Black + Decker 40-volt Cordless Chainsaw

Last updated: April 10, 2019

Black + Decker 40-volt Cordless Chainsaw

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We looked at the top Electric Chainsaws and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Electric Chainsaw you should buy.

Overall Take

In our analysis of 118 expert reviews, the Black + Decker 40-volt Cordless Chainsaw placed 5th when we looked at the top 9 products in the category. For the full ranking, see below.

From The Manufacturer

The BLACK+DECKER LCS1240 12″ 40V Cordless Chainsaw features a 40V MAX Lithium Ion Battery for longer runtime and overall life – it stays charged up to 5x longer. It has a 12″ Oregon low-kickback bar and chain which provides smooth and fast cuts. The tool-free chain tensioning allows for quick and easy chain adjustments, and it also features a lightweight design for ease of use and maneuverability. The automatic oiling system ensures constant bar and chain lubrication, and the wrap around bale handle provides increased control and comfort. The standard charger provided will charge a fully depleted battery in about 4-5 hours. 1. Plug the charger into an appropriate outlet before inserting the battery pack. 2. Insert the battery pack into the charger. 3. The green LED will flash indicating that the battery is being charged. 4. The completion of charge is indicated by the green LED remaining on continuously. The pack is fully charged and may be used at this time or left on the charger.

Expert Reviews

What experts liked

High-quality cordless chainsaw that's great for small/medium gardens.
The thing that makes this unit great is its reliability and longevity. On top of that, you can take it wherever you want without having to think about extension cords and gas refills. In other words, when it comes to convenience – this is the ideal solution. On the other hand, it does have certain limitations due to the lack of power. The other thing we liked is the price. While many cordless models tend to have a pretty hefty one, this model is surprisingly reasonably priced. Now, that doesn’t mean it’s a cheap piece of equipment per se, but it’s definitely a worthy investment for people that are going to use its full potential. Also, the 2-hour recharge time doesn’t seem as long as one would expect.
The most notable feature of the Black and Decker 40V chainsaw is its side-loading 40V battery which powers the saw without the need for 2-cycle fuel. You still need to add chain oil to keep the Oregon 12″ bar and chain lubricated, but the battery and electric motor are what’s driving the saw as it cuts.
The fact that this is for light work means that it should stand up to regular use. All components have been fitted well, and the construction of the large tension adjuster is also noteworthy, allowing for tool free adjustment.
The BLACK+DECKER 40V MAX lithium ion chainsaw comes with a long-lasting lithium ion battery that has a long run time and a longer life than many comparable batteries. It also has a tool-free chain tensioner adjustment option for easy maintenance.
The Black+Decker LCS1240 can do more work with less effort than small chainsaws, with it's 12" bar and 40V motor.
The convenience of portable, cordless maneuverability gives these Black & Decker cordless Chainsaws a well-deserved place in our top ten. This battery-powered, cordless saw sports a tool-free chain tension system to provide powerful sawing with fast, efficient cuts, an ergonomic-friendly full wraparound handle, and weighs only 8 pounds, so it is easy and convenient to port anywhere.
This is a powerful chainsaw that is popular for its ability to the convenience of cordless maneuverability. It provides the needed power to cut through live wood and logs. It has a 12-inch bar and chain. This includes a tool free chain tension that provides serious cutting power and fast and efficient cuts. The need for manual oiling of this saw is eliminated with this tool. The tool emits the oil by itself. It constantly oils the bar and chain as needed.
- The Z9
You can control battery life thanks to a charge indicator. Black & Decker electric chainsaw is very compact and lightweight. The battery can be used in other Black & Decker tools.
Comfortable full wrap-around handle. Low-kickback for fast and smooth cuts.
Oregon low kickback bar and chain minimizes vibration and improves cut speed. Window provides easy visibility for gauging oil level and 40-volt lithium-ion battery can hold a charge for up to 18 months.
The Black and Decker LCS1240 is the cheapest model we reviewed while still a great quality small saw.
This chainsaw possesses a saw arm of 12 inches, allowing it to cut stumps and branches of up to 12 inches in diameter. Equipped with an automatic oiling system, it stays lubricated as long as it’s filled with oil. Like the other B+D chainsaw reviewed on our list, this chainsaw can have its tension adjusted without the use of a tool.
Small handy elegant design. Less chain tension with auto lubrication system.
It is so lightweight and ergonomic that you can cut in many angles. In addition, there is a low kickback bar to reduce the risk of getting injured for the chainsaw user. Lastly, it also has auto-tensioning and auto-oiling features.

What experts didn't like

Small bar size, modest performance, moderate battery life.
As with all other cordless models, most people will struggle with the certain limitations such as power or battery capacity. The other thing that is being frowned upon by many users is the lack of oil capacity. In other words, make sure you keep the bar and chain oil handy because of the small reservoir capacity. It’s not a major downside, but it’s definitely one worth pointing out. The battery sometimes needs time to cool off before starting the recharge cycle. It will error out most of the time while it’s hot.
The bucking spikes are plastic, so there’s not a ton of leverage you can get with the saw if you happen to be cutting into larger diameter logs.
One downside to this particular battery and charger set, is that the recharge time is between 4 – 4.5 hours for a full charge from empty. This time is significantly longer than some competing battery powered chainsaws.
Might leak oil hence advisable to empty the oil tank after use.
- The Z9
Oiling system feeds too much oil on a bar, so you might need to fill it quite often.
Significantly pricier. Relatively smaller chain bar.
Battery only lasts about 30 minutes with continuous use and chain speed is lower than a gas chainsaw.
Extra sharp some time prove dangerous.


Chainsaws can be both noisy and gas-consuming, but there’s an alternative on the market. Both battery-powered and electric chainsaws give you the tool you need to tackle big jobs without the issues that come with gas-powered chainsaws.

Traditionally, electric chainsaws have lacked the cutting power of their gas counterparts, but improvements in design have narrowed the gap considerably. You still may not be able to take down larger trees with it, but it will do typical yard-related jobs easily. You will get more power from a corded than a battery-powered chainsaw, though, so take an honest look at the types of jobs you’ll be doing before you start shopping.

Why go with an electric chainsaw? There are many benefits. One is simply that you won’t have to worry about all the things that typically come with these tools. With a gas-powered chainsaw, you have to make sure you have enough fuel on hand before you start working. You’ll also deal with pollutants like exhaust, which is bad for the environment along with whatever it’s doing to your lungs. Additionally, electric chainsaws are generally much quieter than their gas-powered counterparts.

In addition to still falling behind when it comes to power, electric-powered chainsaws bring the annoyance of the cord. It limits your reach, which can be tough for an item that’s popular for use far away from power sources. You’ll also have to work around the cord, which can become a tripping hazard, in addition to snagging on objects. Battery-powered chainsaws remove the cord from the equation, but they’re limited by battery life, often fading in power as the battery depletes.

Some of today’s electric chainsaws also build in features that cut down on maintenance. A self-sharpening system will keep every cut as efficient as possible. Some newer electric chainsaws also have automatic chain tightening and lubrication, saving you the inconvenience of having to take care of those things manually.

If you buy a chainsaw, it’s also important to consider safety. Eye protection rated as safe for use with chainsaws is a must since debris is one of the biggest risks you’ll face. You should also wear gloves and work boots, as well as clothes that fit tightly enough to prevent getting in the way while you’re working.

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