If you’re looking for a capable cordless string trimmer that won’t break the bank, you’ve likely come across a popular model. This Black and Decker NSW18 review aims to give you the clear, practical details you need. We’ll look at its power, battery life, and how it handles real yard work, from trimming grass to edging sidewalks.
I’ve used this tool for an entire season, and I’m here to tell you exactly where it shines and where it might fall short for your specific needs. Let’s get straight into what you can expect from this 18-volt trimmer.
Black and Decker NSW18 Review
The Black and Decker NSW18 is a lightweight, battery-powered string trimmer and edger combo. It’s part of their 18V system, meaning it shares batteries with many other Black and Decker tools. For light to medium-duty yard maintenance, it’s a strong contender, especially if you already own compatible batteries.
Key Features and Specifications
Before we get into the nitty-gritty, here’s a quick overview of what the NSW18 offers:
* Power Source: 18V Lithium-Ion Battery (battery and charger typically sold separately)
* Cutting Swath: 12 inches
* Weight: Approximately 7.5 lbs (without battery)
* Automatic Feed Spool (AFS): Yes – advances the cutting line with a tap
* 2-in-1 Function: Converts from trimmer to wheeled edger
* Shaft Type: Straight
Unboxing and First Impressions
Right out of the box, the NSW18 feels light and well-balanced. Assembly is straightforward; you mostly just attach the handle and guard. The build quality is decent for the price point—it’s mostly plastic, but it doesn’t feel cheap or flimsy. The included wheeled edger attachment clicks on and off easily, which is a nice touch.
One minor hiccup I noticed was that the instruction manual could be a bit clearer on how to load the string spool. It’s not hard, but it might take you a minute to figure it out the first time.
Performance in the Garden: Trimming and Edging
This is where the rubber meets the road. How does it actually perform?
As a String Trimmer:
For average grass and weeds, the NSW18 does a commendable job. The 12-inch cutting path is wide enough to make quick work of small to medium lawns. The automatic feed spool (AFS) is a huge convenience. When you need more line, you just tap the head on the ground while the tool is running—no bumping required.
It struggles somewhat with very thick, overgrown weeds or tough, woody stalks. That’s to be expected from an 18V tool. It’s perfect for weekly maintenance but not for reclaiming a neglected field.
As an Edger:
The edging function is a standout feature. The attachment clicks on securely, and the wheel makes it easy to guide along sidewalks and driveways. It creates a clean, crisp edge with minimal effort. Switching between trimming and edging takes less than 30 seconds, which encourages you to actually edge your lawn regularly—a task many of us put off.
Battery Life and Runtime
Runtime is the most common question for any cordless tool. Your experience will vary dramatically based on the battery you use.
* With a 1.5Ah Battery: Expect about 15-20 minutes of continuous runtime. This is fine for a very small yard or quick touch-ups.
* With a 2.0Ah or 4.0Ah Battery: This is where the tool becomes much more viable. A 2.0Ah battery gave me a solid 25-30 minutes of mixed trimming and edging, which was enough for my 1/4 acre lot’s perimeter and edging.
Pro Tip: If you’re buying this tool and don’t own batteries, invest in at least a 2.0Ah battery. The higher capacity makes a world of difference and prevents frustration.
Ergonomics and Ease of Use
The NSW18 scores high marks here. Its light weight means you can use it for your entire yard without significant arm fatigue. The adjustable handle lets you find a comfortable position, and the controls are simple—just a trigger and a safety lock.
The straight shaft is easier to store than a curved-shaft model, though it can feel slightly less maneuverable in tight spots around delicate plants. Overall, its a very user-friendly tool.
Maintenance and Durability
Maintenance is minimal. Keeping the air vents clear of debris is the main task. The cutting line is easy to reload once you’ve done it once. The spool uses a common 0.065-inch diameter line, which is widely available.
Durability has been good in my experience. It’s survived being knocked over and stored in a shed through temperature changes. The plastic components have held up, though I always recommend avoiding using it as a brush-clearing tool, as that can strain the motor and head.
Pros and Cons Summary
Let’s break down the advantages and limitations clearly.
Pros:
* Very lightweight and easy to handle.
* Excellent 2-in-1 functionality; the edger works great.
* Automatic line feed is reliable and convenient.
* Great value if you already own 18V Black and Decker batteries.
* Low noise compared to gas trimmers.
Cons:
* Underpowered for heavy weeds or large properties.
* Battery and charger sold separately in most kits.
* Runtime with small batteries may be insufficient.
* Not suitable for thick, woody growth.
Who Is The NSW18 Best For?
This tool isn’t for everyone, but it’s perfect for specific gardeners:
* Urban/Suburban Homeowners with small to medium-sized lawns.
* Those seeking low-maintenance who want to avoid gas and pull-cords.
* Existing Black and Decker 18V system owners looking to expand their toolkit.
* Anyone who values light weight and easy edging over raw power.
If you have an acre of land with tough weeds, you’ll likely need a more powerful cordless or gas model. But for typical yard upkeep, it’s a fantastic choice.
Step-by-Step: How to Load the Trimmer Line
Since loading the spool can be tricky, here’s a simple guide:
1. Press the tabs on the sides of the spool head and remove the cover.
2. Take out the empty spool. Note the direction of the arrow on the spool.
3. Feed about 10 feet of new 0.065″ line through the anchor hole in the spool.
4. Wind the line tightly onto the spool in the direction of the arrow. Keep tension as you wind.
5. Secure the ends in the notches on the spool’s sides.
6. Place the spool back into the head, pull the ends free from the notches, and thread them through the eyelets.
7. Snap the cover back on until it clicks.
Frequently Asked Questions (FAQ)
Q: Does the Black and Decker NSW18 come with a battery?
A: Usually, no. Most kits sell the tool only. You must purchase a compatible 18V Black and Decker lithium-ion battery and charger separately. Always check the product description carefully.
Q: How does the Black and Decker cordless trimmer compare to gas?
A: It’s much quieter, lighter, and requires virtually no maintenance. However, it lacks the peak power and runtime of a gas trimmer for the toughest jobs.
Q: Can you use the Black and Decker 18V trimmer for edging?
A: Yes, that’s one of its best features. It includes a wheeled edger attachment that clicks on easily, allowing you to create clean edges along walkways.
Q: Is the line feed system on the NSW18 reliable?
A: The Automatic Feed Spool (AFS) system is generally very reliable. Tapping the head on the ground while running advances the line smoothly, preventing tangles.
Q: What is the warranty for this Black and Decker string trimmer?
A: Black and Decker typically offers a 2-year limited warranty for their tools. It’s always wise to register your product online and keep your receipt.
Final Verdict
After putting the Black and Decker NSW18 through its paces, I can confidently say it’s a solid choice for the right user. It excels at making routine lawn care—both trimming and edging—simple and relatively effortless. Its light weight and easy conversion between functions are major benefits.
The limitations are clear: it’s not a powerhouse. You need to pair it with a decently sized battery for best results, and it’s meant for maintained yards, not jungle-taming.
If your needs align with its strengths, the NSW18 offers excellent value and convenience. It removes the hassle from lawn care, letting you finish the job quickly and move on to enjoying your garden. For many homeowners, that’s exactly what they’re looking for in a string trimmer.