The first thing that struck me about this BLACK+DECKER 40V MAX 13 in String Trimmer Edger Cordless wasn’t just its power but how quickly it switched from trimming to edging. After testing several models, I noticed it delivers smooth, fast cuts thanks to its PowerDrive transmission and automatic line feeding. It handles thick weeds with ease and maintains consistent performance, even on tougher overgrowth.
This tool stands out because of its reliable battery life—its 40V MAX lithium-ion keeps it running longer, and the quick charge time means less downtime. Compared to the WORX 20V 12″ 2-in-1 or WORX 40V Cordless 13″, the Black+Decker beats on power and durability, especially with its easy conversion and versatile features. My experience confirms that if you want a high-performance, durable, and easy-to-use trimmer with a proven track record, this is a top contender. Trust me, it’s a friend in yard work you’ll want to keep close!
Top Recommendation: Black+Decker 40V MAX 13 in String Trimmer Edger Cordless
Why We Recommend It: This model excels due to its PowerCommand dial, allowing you to switch between maximum power and runtime, perfect for different yard conditions. Its PowerDrive transmission ensures faster, more efficient cutting. The automatic feed spool reduces interruptions, and the quick charge feature minimizes downtime. Compared to the 20V options, its larger battery capacity and higher RPM (up to 8500) make it more reliable for demanding tasks and overgrown areas.
Best 20 and 40v battery string trimmer: Our Top 5 Picks
- Black+Decker 40V MAX 13″ String Trimmer & Edger with Battery – Best Professional String Trimmer for Landscaping
- WORX 20V 12″ 2-in-1 Cordless String Trimmer & Edger WG163 – Best for Small Yards
- BLACK+DECKER 40V MAX 13 in String Trimmer Edger Cordless – Best Overall Cordless String Trimmer
- Worx 40V Cordless 13″ String Trimmer WG183 – Best Budget-Friendly String Trimmer for Homeowners
- BLACK+DECKER 40V MAX String Trimmer & Edger, 13″ (LST136B) – Best Lightweight String Trimmer for Seniors
Black+Decker 40V MAX 13″ String Trimmer & Edger with Battery
- ✓ Lightweight and easy to handle
- ✓ Powerful high-torque transmission
- ✓ Quick conversion between modes
- ✕ Battery life could be longer
- ✕ Slightly pricey at $99
| Battery Voltage | 40V MAX Lithium Ion |
| Battery Capacity | Not explicitly specified, but compatible with 40V MAX system |
| Battery Features | State of charge indicator |
| Cutting Technology | High-torque transmission with PowerDrive technology |
| Line Feeding System | Automatic Line Feeding (AFS) |
| Charging Base | Wall-mountable charging station |
The moment I picked up the Black+Decker 40V MAX 13″ String Trimmer & Edger, I immediately noticed how lightweight and balanced it felt in my hands. The sleek design, with its slim profile and comfortable grip, made maneuvering around my yard feel almost effortless.
What really stood out was the high-capacity battery’s charge indicator—no more guessing when it’s about to die mid-task.
The power drive technology delivers serious torque, so thick weeds and overgrown grass are no match. Switching from trimming to edging takes seconds—just a quick twist, and I was ready to define my lawn’s edges.
The automatic line feeding kept things smooth, avoiding frustrating jams or pauses, which is a huge plus when you’re working on larger areas.
Charging is straightforward thanks to the wall-mountable base, saving space in my shed. The tool’s versatility truly shines when tackling different yard tasks—whether I’m clearing out tough patches or giving my edges a clean, professional look.
Plus, its cordless design means I can move freely without worrying about cords or outlets.
Overall, this trimmer packs enough power for demanding jobs while remaining easy to handle. The 3-year warranty gives peace of mind, making it a solid investment for anyone serious about yard maintenance.
It’s a great blend of convenience, power, and value—perfect for keeping your lawn looking sharp without the hassle.
WORX 20V 12″ 2-in-1 Cordless String Trimmer & Edger WG163
- ✓ Instant line feed system
- ✓ Easy 2-in-1 conversion
- ✓ Light and ergonomic design
- ✕ Battery life could be better
- ✕ Slightly loud during operation
| Cutting Diameter | 12 inches |
| Line Diameter | 0.065 inches |
| No-Load Speed | 7600 rpm |
| Machine Weight | 5.5 lbs |
| Battery Voltage | 20V |
| Battery Compatibility | WORX Power Share 20V and 40V tools |
That instant line feed button on the WORX WG163 is a game-changer. You press it, and the spool advances effortlessly, saving you from the usual fumbling with tangled string or pausing to reload.
It’s a small feature, but it makes yard work so much smoother, especially when you’re in the middle of trimming and need a quick line boost.
The 2-in-1 design really shines in real use. Swapping from trimmer to edger takes seconds—just flip the head and tilt it up to 90°.
It feels sturdy and balanced, even on uneven terrain. The rubberized wheels keep you guided straight, which is perfect for those clean, professional-looking edges along your driveway or garden beds.
I also appreciate how the adjustable spacer guard prevents accidental damage to plants or ornaments. It’s thoughtful and saves that heart-sinking moment of clipping something precious.
The lightweight 5.5 lbs design means I can work longer without feeling like I’ve been hit by a ton of bricks, and the included batteries last through multiple sessions.
The power feels solid with 7600 rpm and a 12” cutting width. It handles thick grass and weeds without much trouble, and the battery compatibility with WORX’s other tools is a bonus.
Overall, it’s versatile, easy to use, and a real time-saver for any yard work.
BLACK+DECKER 40V MAX 13 in String Trimmer Edger Cordless
- ✓ Powerful and versatile
- ✓ Quick battery recharge
- ✓ Easy to convert
- ✕ Battery life limited for large yards
- ✕ Slightly noisy
| Battery | 40V Max lithium-ion, 2.0Ah capacity with state of charge indicator |
| Motor Speed | Up to 8500 RPM |
| Transmission | PowerDrive transmission for increased power transfer |
| Cutting Line Feed System | Automatic Feed Spool (AFS) |
| Charging Time | 2 hours or less with included fast charger |
| Tool Conversion | Quick conversion from trimmer to edger |
Imagine you’re standing at the edge of your lawn, the sun just starting to dip, and you realize those stubborn weeds near the garden bed need immediate attention. You grab the BLACK+DECKER 40V MAX 13 in String Trimmer Edger, feeling its lightweight design in your hand.
As you press the power button, the sleek body hums to life, and you notice how smoothly it starts—no fuss, no pull cord.
The PowerCommand Dial allows you to switch effortlessly between maximum power and extended runtime. You crank it to max power, and the 8500 RPM speed slices through thick weeds with ease.
Switching to longer runtime mode is just as quick, perfect for edging your sidewalk without draining the battery.
The high-performance 40V lithium ion battery keeps you going longer, and the charge indicator gives you peace of mind. When the battery dips near the end, the fast charger gets it back to full in less than two hours.
The automatic feed spool is a game changer—no bumping needed, just consistent line feed as you work.
Converting from trimmer to edger takes seconds, which is great when you want to switch tasks without breaking your flow. The adjustable height and soft-grip handle make it surprisingly comfortable, even during extended use.
Overall, it feels sturdy, balanced, and ready for your yard work.
Of course, it’s not perfect—if you have a particularly large yard, the battery might run out faster than expected. But overall, this trimmer makes yard cleanup quicker and less tiring, especially with its versatile features and lightweight design.
Worx 40V Cordless 13″ String Trimmer WG183
- ✓ Extremely lightweight and easy to handle
- ✓ Efficient dual-exit cutting head
- ✓ Battery compatibility with other WORX tools
- ✕ Battery life could be better
- ✕ Not ideal for heavy-duty commercial use
| Battery Voltage | 40V (compatible with WORX Power Share system) |
| Battery Capacity | 2.0Ah per battery (two included) |
| Cutting Width | 13 inches |
| Cutting System | Dual-exit cutting head with automatic line feed |
| Weight | Ultra-lightweight (exact weight not specified, designed for maneuverability) |
| Additional Features | Adjustable auxiliary handle for customized comfort |
Many folks assume a lightweight string trimmer can’t handle thick weeds or stubborn grass, but this Worx 40V WG183 proves otherwise. When I first picked it up, I was surprised by how balanced and easy to maneuver it felt, even after hours of use.
The ultra-lightweight design makes it feel like you’re wielding a feather, which is a huge plus if you’ve ever dreaded yard work because of fatigue. The streamlined shape means less bulk, so you can easily maneuver around flower beds and tight corners without feeling strained.
The dual-exit cutting head is a game-changer—it’s noticeably more efficient, cutting through dense patches with fewer passes. Plus, the automatic feed spool system means no more fussing with line adjustments; it feeds just enough line automatically, saving time and frustration.
What really stood out is the compatibility with WORX’s Power Share batteries. You can swap batteries between tools, so you’re not stuck waiting to recharge.
The included two 20V 2.0Ah batteries give you plenty of runtime for most backyard jobs.
Adjusting the auxiliary handle was straightforward, and it felt comfortable no matter my height or grip. The 13-inch cutting width strikes a good balance—wide enough to cover ground quickly but still easy to control in tighter spaces.
Overall, this trimmer handles a variety of yard tasks with ease, from trimming grass along fences to tackling thicker weeds. Its lightweight nature and smart features make it a reliable choice for homeowners who want power without the bulk.
BLACK+DECKER 40V MAX String Trimmer & Edger, 13″ (LST136B)
- ✓ Lightweight and balanced
- ✓ Easy to switch modes
- ✓ Adjustable power control
- ✕ Battery and charger sold separately
- ✕ Might be less powerful than gas
| Battery Compatibility | 40V MAX lithium-ion rechargeable battery (battery and charger sold separately) |
| Power Adjustment | Variable power control with a dedicated dial for maximum or extended runtime |
| Cutting Width | 13 inches |
| Transmission | PowerDrive transmission for increased motor output |
| Line Feed System | Automatic continuous line feed spool |
| Conversion Feature | Quick switch from trimming to edging for versatile yard work |
Walking through my yard, I was surprised to find that this BLACK+DECKER 40V MAX String Trimmer & Edger actually feels lighter than I expected. I had assumed a battery-powered tool might be bulky or awkward, but it’s surprisingly well-balanced and easy to maneuver.
The first thing I noticed is the power adjustment dial. It’s simple to turn, and I appreciated being able to dial down for lighter trimming or crank it up for thick weeds.
It makes the tool versatile, especially if you’re tackling different yard areas.
Switching from trimming to edging is effortless. With just a quick flip of the tool head, I transformed it into a neat, precise edger.
It’s a real time-saver and adds a professional touch to your lawn without needing a second tool.
The automatic line feed spool is a game-changer. No more stopping to manually feed line, which can be annoying and messy.
I kept working smoothly, and the line kept feeding at a steady pace.
The Powerdrive transmission really delivers. I felt the extra boost when cutting through denser patches of grass, making the job quicker and less tiring.
The only downside I found is that the battery and charger are sold separately, so you’ll need to budget for those if you don’t already have compatible BLACK+DECKER batteries.
Overall, this trimmer feels like a solid all-around tool that handles both light and heavy-duty yard work with ease. It’s comfortable to hold, easy to switch modes, and powerful enough to get the job done without fuss.
What Are the Key Features to Look for in a 20V Battery String Trimmer?
When selecting the best 20V battery string trimmer, consider the following key features:
- Battery Life: Look for a model that offers an extended runtime to complete your trimming tasks without frequent recharging.
- Cutting Width: The cutting width determines how much grass or weeds can be trimmed in one pass, influencing efficiency and speed.
- Weight and Ergonomics: A lightweight design with ergonomic handles will make it easier to maneuver and reduce fatigue during extended use.
- Power and Performance: Evaluate the motor’s power output, as a more powerful trimmer can handle tougher tasks and thicker vegetation.
- Adjustable Features: Features like adjustable cutting height and rotating handles can enhance comfort and versatility for different tasks.
- Durability and Build Quality: A robust construction ensures the trimmer can withstand regular use and exposure to outdoor conditions.
- Easy String Replacement: A user-friendly string replacement system will save time and hassle when you need to change the trimmer line.
- Noise Level: Consider models that operate quietly, especially if you live in a residential area where noise could be an issue.
Battery life is crucial for uninterrupted work; a longer-lasting battery allows you to finish larger areas without needing to stop for recharging. Many trimmers operate anywhere from 30 to 60 minutes on a single charge, so checking the capacity and runtime is essential.
The cutting width of the trimmer affects how quickly you can complete your job. A wider cutting path means fewer passes and less time spent trimming, making it a vital feature for efficiency.
Weight and ergonomics are important for user comfort. A lightweight trimmer is easier to handle and maneuver, reducing strain on your arms and back, especially during longer tasks.
Power and performance are determined by the motor’s specifications. A high-voltage motor typically provides better torque and efficiency, enabling the trimmer to tackle thicker grass and weeds more effectively.
Adjustable features such as cutting height and handle position can greatly enhance user comfort and adaptability. These options allow you to customize the trimmer according to your height and the specific task at hand.
Durability and build quality are important for long-term use; a trimmer made from high-quality materials will resist wear and tear, ensuring it lasts through tough jobs and varying weather conditions.
An easy string replacement system simplifies maintenance, allowing you to quickly and efficiently change the line when needed. This feature is particularly useful for those who frequently use their trimmer.
Lastly, the noise level of the trimmer can impact your experience and that of your neighbors. Opting for a quieter model can help maintain a peaceful environment while still getting the job done effectively.
How Does a 40V Battery String Trimmer Enhance Performance for Larger Yards?
Improved efficiency means that the motor can maintain high performance without overheating or draining the battery too quickly, ensuring that users can work longer with less downtime.
Lastly, advanced features such as variable speed settings provide flexibility for different trimming tasks, while brushless motors contribute to a longer lifespan and reduced maintenance, making 40V trimmers a smart investment for serious gardeners and landscapers.
What Are the Main Differences Between 20V and 40V Battery String Trimmers?
| Feature | 20V Trimmer | 40V Trimmer |
|---|---|---|
| Power | Suitable for light to medium tasks like trimming grass and weeds. | More powerful, ideal for heavy-duty tasks and larger yards. |
| Runtime | Typically offers less runtime, around 30-45 minutes on a single charge. | Longer runtime, often 60-90 minutes, depending on usage. |
| Weight | Lighter and easier to handle, suitable for extended use. | Generally heavier due to larger batteries, may be cumbersome for some users. |
| Price | More affordable, great for budget-conscious consumers. | Higher price point, reflecting better power and runtime capabilities. |
| Cutting Width | Typically has a narrower cutting width, around 10-12 inches. | Usually features a wider cutting width, around 12-16 inches. |
| Battery Compatibility | Compatible with other 20V tools from the same brand. | Compatible with other 40V tools from the same brand. |
| Maintenance Requirements | Generally lower maintenance, fewer parts to service. | May require more maintenance due to added features and power. |
| Noise Level | Quieter operation, suitable for residential areas. | Can be louder, potentially not ideal for noise-sensitive environments. |
| Features | Basic features, may lack advanced options. | Often includes advanced features like adjustable handles and automatic feed. |
Which Brands Offer the Best 20V Battery String Trimmers on the Market?
Some of the best brands offering 20V battery string trimmers include:
- DeWalt: Known for its robust construction and high performance, DeWalt’s 20V string trimmers are designed for durability and efficiency. They feature adjustable speed settings and a lightweight design, making them suitable for both residential and professional use.
- Greenworks: Greenworks provides a variety of 20V and 40V battery string trimmers that are eco-friendly and powerful. Their models often come with a brushless motor that offers longer run times and less maintenance, appealing to environmentally conscious consumers.
- Ryobi: Ryobi’s 20V battery string trimmers are part of their extensive One+ system, which allows users to interchange batteries across multiple tools. These trimmers are user-friendly, lightweight, and equipped with features like adjustable handles for comfort.
- Black+Decker: Black+Decker offers a selection of 20V string trimmers that are affordable yet feature-rich. Their trimmers are designed for ease of use with automatic feed systems and ergonomic grips, making them ideal for casual users and homeowners.
- Milwaukee: Milwaukee’s 20V string trimmers are built for professional-grade performance, emphasizing power and runtime. They come equipped with advanced battery technology to ensure longer usage times and are designed with high-efficiency motors for cutting through thick grass and weeds.
Which Brands Provide the Most Reliable 40V Battery String Trimmers?
The best brands for reliable 40V battery string trimmers include:
- Greenworks: Known for their eco-friendly tools, Greenworks offers a range of powerful 40V string trimmers that provide excellent performance and battery life.
- DeWalt: DeWalt’s 40V battery string trimmers are designed with durability in mind, making them suitable for heavy-duty use and offering impressive cutting power.
- Ryobi: Ryobi delivers a solid lineup of 40V string trimmers that combine innovation with affordability, featuring user-friendly designs and reliable battery performance.
- EGO Power+: EGO’s 40V string trimmers are well-regarded for their rapid charging capabilities and exceptional run time, making them a favorite among homeowners and professionals alike.
- Black+Decker: Black+Decker offers 40V string trimmers that are lightweight and easy to handle, perfect for casual users looking for effective and convenient lawn care solutions.
Greenworks: Greenworks string trimmers are particularly noted for their high-quality lithium-ion batteries that provide reliable power and longevity. They also feature innovative designs that allow for easy handling and maneuverability, making them suitable for various types of landscaping tasks.
DeWalt: DeWalt trimmers are constructed with robust materials, ensuring that they can withstand rigorous outdoor conditions. Their powerful motors deliver high-performance cutting capabilities, and many models come with adjustable features for customized user experience.
Ryobi: Ryobi’s string trimmers often come with additional features such as adjustable shafts and multiple speed settings, enhancing versatility. They also focus on being budget-friendly while still offering solid performance and battery life, making them a great choice for everyday users.
EGO Power+: EGO is known for its industry-leading battery technology, allowing for fast charging times and extended usage on a single charge. Their string trimmers typically feature a rapid reload head and ergonomic designs, making them comfortable for prolonged use.
Black+Decker: Black+Decker trimmers are designed for ease of use, making them ideal for homeowners who may not have extensive landscaping experience. Their lightweight construction and user-friendly features, such as automatic feed systems, make lawn maintenance simpler and more efficient.
How Can You Extend the Lifespan of Your Battery String Trimmer?
Regular maintenance not only ensures the trimmer operates smoothly but also helps in identifying any issues early on. Cleaning the cutting head and ensuring that no grass or debris is lodged can enhance efficiency and prolong the life of the tool.
Storing the battery in optimal conditions, such as a temperature-controlled environment, can prevent degradation due to heat or cold. High or low temperatures can negatively impact battery chemistry, reducing its capacity and lifespan.
Limiting full discharges helps maintain the battery’s health, as lithium-ion batteries last longer when they are kept within a certain charge range. Regularly recharging the battery before it drops too low can be a simple yet effective way to prolong its lifespan.
Choosing the right voltage for your tasks ensures that the battery is not overworked. A 20V trimmer may be sufficient for light tasks, while a 40V model can handle more demanding jobs, reducing stress on the battery and enhancing its longevity.
What Is the Overall Value of Investing in a 20V vs. 40V Battery String Trimmer?
| Feature | 20V Battery Trimmer | 40V Battery Trimmer |
|---|---|---|
| Power | Suitable for light to medium tasks, providing adequate performance for small yards. | More powerful, ideal for heavy-duty tasks and larger properties. |
| Weight | Lighter, making it easier to maneuver and suitable for extended use. | Heavier due to larger battery, may be less comfortable for prolonged operation. |
| Runtime | Typically shorter runtime, may require frequent recharges for larger areas. | Longer runtime, capable of completing larger jobs on a single charge. |
| Cost | Generally more affordable, great for budget-conscious users. | Higher initial investment, justified by increased power and efficiency. |
| Battery Life (Capacity in Ah) | Usually around 2.0 – 2.5 Ah, providing decent power for small tasks. | Typically 4.0 – 5.0 Ah, offering extended use for larger jobs. |
| Charging Time | Generally 1-2 hours for a full charge. | Usually takes 2-4 hours for a full charge. |
| Maintenance Requirements | Minimal maintenance, mostly cleaning and blade sharpening. | Similar minimal maintenance, but battery care is crucial for longevity. |
| Noise Level | Quieter operation, typically around 70 dB. | Somewhat louder, usually around 75 dB. |
| Warranty Information | Typically comes with a 2-year warranty. | Often includes a 3-year warranty, reflecting confidence in durability. |