BLACK+DECKER 20V MAX 6-inch Review

Introduction: Why I Picked Up the BLACK+DECKER 20V MAX 6-Inch Mini Chainsaw

I have been working with chainsaws for years, both as a hobbyist and as someone who maintains a small property with a mix of ornamental trees and overgrown brush. When I first saw the BLACK+DECKER 20V MAX 6-inch mini chainsaw, I was skeptical. A 6-inch bar powered by a 20V battery seemed almost like a toy compared to the gas-powered beasts I was used to. But after a season of heavy pruning, clearing storm damage, and trimming back shrubs, I realized that there is a real place for a tool like this in any yard. I bought this saw myself, no sponsorship, no freebie, because I needed something light enough to use one-handed while balancing on a ladder, and I did not want to drag out a heavy extension cord or mix gas.

This review is based on several weeks of real-world use: cutting through dead branches, live oak limbs, cedar, and even some softwood scrap. I want to give you an honest look at what this saw can and cannot do. There is a lot of hype around mini chainsaws right now, and the BLACK+DECKER 20V MAX is one of the most affordable options out there. But affordability does not always mean value. Let me walk you through exactly how it performed, where it struggled, and who I think should buy it.

How I Tested It

I did not set up a lab or use any fancy measuring equipment. I tested this saw the way most homeowners would: I took it to my yard and used it for every pruning and light cutting task I could find over three weeks. I started with small tasks like trimming dead branches from a mature maple tree, then moved to thicker limbs from a fallen oak branch, and finally tried cutting through some pressure-treated 2×4 lumber left over from a deck project.

I used the included battery and charger exclusively. I did not swap in a higher-capacity battery from another tool because I wanted to test the kit as it comes out of the box. I also did not modify the chain or bar. I followed the manual for chain tensioning and oiling (the saw requires manual oiling, which I will get into later). I timed cuts, noted how many cuts I could get per charge, and paid close attention to how the saw felt in my hands during extended use. I also tested it in wet conditions (light rain) and dry conditions to see if the plastic housing or motor had any issues.

I made sure to push the saw to its limits. If a branch was too thick, I tried anyway. I wanted to know exactly where this tool stops being useful and becomes frustrating. My goal was to give you a realistic picture of what to expect, not a marketing brochure.

Performance: Where It Shines and Where It Falls Short

Cutting Power: Great for Small to Medium Branches

The first thing I noticed is how quickly this saw cuts through green wood. On branches up to about 4 inches in diameter, the 20V motor and 6-inch bar make short work of the material. I was able to clean up a pile of storm-fallen limbs (mostly maple and poplar) in under 30 minutes. The chain speed is decent, and the cut quality is surprisingly clean for a tool in this price range. I did not experience any binding or kickback as long as I kept the chain sharp and properly tensioned.

However, when I tried to cut through a 6-inch thick oak limb, the saw struggled. It stalled multiple times, and I had to rock the bar back and forth to free it. This is not a tool for felling trees or cutting large logs. The manual says the maximum cut capacity is around 5 to 6 inches, but I found that anything over 4 inches required patience and multiple passes. If you try to force it, you will either stall the motor or dull the chain quickly.

Battery Life: Enough for Light Work

The included 1.5Ah battery gives you about 15 to 20 minutes of continuous cutting. That might sound short, but for pruning and small jobs, it is actually plenty. I was able to cut about 30 to 40 branches (ranging from 1 to 4 inches) on a single charge. The battery charges fully in about 45 minutes, which is reasonable. If you have a larger yard or plan to do heavy trimming, you will want a second battery. But for the average homeowner, the included battery is sufficient for a weekend of light work.

One thing I appreciated is that the battery indicator on the tool lets you know when power is dropping. It does not just die suddenly. You get a warning, which gives you time to finish a cut or safely stop.

Chain Tensioning: A Fiddly Process

This is one of the biggest drawbacks. The chain tensioning system on the BLACK+DECKER 20V MAX is not tool-less. You need to loosen a nut with the included wrench, adjust the tension screw, and then retighten. It is not difficult, but it is annoying, especially if you are switching between different wood types or if the chain stretches during use. I had to adjust the tension three times during my testing because the chain kept loosening after a few cuts. A tool-less tensioning system would have been a major improvement.

Also, the chain does not have an automatic oiler. You have to manually oil the bar and chain before each use. This is not a dealbreaker, but it is easy to forget, and running the saw dry will damage the bar and chain quickly. I recommend keeping a small bottle of bar and chain oil nearby at all times.

Build Quality and Value

Construction: Plastic but Sturdy

The housing is mostly high-impact plastic, which keeps the weight down to just over 4 pounds with the battery installed. That is incredibly light. I could hold it in one hand for extended periods without fatigue. The plastic feels thick and durable, but I would not drop it from a ladder. The bar is a standard 6-inch Oregon bar, which is a reputable brand, and the chain is a standard pitch that you can replace easily at any hardware store.

The handguard is small but functional. The trigger is comfortable and has a safety lockout that prevents accidental starts. The battery slides in securely and locks with a satisfying click. Overall, the build quality feels appropriate for the price point. It is not a professional-grade tool, but it is not meant to be. It is a homeowner tool, and it feels solid enough for that role.

Value: One of the Most Affordable Options

When I bought this saw, it was priced around $80 to $90 for the kit with battery and charger. That is extremely affordable compared to other mini chainsaws from brands like Milwaukee or DeWalt, which can cost two to three times as much. You are getting a complete system out of the box. No need to buy a separate battery or charger. For a homeowner who only needs a saw for occasional pruning, this is a fantastic value.

However, you do get what you pay for. The lack of auto-oiling and the fiddly chain tensioning are direct results of cost-cutting. If those features are important to you, you will need to spend more. But if you are willing to accept a few manual steps, the savings are significant.

Who Should Buy the BLACK+DECKER 20V MAX Mini Chainsaw?

Ideal For:

• Homeowners with small to medium yards who need a light saw for pruning shrubs, trimming small branches, and cutting firewood for a campfire.
• People who work off ladders or in tight spaces where a full-size chainsaw is too heavy or dangerous.
• DIYers and hobbyists who want a battery-powered saw for light cutting tasks without dealing with gas or cords.
• Anyone on a tight budget who needs a functional chainsaw for occasional use and does not want to invest in a premium system.
• First-time chainsaw users who want a less intimidating tool to learn on before moving to a larger saw.

Not Ideal For:

• Professional landscapers or tree surgeons who need a saw for daily heavy use.
• Anyone cutting large logs over 5 inches in diameter on a regular basis.
• People who dislike manual maintenance like adjusting chain tension and oiling the bar before each use.
• Those who need a saw for felling trees or cutting dense hardwoods like oak or hickory in thick sections.