takes only a few minutes of your time as well as starting it up. With just one pull, you’re ready to use your trimmer. Keep in mind that this trimmer is not made for heavy-duty work; it is for post-mowing maintenance and cutting weeds here and there.

People have complained about the spool and the line being eaten up quickly, as well as overheating and smoking. For your safety, do not use it for long periods of time.

Another aspect to consider that this is only for small yards is the fact that this is corded and connected into a power supply. It’s not meant to be taken out farther than your lawn and steps.

Notwithstanding the cons, this trimmer works the way it should and the large diameter of reach can get the job done quickly. For the good reputation of Black & Decker, this machine is also very affordable.

​The Verdict

​The Black & Decker ST7700 is recommended for smaller lawns, yards, and gardens. It is meant to be used for post-mowing maintenance and to clear grass off pathways. Using it other than that and for prolonged periods may cause you trouble as what owners have experienced.

For the price, it’s a good choice if it will be used for its intended purpose. Otherwise, buy a bigger and more powerful one or you might regret buying this.

Also check our article on the "​What are the best Weed Eaters?", for more ​weed eater choices.

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