Review: Black & Decker Cordless Trimmer / Edger

June 1, 2010 | by Ethan (email) |

Edged Grass

I love working on my lawn. Whether it’s aerating the lawn or applying weed and feed, I take a sense of pride in how my lawn looks. Up until a week ago, Jocie and I paid a neighbor-kid to edge and trim our lawn. It was easy money because we don’t have a very big yard. Unfortunately of him, I’ve got a brand new trimmer / edger now.

Black & Decker recently shipped us the brand new 24 volt High Performance Cordless Trimmer / Edger to test and review. Yesterday was a sweltering day but I braved the heat because I was really excited to try it out. The trimmer has worked out well so far but read on for a detailed review.

Black & Decker Cordless String Trimmer / Edger Review (NST1024)

Black & Decker NST1024

  • The Good: Easy trimming and edging; lightweight; quiet. Auto-feed works great. Trimmer head rotates for easy, comfortable edging.
  • The Bad: 24 volt battery is insufficient for extended use, heavy-duty trimming.
  • Overall: This trimmer works well for medium and small yards, making it a breeze to shape-up your lawn.

General Information
This B&D trimmer weights a modest 8.5 lbs and is well balanced for comfortable operation. The lightweight, aluminum shaft is extendable and the auxiliary handle can be placed for individual height. The standard 24v battery is attached at the top of the handle near the trigger and snaps securely in place. To operate, push the safety button and pull the instant start trigger.

PowerCommand Boost
The PowerCommand switch is located on the top handle, opposite the trigger. This switch allows you to toggle between “Normal” and “Boost” mode. It’s a nice addition as this allows you to optimize performance. Set the power at “Normal” for typical trimming- conserving battery. Increase the power with “Boost” to cut through thicker grasses.

Most string trimmers, you can flip around to use as an edger- it’s awkward and cumbersome. This trimmer includes a great feature enabling it to easily convert from a trimmer to a maintenance edger. By pressing the release button, the trimmer head can rotate 180° to the proper alignment. Next, flip the wire guide in place and you’re all set. Edging is easy and comfortable.

Before EdgingAfter Edging

B&D included one 24 volt, rechargeable, NiCad battery and charger. The initial charge takes 11 hours with subsequent charges only requiring 9 – 11 hours. The charger slides into place and has a green LED that blinks until fully charged at which time the LED turns off.

B&D boast that the 24V battery, combined with PowerCommand, enables you to cut up to 2.5X more grass per charge than an 18V battery. While this may be true, one 24V battery won’t be enough for a large yard or constant use. I have a small lawn but was able to completely trim, edge and begin on my neighbors lawn before the battery began to lag.

This trimmer also accepts all other Black & Decker brand 18 volt batteries. If you own other B&D cordless tools, it’s handy to keep a spare in the charger.

StringTrimmerAutomatic Feed System
This trimmer utilizes 1.65mm diameter nylon line. As you work, the feed mechanism senses when more cutting line is needed and automatically advances the line. There’s no need to bump the trimmer or manually adjust the line. There’s even a cutting edge (foreground of picture) that will trim the line to the appropriate length. I really enjoyed this feature. It worked well and eliminated the hassle and guesswork of many other string trimmers.

Technical Specifications

  • 9000 rpm Motor and gear drive
  • Voltage – 24 V
  • Cutting Path – 13 “
  • Line Diameter – 0.065 “
  • Weight – 8.5 lbs
  • Feed System – Automatic Feed System


  • 24V Cordless Trimmer / Edger- model #NST1024
  • 24V Battery Charger
  • (1) 24V Battery- model #HPNB24
  • Nylon line- model #AF100
  • Auxillary Handle
  • Guard

bushesOverall Impressions
Overall, I’m really pleased with this trimmer / edger. I really like how easy it is to get started- pop in the battery and pull a trigger. There’s no need to worry about a gas-oil mix, yanking a starter or finding an extension cord. This trimmer enables you to get the job started (and finished) faster. Black & Decker included some nice features (like the rotating head) that allow you to work faster too.

If you’re in the market for a more heavy-duty string trimmer, consider the Echo SRM-225i. The Echo features a two-cycle engine and an easy-pull start system. It’s a great choice for professionals and enthusiastic homeowners. Read the full Echo SRM-225i review on ProTool Reviews.

Buying the 24 volt High Performance Cordless Trimmer / Edger

If you’re in the market for a good, cordless string trimmer, the NST1024 is a great choice. It’s perfect for homeowners and lawn enthusiasts with medium to small sized lawns. It’s available through the Black and Decker site or, for a better price, check out Amazon plus there’s free S+H. The links are below:

What do you think? Do you own this trimmer? What’s your experience?

5 Responses
  1. Ethan,

    A real nice review and very timely for me.

    My trimmer broke and my wife is currently looking for a “fathers day” replacement gift for me.


  2. Matt Jabs says:

    Love the look of the edging feature. I just flip over my string trimmer and use it as an edger, and like you said, it’s definitely awkward! Thanks for the review.

  3. Ethan says:

    @Rob, Todd posted a cordless trimmer review yesterday. It’s worth checking out all the options.

    @Matt, It really is a nice feature. Makes edging that much easier. Overall, I really do like this trimmer.

  4. RHONDA HUDSON says:

    Love the trimmer–but the battery does not last long enough for me to finish even my small yard! I sent an email to the contact on the website for my Black and Decker 24 volt Trimmer, asking if they had any suggestions concerning the short time the battery lasts on even my tiny lot, but have not received a reply. If the battery will not cut the mile or whatever they are claiming on the website–then change the advertising to reflect actual battery life–closer to one fourth of a mile, if even that long!

  5. HANDYMAN51 says:

    I have a corded B & D trimmer which requires the ” bump” on the ground to advance line. I can see the autofeed on this type working better, and the swivel head was a great innovation.

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