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​BLACK+DECKER LSTE523 Lithium Trimmer/Edger Review

My Rating:​​​​​

There are many cordless trimmers on the market today that make yard work easier and faster. The BLACK+DECKER LSTE523 POWERCOMMAND String Trimmer/Edger is one of these trimmers.

Based on written and video reviews, I’d say this little trimmer is a great worker. Though it has a short runtime, it still works well in smaller yards.

There are many positive features of this particular trimmer/edger that reviewers seem very pleased with: weight, power, adjustable design, easy start, automatic string feed, and edging function.

Though I’ve never personally used this Black+Decker trimmer/edger, if I were looking for a functional and lightweight trimmer, I’d seriously consider this one.


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    Lightweight – at only 6.3 pounds, this trimmer is easy to use for anyone!
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    Powerful – even on the low setting this trimmer works great
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    Auto Feed System – it automatically feeds, but can also be fed with just the press of a button


  • Short runtime – Some reviews say the battery only last 20 minutes
  • Trimmer Line – the 0.065 inch line is weak and breaks easily


  • Easily convertible from a trimmer to a wheeled edger in just seconds. With an adjustable handle, this transition is comfortable and ergonomic.
  • The PowerDrive transmission increases the torque of the trimmer head allowing for faster and more effective cutting.
  • There are 2-speed control options that allow the user to select a power level according to the task at hand. This feature can extend run time by only using the power necessary.
  • The maximum initial battery voltage based on running without doing work is measured at 20 Volts or a nominal voltage of 18 Volts.
  • The easy feed feature of this trimmer allows the user to advance the line with a simple push of a bottom. There is no bumping or manual feeding necessary with this machine.
  • Has adjustable height and handle designed to make the user experience as comfortable as possible.
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    Has a 12-inch cutting swath to cut down a decent sized area in just moments
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    The RPM range for this trimmer is between 5500 (low power mode) and 7200 (high power mode)
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    Only weights about 7 pounds with the battery installed and can be easily used by anybody


This Black+Decker 20 Volt Maximum Lithium Ion string trimmer/edger is designed to trim areas of overgrowth effectively and easily.

Edging Feature

It is also effective at edging along the borders of bricks, sidewalks, buildings, and other yard fixtures. This function is easily accessed by rotating the trimmer head and adjusting the grip handle.

The edging feature gives very clean results and great added bonus feature.


With the PowerDrive Transmission powering this trimmer, the increased torque allows for faster and cleaner cutting. Although this is only a 20 Volt Lithium ion battery, it has enough juice to handle a small yard in one charge.

The battery capacity limitation is something to keep in mind when using this machine; it is not designed to tackle larger projects.

Don’t expect it to last through a 5-10 acre yard. Instead only ask of it what it can successfully handle; a 1-3 acre yard is probably the extent of this trimmer’s ability in one go.


The adjustable features on this trimmer make it customizable for the current user: adjustable grip handles in both edger and trimmer mode, automatic button string feeder, and adjustable length.

Easy Start

A favorite feature that many reviewers mentioned is the easy start feature. Because this trimmer is not gas-powered or a pull-start it is easily trigger started.

Not having to work up a sweat trying to pull-start a trimmer is every yard workers dream. With this trimmer, you don’t have to worry about dealing with a pull-start. Instead, this trimmer is started with a simple trigger. No sweat necessary!

Runtime & Line

The two biggest complaints about this machine are its runtime and weak trimmer line.

There are solutions to these two problems. The user can purchase additional batteries to continue working with a freshly charged battery when one battery dies.

A solution for the weak trimmer line is to get better quality line. This trimmer will not accept a thicker line, but there are usually better line options on the market than the stock version.


Everyone loves the lightweight design of the trimmer. Again, this trimmer weights less than 7 pounds which makes it an excellent yard work companion. The adjustable features that make the user experience more customizable and comfortable are things most people can’t pass up.

Based on the reviews, this is a trimmer that would work well for ladies or elderly. Because it is so lightweight, there are almost no strength limitations on who can use this trimmer.


Last but not least, the power.

This trimmer has impressive power and torque. Obviously, it’s not going to have the power of a gas-powered motor or one powered by a larger battery, but it's not designed to compete with those products.

If you don’t ask more of this trimmer than it can give, it will give you exactly what you’re looking for; enough power to cut down manageable overgrowth.

BLACK+DECKER LSTE523 20V Max Lithium POWERCOMMAND Easy Feed String Trimmer/Edger
655 Reviews
BLACK+DECKER LSTE523 20V Max Lithium POWERCOMMAND Easy Feed String Trimmer/Edger
  • Converts from trimmer to wheeled edger
  • Power Drive Transmission for increased torque
  • 2-speed control for more power or extended runtime. Maximum initial battery voltage (measured...
  • EASYFEED allows you to advance your line with the push of a button with no bumping required


The BLACK+DECKER LSTE523 20V Max Lithium POWERCOMMAND Easy Feed String Trimmer/Edger seems like a great product.

When the majority of experienced product reviews and videos speak highly of a machine, you can pretty much accept it as truth. As for this trimmer/edger, I’d certainly say that it is worth the investment.

The many features that make the user experience better and more customizable are things every yard worker loves. As someone who has worked outside for most of my life, I’d be more than willing to give this Black+Decker trimmer/edger a chance.

About the author

    Matt Hagens

    Hi, I'm Matt the owner of Yard Care Gurus. I love to be outside working on my lawn, planning my next project. I created this website to help people like you find the best products for yard care and great advice. Thanks for stopping by!

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