BLACK+DECKER 20V* MAX String Trimmer or BLACK+DECKER 40V MAX 13 Inch? Which BLACK+DECKER Model to Buy
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When comparing the black decker 20v max string trimmer vs 40v max 13 inch, you face a choice between two distinct power systems. Both tools offer trimming and edging capabilities with adjustable handles for comfort. The primary difference lies in their voltage and cutting width. The 20V model features a 12-inch swath, while the 40V option provides a 13-inch cut. You also need to consider the line feed system and battery technology to determine which fits your yard size and maintenance routine.
Key differences
| Aspect | BLACK+DECKER 20V MAX 12-Inch String Trimmer and Edger | BLACK+DECKER 40V 13-Inch String Trimmer and Edger |
|---|---|---|
| Voltage | 20V | 40V |
| Cutting Width | 12 inches | 13 inches |
| Line Feed System | Push-button (EASYFEED) | Automatic (AFS) |
| Warranty | 2 years | 3 years |
Which one should you choose?
Choose BLACK+DECKER 20V MAX 12-Inch String Trimmer and Edger if
- You prefer a lighter, more compact tool for smaller yards.
- You want manual control over line advancement with the push-button system.
- You already own other 20V MAX tools for shared battery compatibility.
Choose BLACK+DECKER 40V 13-Inch String Trimmer and Edger if
- You need extra torque for thicker grass and overgrowth.
- You want automatic line feeding for uninterrupted trimming.
- You prefer a longer warranty period for peace of mind.
Verdict: Choose the 20V model if you prioritize a lighter weight and manual line control for smaller, lighter jobs. Select the 40V model if you require more power for dense weeds and want the convenience of automatic line feeding. Both are versatile, but the 40V system offers greater cutting strength for tougher conditions.
Comparing Black and Decker Trimmers
Voltage and Power
The BLACK+DECKER 20V MAX 12-Inch String Trimmer and Edger operates on a 20V MAX* system. This voltage level is designed for lighter tasks and offers good runtime efficiency. In contrast, the BLACK+DECKER 40V 13-Inch String Trimmer and Edger uses a 40V MAX* Lithium Ion battery. The higher voltage provides more raw power and torque. This makes the 40V model better suited for tougher vegetation. If you have thick grass or dense weeds, the extra voltage helps maintain speed. For small lawns with light weeds, the 20V system is sufficient. You should choose based on the density of the growth you face.
Cutting Width
Cutting width determines how much area you clear with each pass. The 20V model features a 12-inch cutting swath. This width is manageable for tight spaces and edges. The 40V model offers a 13-inch cutting swath. The one-inch difference may not seem large, but it adds up over time. A wider cut means fewer passes to cover the same ground. This can save time during larger jobs. The 40V trimmer covers more area per swing. If you want to reduce the number of strokes needed, the wider deck is advantageous. For narrow paths, the 12-inch width might feel more agile.
Line Feed System
How the trimmer line advances affects your workflow. The 20V model uses an EASYFEED push-button system. You advance the line by pressing a button, eliminating the need to bump the head on the ground. This keeps the line clean and ready. The 40V model utilizes an Automatic Feeding System (AFS). This system supplies trimmer line automatically as you work. It keeps the string moving smoothly without interruption. You do not need to stop or press buttons. Both systems avoid the frustration of traditional bump-feed heads. The automatic system offers continuous operation, while the push-button gives you manual control over line advancement.
Weight and Maneuverability
Weight impacts how tired you get during use. The 20V String Trimmer and Edger weighs 6.3 pounds. It is slightly lighter than its counterpart. The 40V String Trimmer and Edger weighs 6.4 pounds. The difference is only 0.1 pounds. This negligible variation means you will not feel a significant difference in fatigue. Both tools include adjustable handles and height settings for comfort. The 20V model has a premium soft grip. The 40V model focuses on high-torque transmission for power. For most users, the weight difference is irrelevant. You should prioritize power needs over this minor weight discrepancy.
Warranty Coverage
Warranty protection offers peace of mind for your investment. The 20V model comes with a 2-Year Limited Warranty. This covers defects in materials and workmanship for two years. The 40V model includes a 3-Year Limited Warranty. This provides an additional year of coverage compared to the 20V version. A longer warranty suggests confidence in the product's durability. It also reduces your risk if issues arise later. For a tool used seasonally, an extra year of protection is valuable. If you plan to use the trimmer heavily, the longer warranty is a clear benefit. It offers more security for your purchase.
Which BLACK+DECKER Trimmer Suits You
Users needing automatic line feeding
The 40V model features an Automatic Feeding System that supplies trimmer line without interruption. This keeps your work smooth and efficient. You get a wider 13-inch cutting swath for faster coverage. The high-torque transmission ensures clean cuts even in thick grass, making it ideal for maintaining a manicured lawn with minimal effort.
Budget-conscious buyers with 20V tools
This 20V MAX model integrates seamlessly with your existing battery system. It offers a 12-inch cutting width and two-speed control to balance power and runtime. The push-button line advance eliminates bumping. It is lighter at 6.3 pounds and includes a long-runtime battery, charger, and spare spool for immediate use.
Those wanting versatile storage options
The 40V version includes a wall-mountable charging base. This saves floor space and keeps your tool ready for use. The state of charge indicator helps you monitor energy levels during tasks. With a 13-inch swath and automatic line feeding, it handles overgrowth effectively while offering convenient storage solutions for your garage or shed.
The products compared
BLACK+DECKER 20V MAX 12-Inch String Trimmer and Edger
Best for: Small yards needing lightweight, easy line feed
- Voltage
- 20V
- Cutting Swath
- 12 in
- Power Source
- battery
- Line Feed System
- push-button
- Cutting Width
- 12-Inch
- Included Battery
- Battery and Charger Included
View on Amazon: BLACK+DECKER 20V MAX 12-Inch String Trimmer and Edger Affiliate link
This BLACK+DECKER 20V MAX string trimmer features a 12-inch cutting width and a push-button line feed system. You can adjust the speed to boost power or extend runtime. The unit weighs 6.3 pounds and includes a 20V battery and charger. It is designed for small to medium lawns where maneuverability matters. The adjustable handle and soft grip improve comfort during use. This model suits those who prefer a lightweight, easy-to-handle tool for precise trimming tasks.
Pros
- Push-button EASYFEED line advancement requires no bumping
- 2-speed control allows you to boost power or extend runtime
- PowerDrive Transmission increases torque at the string
- Includes 20V MAX battery and charger
Cons
- 12-inch cutting width is narrower than the 13-inch option on this list
- Single battery included in the base kit
- No remote or smart app connectivity
Good fit if
- You need a lightweight tool for small yards
- You prefer push-button line advancement over bumping
- You already own other 20V MAX BLACK+DECKER tools
Skip if
- You want a wider 13-inch cutting swath
- You need edging capabilities included in the same unit
- You require a higher voltage for heavy-duty tasks
Verdict: BLACK+DECKER 20V MAX 12-Inch Trimmer is a practical choice for users with small lawns who value lightweight handling and easy line advancement. It fits those who already use the 20V MAX system and do not need the extra cutting width or edging function of the 40V model.
BLACK+DECKER 40V 13-Inch String Trimmer and Edger
Best for: trimming and edging thick grass
- Voltage
- 40V
- Cutting Swath
- 13 in
- Power Source
- battery
- Line Feed System
- automatic
- Cutting Width
- 13-Inch
- Application
- Lawn
View on Amazon: BLACK+DECKER 40V 13-Inch String Trimmer and Edger Affiliate link
This BLACK+DECKER tool combines trimming and edging with a 40V MAX battery and a 13-inch cutting swath. It features automatic line feeding to keep the string stocked without interruption. The high-torque transmission handles thick grass and weeds effectively. You can switch between functions in seconds. The kit includes a battery and charger, plus a wall-mountable charging base for convenient storage.
Pros
- 40V MAX lithium-ion battery with state of charge indicator
- 13-inch cutting swath for efficient coverage
- Automatic line feeding system reduces interruptions
- High-torque transmission for clean cuts in overgrowth
- Quick conversion from trimming to edging
Cons
- 6.4-pound weight may feel heavy during extended use
- 13-inch cutting width is narrower than larger mowers
- No remote control or smart app connectivity
Good fit if
- You need a single tool for both trimming and edging
- You want automatic line feeding to avoid manual reloading
- You have thick grass or weeds after mowing
Skip if
- You prefer a wider cutting swath for faster coverage
- You want a lighter tool for overhead use
- You need smart connectivity or remote operation
Verdict: BLACK+DECKER 40V MAX 13-Inch Trimmer fits users who want a versatile trimmer and edger with automatic line feeding. It is ideal for tackling thick overgrowth with a dedicated 40V battery system.
Specifications side by side
| Spec | BLACK+DECKER 20V MAX 12-Inch String Trimmer and Edger | BLACK+DECKER 40V 13-Inch String Trimmer and Edger |
|---|---|---|
| Voltage | 20V | 40V |
| Cutting Swath | 12 in | 13 in |
| Power Source | battery | battery |
| Line Feed System | push-button | automatic |
| Cutting Width | 12-Inch | 13-Inch |
| Application | not stated | Lawn |
| Included Battery | Battery and Charger Included | not stated |
| Dimensions | 41.3 × 9.2 × 5 inches | 9 × 40 × 4 inches |
| Weight | 6.3 pounds | 6.4 pounds |
| Size | One Size | One Size |
| Color | Black | Orange |
| Model | LSTE523 | LST140C |
Frequently asked questions
Is the 20V model heavy for small yards?
The 20V MAX 12-Inch String Trimmer weighs 6.3 pounds. This lightweight design makes it easy to handle for users with small lawns. It is practical for those who value maneuverability over raw power. The compact size helps reduce fatigue during extended use in tight spaces.
Does the 40V trimmer have automatic line feed?
Yes, the 40V MAX 13-Inch model features an automatic line feeding system. This mechanism supplies trimmer line without interruption, keeping your work smooth and efficient. You do not need to manually bump the head to advance the line, which saves time when tackling thick overgrowth.
Which model cuts a wider path?
The 40V MAX 13-Inch String Trimmer offers a 13-inch cutting width. This provides a wider swath for faster coverage compared to the 12-inch model. The 20V MAX version has a 12-inch cutting width, which is sufficient for smaller areas but covers less ground per pass.
Can I use these trimmers as edgers?
Both models function as string trimmers and edgers. The 20V MAX 12-Inch unit includes this dual capability for versatile yard maintenance. Similarly, the 40V 13-Inch model allows you to switch between trimming and edging tasks. This versatility helps you maintain lawn edges and hard-to-reach areas effectively.
Is the 40V system better for thick grass?
The 40V model is ideal for tackling thick overgrowth. Its high-torque transmission and higher voltage provide the power needed for dense vegetation. If you deal with thick grass regularly, the 40V system offers the necessary performance to cut through it efficiently without bogging down.
What is the weight difference between the two?
The 20V MAX 12-Inch Trimmer weighs 6.3 pounds. The 40V 13-Inch Trimmer weighs 6.4 pounds. The difference is minimal, at just 0.1 pounds. Both tools offer similar handling weights, allowing you to choose based on power needs rather than significant weight concerns.
Do I need a specific battery for each?
The 20V MAX model requires a 20V MAX battery. The 40V model uses a dedicated 40V battery system. These systems are not cross-compatible. You should select the model that aligns with your existing battery ecosystem or purchase the appropriate battery for the new tool.
Which is best for beginners with small yards?
The 20V MAX 12-Inch String Trimmer is a practical choice for small yards. It offers lightweight handling and easy line advancement. Users with small lawns who do not need extra cutting width will find this model sufficient. It fits those who prioritize ease of use and maneuverability.