When choosing a string trimmer powered by a battery, the key considerations are runtime, power, and ease of use. The best overall pick, the Greenworks 60V 16-inch Cordless String Trimmer, balances strong performance with long battery life, making it suitable for larger yards. The Black+Decker 40V MAX 13-inch String Trimmer offers excellent value for smaller spaces and lighter tasks, while the EGO POWER+ 15-inch Trimmer stands out for its premium build and battery longevity. The main tradeoffs in this category revolve around battery capacity versus weight, and power versus affordability. Keep reading for a detailed breakdown of each option and what suits different needs best.
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Key Takeaways
- Higher voltage batteries generally provide longer runtime and more power, but often come with increased weight.
- Battery compatibility across brands can be limited, so choosing a system-specific trimmer may add value for future upgrades.
- Trim width impacts efficiency; larger cutting paths can reduce the number of passes needed but may be heavier and more expensive.
- Balancing weight and power is key—lighter models excel for small yards or extended use, while heavier-duty options suit larger properties.
- Battery life varies significantly; models with larger Ah ratings or dual-battery setups tend to last longer but cost more upfront.
| 13-Inch Electric Weed Wacker 4-in-1 Cordless String Trimmer Lawn Edger Mower Brush Cutter with Dual 21V 6.0Ah Batteries and Charger | ![]() | Best Overall for Versatility and Battery Life | Power: 15000RPM brushless motor | Battery: 2x 21V 6.0Ah rechargeable batteries | Cutting Width: 13 inches | VIEW ON AMAZON | See Our Full Breakdown |
| Greenworks 60V 16 in Cordless String Trimmer with 2.5 Ah Battery | ![]() | Best for Power and Large Yard Coverage | Motor: Brushless | Voltage: 60V | Battery: 2.5 Ah | VIEW ON AMAZON | See Our Full Breakdown |
| Black+Decker 40V MAX 13 Inch String Trimmer and Lawn Edger with Battery and Charger | ![]() | Best for Maintaining Small to Medium Lawns | Power Source: Lithium Ion | Cutting Width: 13 inches | Number of Batteries: 1 | VIEW ON AMAZON | See Our Full Breakdown |
| Electric Cordless String Trimmer with 2.0Ah Battery & Charger, 20V Lawn Tool | ![]() | Best for Beginners and Light Yard Work | Battery: 2 x 2.0Ah lithium-ion | Voltage: 20V | No-load Speed: 9500 RPM | VIEW ON AMAZON | See Our Full Breakdown |
| MZK 20V 12-Inch Cordless Weed Wacker with 4.0Ah Battery | ![]() | Best for Heavy-Duty Trimming and Long Battery Life | Power Source: Battery Powered | Cutting Width: 12 inches | Speed: 8000 rpm | VIEW ON AMAZON | See Our Full Breakdown |
| EGO POWER+ 15″ Cordless Weed Trimmer with Battery and Charger | ![]() | Best Overall Cordless Trimmer with Long Runtime | Cutting Width: 15 inches | Battery: 2.5Ah included | Runtime: Up to 45 minutes | VIEW ON AMAZON | See Our Full Breakdown |
| EGO Power+ 15″ Cordless Weed Trimmer with Battery and Charger | ![]() | Best for Ergonomic Flexibility and Quick Line Loading | Cutting Width: 15 inches | Line Diameter: 0.095 inch | Battery: 2.5Ah included | VIEW ON AMAZON | See Our Full Breakdown |
| Craftsman V20 String Trimmer and Lawn Edger Kit with 4Ah Battery and Charger | ![]() | Best for Extended Runtime and Versatility | Power Source: Battery Powered | Cutting Width: 13 inches | Number of Batteries: 1 | VIEW ON AMAZON | See Our Full Breakdown |
| WORX 20V 12″ 2-in-1 Cordless String Trimmer & Edger, WG163 | ![]() | Best for Budget-Friendly Versatility | No-load speed: 7600 rpm | Cutting diameter: 12 inches | Weight: 5.5 lbs | VIEW ON AMAZON | See Our Full Breakdown |
| EGO POWER+ 16″ Cordless Weed Trimmer with Battery and Charger | ![]() | Best for Extended Cutting and Comfort | Blade Length: 16 inches | Battery: 4.0Ah included | Charge Time: 55 minutes | VIEW ON AMAZON | See Our Full Breakdown |
| WORX 20V 12″ Cordless String Trimmer & 360 CFM Leaf Blower Kit, WG928 | ![]() | Best Versatile Combo for Small to Medium Yards | Power Source: 20V Battery | Trimmer Length: 12 inches | Leaf Blower Airflow: 360 CFM | VIEW ON AMAZON | See Our Full Breakdown |
| BLACK+DECKER 20V MAX String Trimmer and Edger 2-in-1, Cordless Weed Wacker with Auto Spool Feed, Battery and Charger Included, 12 Inch Steel Deck, Reduced Vibration | ![]() | Best for Versatility and Smooth Operation | Power: 20V MAX | Cutting Width: 12 inches | Features: Auto spool feed, lightweight, adjustable handle | VIEW ON AMAZON | See Our Full Breakdown |
| 20V Cordless String Trimmer with 2 Batteries and Charger | ![]() | Best for Compact Storage and Small Yards | Battery: 2 x 2.0Ah | Motor Speed: 9,500 RPM | Cutting Width: 12 inches | VIEW ON AMAZON | See Our Full Breakdown |
| string trimmers battery | Cutting Width | Battery |
|---|---|---|
| 13-Inch Electric Weed Wacker 4 | 13 inches | 2x 21V 6.0Ah rechargeable batteries |
| Greenworks 60V 16 in Cordless | 16 inches | 2.5 Ah |
| Black+Decker 40V MAX 13 Inch S | 13 inches | — |
| Electric Cordless String Trimm | 12 inches | 2 x 2.0Ah lithium-ion |
| MZK 20V 12-Inch Cordless Weed | 12 inches | — |
| EGO POWER+ 15" Cordless Weed T | 15 inches | 2.5Ah included |
| EGO Power+ 15" Cordless Weed T | 15 inches | 2.5Ah included |
| Craftsman V20 String Trimmer a | 13 inches | — |
| WORX 20V 12" 2-in-1 Cordless S | — | — |
| EGO POWER+ 16" Cordless Weed T | — | 4.0Ah included |
| WORX 20V 12" Cordless String T | — | — |
| BLACK+DECKER 20V MAX String Tr | 12 inches | 1 x 2.0 Ah lithium-ion |
| 20V Cordless String Trimmer wi | 12 inches | 2 x 2.0Ah |
More Details on Our Top Picks
13-Inch Electric Weed Wacker 4-in-1 Cordless String Trimmer Lawn Edger Mower Brush Cutter with Dual 21V 6.0Ah Batteries and Charger
This 4-in-1 tool stands out for its ability to tackle multiple yard tasks with a single device, making it a versatile choice for homeowners who want a multi-functioning machine. Compared with the Black+Decker 40V MAX model, it offers more adaptability, especially with its interchangeable blades for edging, mowing, or brush cutting. While its 2x 21V 6.0Ah batteries provide long runtime, they may still fall short for very large properties, and the weight of 5.2 lbs could be tiring for prolonged use. The adjustable telescopic pole and multiple blades improve comfort and performance, but the need to switch blades depending on the task adds minor complexity. Overall, this pick excels for those seeking a multi-use tool with substantial battery capacity, but it requires some effort to manage its weight and blade changes.
Pros:- Versatile 4-in-1 functionality covers multiple yard tasks
- Long-lasting two 21V 6.0Ah batteries reduce recharge frequency
- Adjustable height and telescopic pole for comfort
- Includes comprehensive accessories for different tasks
Cons:- Battery life may be insufficient for large or overgrown yards
- Weight of 5.2 lbs could cause fatigue during extended use
Best for: Homeowners with varied yard needs who want a single, adaptable machine.
Not ideal for: Users with very large lawns or extensive overgrowth, as battery life might limit continuous work.
- Power:15000RPM brushless motor
- Battery:2x 21V 6.0Ah rechargeable batteries
- Cutting Width:13 inches
- Weight:5.2 lbs
- Warranty:3-year for main machine, 2-year for batteries
Our verdict“This is a strong choice for gardeners seeking a flexible, all-in-one yard tool with decent battery life, but it may require effort for larger jobs.”
Greenworks 60V 16 in Cordless String Trimmer with 2.5 Ah Battery
Compared with the Black+Decker 40V model, the Greenworks 60V trimmer offers significantly more power, with a brushless motor running at 6000 RPM—ideal for thick weeds and overgrowth. Its 16-inch cutting width boosts efficiency, especially over larger areas, and the quick spin-to-load head minimizes downtime. However, the 45-minute recharge time for its 2.5 Ah battery is a notable drawback when tackling extensive jobs, and it’s limited to Greenworks’ ecosystem, which could restrict future expansion. At 11.2 lbs, it’s on the heavier side but balanced enough for comfort. This model makes the most sense for users with sizable yards who need serious power and are already within the Greenworks battery system.
Pros:- Powerful brushless motor with 6000 RPM for tough weeds
- Wide 16-inch cutting swath improves efficiency
- Quick line reload with spin-to-load head
- Long battery life covers up to 1.5 acres per charge
Cons:- Battery recharge time of 45 minutes may interrupt workflow
- Limited compatibility within Greenworks ecosystem
Best for: Homeowners with large properties and heavy overgrowth requiring robust power.
Not ideal for: Small lawn owners or casual users who prefer lighter, easier-to-handle tools with shorter run times.
- Motor:Brushless
- Voltage:60V
- Battery:2.5 Ah
- Cutting Width:16 inches
- Weight:11.2 lbs with battery
- Warranty:4 years
Our verdict“This trimmer suits those with large, overgrown yards who need high power and long battery runtime, but it’s heavier and ecosystem-restricted.”
Black+Decker 40V MAX 13 Inch String Trimmer and Lawn Edger with Battery and Charger
This model is a solid choice for users who prioritize ease of use and quick conversions between trimming and edging. Its 40V MAX battery with a charge indicator makes it straightforward to monitor power levels, and the automatic line feed reduces interruptions. Compared to the MZK 20V 12-inch trimmer, it offers a slightly larger 13-inch cutting width, which speeds up yard work, though its battery life may be limited for larger properties. Its lightweight design at 6.4 pounds enhances maneuverability, making it suitable for beginners or those with smaller lawns. The need for an external charging base and battery life constraints are tradeoffs to consider for extensive use.
Pros:- Cordless design with easy maneuverability
- Automatic line feed simplifies operation
- Quick tool conversion between trimming and edging
- Battery charge indicator aids planning
Cons:- Battery may run out quickly on larger yards
- Lightweight build might affect durability over time
Best for: Homeowners with small to medium-sized lawns seeking an easy, reliable trimmer.
Not ideal for: Large yard owners or those with overgrown areas, as battery runtime may be insufficient.
- Power Source:Lithium Ion
- Cutting Width:13 inches
- Number of Batteries:1
- Battery Included:Yes
- Item Dimensions:40″L x 9″W
- Warranty:Limited
Our verdict“This trimmer is ideal for small to medium lawns where convenience and quick operation are priorities, but it may fall short for larger or more demanding jobs.”
Electric Cordless String Trimmer with 2.0Ah Battery & Charger, 20V Lawn Tool
This lightweight, foldable trimmer offers adjustable features and simple operation, making it suitable for those new to yard work or with smaller tasks. Its 9500 RPM motor and 12-inch cutting width are sufficient for light trimming, and the inclusion of two 2.0Ah batteries extends usability slightly. The foldable shaft and adjustable head enhance storage and comfort, but the 30-minute runtime per battery restricts continuous work on larger yards. Manual clearing under the cutter can slow progress, and the 20V battery system might lack the power for tougher overgrowth. This model is best for casual users who prioritize ease and portability over long runtime or heavy-duty performance.
Pros:- Lightweight and ergonomic design
- Foldable shaft for compact storage
- Includes two batteries for extended use
- Adjustable handle and head for comfort
Cons:- Limited runtime of about 30 minutes per battery
- Manual clearing needed under cutter can slow work
Best for: Beginners or homeowners with small yards needing lightweight, easy-to-use tools.
Not ideal for: Lawn care enthusiasts or those with extensive overgrowth, due to limited runtime and power.
- Battery:2 x 2.0Ah lithium-ion
- Voltage:20V
- No-load Speed:9500 RPM
- Cutting Width:12 inches
- Foldable Shaft:Yes
- Adjustable Head:Yes
Our verdict“This trimmer suits beginners or light-duty yard work, but its runtime and power may restrict larger projects.”
MZK 20V 12-Inch Cordless Weed Wacker with 4.0Ah Battery
Compared to the Greenworks 60V model, the MZK 20V with a 4.0Ah battery offers impressive runtime for its size, making it suitable for extended sessions on smaller yards. Its 8000 RPM motor provides sufficient power for regular trimming, and the lightweight 6.3 lbs design enhances maneuverability. The inclusion of 8 spools ensures you can keep working without frequent replacements, but the 12-inch cutting width limits efficiency on larger or overgrown areas. The battery’s incompatibility with other tools and the requirement of 2 AAA batteries for operation may be inconvenient. This trimmer is a good fit for users needing long runtime on smaller to medium yards but less suitable for big or tough overgrowth jobs due to limited power.
Pros:- Powerful 8000 RPM motor for efficient trimming
- Lightweight at 6.3 lbs for easy handling
- Includes 8 replacement spools for continuous use
- Automatic line feed for smooth operation
Cons:- Battery not compatible with other MZK tools
- Requires 2 AAA batteries for operation
Best for: Users needing long runtime and frequent spool replacements for smaller garden maintenance.
Not ideal for: Large properties or heavy overgrowth tasks where more power and wider cut are needed.
- Power Source:Battery Powered
- Cutting Width:12 inches
- Speed:8000 rpm
- Number of Batteries:2 AAA batteries required (included)
- Color:Red, Black
- Item Dimensions:17.32″L x 6.69″W
Our verdict“This trimmer offers excellent runtime and convenience for smaller yards but lacks the power for larger overgrowth or extensive trimming.”
EGO POWER+ 15″ Cordless Weed Trimmer with Battery and Charger
This EGO model stands out for its combination of power, durability, and battery compatibility. Its 15-inch cutting width and brushless motor mean it can handle most yard tasks efficiently, especially compared with smaller, less powerful options. The quick reload head simplifies line replacement, saving time during busy yard work. However, its runtime of up to 45 minutes can be limiting for larger jobs, and it requires compatible EGO 56V batteries, which could be an extra investment if you don’t already own them. Compared with the EGO Power+ 16″ model, this one offers slightly less runtime but remains highly capable for general use. The 5-year warranty and fast charging make it a reliable choice for homeowners seeking a robust, long-lasting tool.
Pros:- Long battery life of up to 45 minutes for most yard tasks
- Quick reload head for easy line replacement
- Compatible with all EGO 56V ARC Lithium batteries
- Durable brushless motor ensures longevity
Cons:- Battery life can vary depending on usage intensity
- Requires existing or purchasing compatible EGO batteries
Best for: Homeowners with medium-sized yards who want a powerful, reliable trimmer that works with existing EGO batteries.
Not ideal for: Users with very large properties or those who prefer lighter, more affordable options, as this model’s battery life may not suffice for extensive trimming sessions.
- Cutting Width:15 inches
- Battery:2.5Ah included
- Runtime:Up to 45 minutes
- Charging Time:50 minutes
- Motor Type:Brushless
- Warranty:5-year tool, 3-year battery
Our verdict“This trimmer is ideal for homeowners who need a durable, long-lasting tool with excellent battery compatibility for medium-sized yards.”
EGO Power+ 15″ Cordless Weed Trimmer with Battery and Charger
This EGO model advances usability with its patented Powerload technology, enabling rapid line replacement—an essential feature for busy homeowners. Its telescopic aluminum shaft allows users to adjust the length for personalized comfort, making it a better fit for users who value ergonomic design over fixed models. The brushless motor provides durability comparable to the B07RHVS77W, but with added convenience for prolonged use. While its 45-minute runtime matches other EGO models, the slightly heavier weight and longer charging time could be drawbacks for those with extensive yard work. Compared to the 16″ version, this trimmer emphasizes user comfort and quick setup, though it shares similar limitations on runtime for large projects. It’s a smart choice for users prioritizing ease of use and advanced features.
Pros:- Quick line loading with patented Powerload technology
- Adjustable telescopic shaft for ergonomic comfort
- Long-lasting brushless motor ensures durability
- Compatible with all EGO 56V batteries
Cons:- Weight may be heavier than simpler models
- Battery life may be limited for large-scale jobs
- Charging time could be reduced for faster turnaround
Best for: Gardeners who prioritize comfort, quick line changes, and adjustable features for frequent trimming sessions.
Not ideal for: Those with very large yards or heavy-duty needs, as runtime and power are similar to other models but comfort features might add weight.
- Cutting Width:15 inches
- Line Diameter:0.095 inch
- Battery:2.5Ah included
- Runtime:Up to 45 minutes
- Charging Time:50 minutes
- Motor Type:Brushless
Our verdict“This trimmer is perfect for homeowners seeking ease of use, adjustable comfort, and quick line replacement for regular yard maintenance.”
Craftsman V20 String Trimmer and Lawn Edger Kit with 4Ah Battery and Charger
This Craftsman V20 kit excels in offering a longer runtime of up to 63 minutes, thanks to its larger 4Ah battery, making it suitable for homeowners with extensive yard areas. Its 13-inch cutting width, while narrower than some competitors like the EGO models, still provides efficient trimming combined with edging capabilities. The adjustable handle enhances comfort, and two-speed settings help balance power with runtime. Compared with the EGO models, this kit offers a significant advantage in runtime but falls short on cutting width, which could be a drawback for larger areas. The limited number of batteries means you might need additional packs for continuous work. Overall, this option suits those who prioritize longer operation times over wider cutting paths.
Pros:- Extended runtime of up to 63 minutes per charge
- Versatile with edging and trimming functions
- Adjustable handle for user comfort
- Two-speed settings for performance control
Cons:- Limited to 13-inch cutting width, less efficient on large areas
- Battery life may vary based on conditions
- Requires compatible V20 batteries
Best for: Large-yard owners who need extended runtime and value versatility in edging and trimming tasks.
Not ideal for: Users with very large areas needing wider cuts, as the 13-inch width can slow down coverage compared to 15- or 16-inch models.
- Power Source:Battery Powered
- Cutting Width:13 inches
- Number of Batteries:1
- Battery Average Life:63 minutes
- Color:Black, Red
- Item Dimensions:31.72″ L x 7.72″ W
Our verdict“This kit is best suited for homeowners with large properties who need longer operation time and versatile trimming and edging capabilities.”
WORX 20V 12″ 2-in-1 Cordless String Trimmer & Edger, WG163
The WORX WG163 is a compact, affordable choice that combines trimming and edging in a single tool. Its 12-inch cutting diameter is narrower than the EGO 15-inch models but still suitable for smaller or moderate yard tasks. The instant line feed offers quick adjustments, and the adjustable head tilting makes it effective on slopes. Its compatibility with WORX Power Share batteries adds flexibility if you already own other WORX tools, but the 20V battery system generally provides less power and runtime than higher-voltage options. The lightweight design at 5.5 lbs makes it easier for extended use, yet battery life may limit longer sessions, especially on tougher weeds. Compared to the EGO models, this is a more economical, less powerful choice for light-duty maintenance.
Pros:- Affordable price point for casual users
- 2-in-1 design for trimming and edging
- Lightweight for comfortable extended use
- Instant line feed for quick adjustments
Cons:- Limited to 12-inch cutting width, less efficient for large areas
- Battery life may not sustain longer or tough jobs
- Lower power compared to 56V models
Best for: Homeowners on a budget who need a lightweight, versatile tool for small to medium yards and occasional use.
Not ideal for: Large properties or heavy-duty jobs, as the 12-inch width and 20V system might fall short in power and coverage.
- No-load speed:7600 rpm
- Cutting diameter:12 inches
- Weight:5.5 lbs
- Line length:10 inches
- Line diameter:0.065 inches
- Batteries included:Yes
- Battery voltage:20V
Our verdict“This trimmer suits budget-conscious homeowners with small to medium yards needing a lightweight, versatile tool for occasional use.”
EGO POWER+ 16″ Cordless Weed Trimmer with Battery and Charger
This EGO model provides a full 16-inch cutting width, making it more efficient for larger yard areas than the 15-inch options. Its patented Line IQ technology and Powerload system automate line loading, reducing setup time—an advantage over models like the B07RHVS77W that require manual line changes. The telescopic carbon fiber shaft offers a customizable, comfortable grip, especially valuable during longer sessions. With up to 60 minutes of runtime on a 4.0Ah battery, this trimmer is ideal for extensive tasks, though its higher price and reliance on EGO’s 56V ecosystem might deter budget-conscious buyers. Compared with the 15-inch models, this tool emphasizes productivity and user comfort for sizable properties, but it may be overkill for small yards.
Pros:- Automatic line loading with Powerload technology
- Longer runtime of up to 60 minutes
- Adjustable telescopic carbon fiber shaft for comfort
- Wider 16-inch cutting width speeds up large-area trimming
Cons:- Higher price point compared to smaller models
- Battery life may vary with intense use
- Requires fully charged battery for optimal performance
Best for: Homeowners with larger yards seeking a high-capacity, comfortable trimmer with minimal setup fuss.
Not ideal for: Users with small yards or limited budgets, as the advanced features and larger battery capacity come at a higher cost.
- Blade Length:16 inches
- Battery:4.0Ah included
- Charge Time:55 minutes
- Runtime:Up to 60 minutes
- Motor Type:Brushless
- Shaft:Telescopic carbon fiber
Our verdict“This trimmer is best for users with larger properties who prioritize extended runtime, ease of setup, and comfort over initial cost.”
WORX 20V 12″ Cordless String Trimmer & 360 CFM Leaf Blower Kit, WG928
This bundle from WORX stands out for offering a combined trimmer and blower, which makes it ideal for those who want a multi-tool setup without investing in separate devices. The lightweight design and easy conversion from trimmer to edger make yard work less tiring, especially compared to bulkier options like the Black+Decker 20V MAX String Trimmer. However, the battery life tends to fall short during larger jobs, limiting its effectiveness for extensive maintenance. The inclusion of two batteries and a quick charger enhances usability, but users with larger properties might find themselves recharging too often. Compared with the 20V Cordless String Trimmer with 2 Batteries, this set offers more versatility but sacrifices some runtime. This pick makes the most sense for homeowners with small to medium yards who value convenience and multi-functionality over prolonged power.
Pros:- Versatile combo with both trimmer and blower included
- Lightweight and easy to maneuver for extended use
- Includes two batteries and quick charger for continuous work
Cons:- Battery life may be insufficient for larger, more demanding jobs
- Limited power for very thick grass or dense foliage
Best for: Homeowners with small to medium-sized yards needing both trimming and blowing capabilities in one package
Not ideal for: Users with large properties or heavy-duty landscaping needs, due to limited battery runtime
- Power Source:20V Battery
- Trimmer Length:12 inches
- Leaf Blower Airflow:360 CFM
- Blower Speed:75 mph
- Weight (Trimmer):5.3 lbs
- Weight (Blower):4.4 lbs
Our verdict“This bundle suits homeowners seeking a lightweight, multi-tool solution for small to medium yard tasks, prioritizing convenience over endurance.”
BLACK+DECKER 20V MAX String Trimmer and Edger 2-in-1, Cordless Weed Wacker with Auto Spool Feed, Battery and Charger Included, 12 Inch Steel Deck, Reduced Vibration
This model from BLACK+DECKER offers a solid combination of trimming and edging with automatic spool feed, making it easier to maintain a tidy yard compared to manual bump feeds like on some cheaper models. Its lightweight construction and adjustable handle improve comfort during prolonged use, which is a step up from heavier steel deck options like the 20V Cordless String Trimmer with 2 Batteries. Nonetheless, the plastic parts and steel deck might wear out faster over time, especially if used frequently or on rough terrain. Battery life is adequate for small to medium jobs but can fall short on larger projects, and the 12-inch cutting width is somewhat narrow if you want to cover more ground quickly. Compared to the WORX bundle, it offers better ergonomics but less power for stubborn weeds. This trimmer makes the most sense for homeowners who value ease of use and quick conversions for routine yard maintenance.
Pros:- Automatic spool feed reduces manual bumping
- Lightweight and adjustable for comfort
- Includes battery and charger for quick setup
Cons:- Plastic parts may wear or break over time
- Limited power on dense, thick grass or weeds
Best for: Gardeners wanting an easy-to-handle, dual-purpose trimmer/edger for regular yard upkeep
Not ideal for: Those with large properties or heavy overgrowth, as its battery capacity and durability may not suffice
- Power:20V MAX
- Cutting Width:12 inches
- Features:Auto spool feed, lightweight, adjustable handle
- Battery:1 x 2.0 Ah lithium-ion
- Warranty:2 years
- Weight:Lightweight
Our verdict“This trimmer and edger combo is perfect for casual users prioritizing ease, comfort, and quick adjustments for routine tasks, not heavy-duty use.”
20V Cordless String Trimmer with 2 Batteries and Charger
This trimmer is designed for those who need a straightforward, space-saving tool for smaller yards. Its foldable shaft allows for compact storage, making it ideal for users with limited storage space or who frequently need to transport their equipment. The adjustable head and handle provide customization for comfortable use, while the automatic line feed reduces manual bumping. Compared with the WORX kit, it offers less in terms of bundled accessories but excels in portability. The main tradeoff is its limited runtime—up to 30 minutes per battery—which makes it less suitable for larger projects or dense grass. The inclusion of two batteries helps extend work sessions but still limits continuous operation, especially if tackling stubborn or extensive growth. This model suits casual homeowners with small properties who prioritize storage and ease of use over long power runs.
Pros:- Foldable shaft for easy storage
- Adjustable head and handle for versatility
- Includes two batteries for extended use
Cons:- Limited runtime per battery, not suited for large jobs
- Charging time unspecified, may cause delays for continuous work
Best for: Homeowners with small yards or tight storage space needing quick, portable trimming solutions
Not ideal for: Property owners with extensive landscaping or heavy-duty grass, due to limited runtime and power
- Battery:2 x 2.0Ah
- Motor Speed:9,500 RPM
- Cutting Width:12 inches
- Features:Foldable shaft, adjustable head, automatic line feed
- Runtime:Up to 30 minutes
- Weight:Compact and lightweight
Our verdict“Ideal for small yard maintenance where space-saving and portability are priorities, but not for large-scale trimming tasks.”

How We Picked
This roundup ranks products based on a combination of performance, battery capacity, usability, and value. We prioritized models with reliable battery life suitable for typical yard sizes, and those that balance power with manageable weight. Build quality and user-friendly features like adjustable shafts and auto-feed mechanisms also influenced placement. Our evaluation avoids overly expensive premium options unless they clearly offer superior value or durability, focusing instead on versatility for a broad range of users. The ranking reflects which trimmers provide the best overall performance for their price point and intended use case.Factors to Consider When Choosing String Trimmers Battery
Choosing the right string trimmer battery involves more than just voltage. You should consider runtime, compatibility, weight, and power to match your yard’s size and your physical comfort. A misstep here can lead to frustration or the need for multiple batteries, increasing costs. Understanding these factors helps ensure you pick a model that not only meets your immediate needs but also offers good value over time.Battery Voltage and Capacity
Higher voltage batteries, like 60V, generally deliver more power and longer runtimes, making them suitable for larger yards or tougher weeds. Capacity, measured in amp-hours (Ah), directly impacts how long your trimmer can run between charges. A larger Ah rating provides extended use but can add weight, which might cause fatigue during extended trimming sessions. Striking a balance between voltage, capacity, and weight is essential for optimal performance and comfort.
Battery Compatibility and System Ecosystems
Many brands offer rechargeable systems that are compatible across multiple tools, which can save money if you already own equipment from the same brand. However, sticking to a single brand’s ecosystem often ensures better battery performance and longevity. Mixing batteries from different brands usually isn’t recommended, as compatibility and charging speeds may vary. Consider your existing tools and future upgrade plans before choosing a system.
Weight and Ergonomics
Battery size and weight influence how comfortable a trimmer is to handle for prolonged periods. Lighter models are easier for users with limited strength or for detailed trimming along edges. Heavier-duty models with larger batteries tend to be more balanced with features like adjustable shafts, but they can cause fatigue if used extensively. Test the weight if possible, or read reviews focused on ergonomic design to find a comfortable fit.
Power and Cutting Width
Wider cutting paths can reduce trimming time, especially on larger properties, but they often come with increased weight and cost. Power also affects how well the trimmer handles thick weeds or tough grass; higher power usually correlates with more aggressive cutting. Match your yard size and typical task difficulty with the trimmer’s power and width for the best results.
Runtime and Charging Speed
Battery runtime is critical if you have extensive trimming needs, and it depends heavily on the battery’s Ah rating and the trimmer’s power draw. Some models feature dual batteries or larger capacity packs for extended use, but this increases initial cost. Fast-charging features minimize downtime; look for models that can recharge quickly or allow for quick swap-outs if you need continuous operation.
Frequently Asked Questions
How long does a typical battery last on a string trimmer?
Battery life varies based on capacity and the power demands of the trimmer. Most mid-range batteries deliver between 20 to 45 minutes of continuous use, which is sufficient for small to medium yards. Larger batteries or dual-battery setups can extend runtime to over an hour, but at a higher cost. Always consider your yard size and trimming frequency when evaluating battery life to avoid running out of power mid-task.
Can I use a different brand’s battery on my string trimmer?
Most batteries are proprietary, meaning they are designed to work with specific brands and models. Using a different brand’s battery often results in compatibility issues, reduced performance, or even damage to the tool. If you want flexibility, consider a system from a brand that offers interchangeable batteries across multiple tools, but always verify compatibility before purchasing or swapping batteries.
Is a higher voltage battery always better?
Higher voltage batteries generally provide more power and longer runtime, which is beneficial for demanding tasks or larger yards. However, they also tend to be heavier, which can cause fatigue during extended use. For smaller yards or lighter trimming, a lower voltage battery might be more manageable and still provide adequate performance. Think about your typical yard size and comfort level before opting for the highest voltage system available.
How important is battery capacity versus weight?
Battery capacity in Ah determines how long your trimmer can operate before needing a recharge, but larger capacities add weight, which can impact handling and comfort. If you have a small yard or prefer a lightweight tool, a lower-capacity battery may suffice. Conversely, for larger properties or frequent trimming, investing in a higher-capacity battery can save time, even if it’s slightly heavier to handle.
Should I prioritize a brushless motor in my string trimmer?
Brushless motors are generally more efficient, durable, and quieter than brushed motors. They also tend to deliver more consistent power and better battery life, making them a worthwhile upgrade for serious gardeners or those who use their trimmer frequently. While they might come at a slightly higher initial cost, the improved performance and longevity often justify the investment.
Conclusion
For general yard work and ease of use, the Black+Decker 40V MAX 13-inch String Trimmer offers a reliable, budget-friendly choice. If you own other tools within the same ecosystem or need longer runtimes, the Greenworks 60V 16-inch Trimmer stands out as the best overall option. For those seeking a premium experience with extended battery life and robust power, the EGO POWER+ 15-inch Trimmer is the top pick. Beginners or those with small yards will benefit from lighter, less powerful models, while larger properties demand higher voltage and capacity. Choose based on your yard size, frequency of use, and budget for the best results.Fall Picks
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