4.0 Ah or 5.0 Ah String Trimmers? Compared by Specs
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You are comparing the 40 ah vs 50 ah string trimmer options from EGO and CRAFTSMAN. Both tools use brushless motors and push-button line feed systems. The main difference lies in their voltage platforms and battery capacities. EGO offers a 56V system with a 4.0Ah battery, while CRAFTSMAN provides a 20V system with a larger 5.0Ah battery. This guide breaks down how these specs affect your yard work.
Key differences
| Aspect | EGO Power+ 56V 16-Inch String Trimmer and Edger | CRAFTSMAN V20 Brushless 13-Inch String Trimmer |
|---|---|---|
| Voltage | 56V | 20V |
| Battery Capacity | 4.0Ah | 5.0Ah |
| Cutting Swath | 16 in. | 11 to 13 in |
| Shaft Type | Carbon Fiber | not listed |
| Runtime (Trimmer) | Up to 45 minutes | Up to 75 minutes |
Which one should you choose?
Choose EGO Power+ 56V 16-Inch String Trimmer and Edger if
- You need a wider 16-inch cutting path for faster mowing.
- You prefer a lighter carbon fiber shaft for reduced fatigue.
- You already own 56V EGO batteries for tool compatibility.
Choose CRAFTSMAN V20 Brushless 13-Inch String Trimmer if
- You want the longest possible runtime of up to 75 minutes.
- You are on a budget and prefer a 20V platform.
- You need an adjustable cutting width between 11 and 13 inches.
Verdict: Choose the EGO model if you prioritize cutting width and a durable carbon fiber shaft. Pick the CRAFTSMAN option if extended runtime and an adjustable swath size are your top priorities. Both are cordless and brushless, so your choice depends on your specific yard size and voltage preferences.
Comparing 4.0 Ah and 5.0 Ah Trimmers
Voltage Platform
Product A uses a 56V system, while Product B operates on a 20V platform. Higher voltage generally allows for more power delivery to the brushless motor. EGO’s 56V architecture is designed for heavier-duty tasks, whereas CRAFTSMAN’s 20V system targets lighter yard work. This difference defines the entire ecosystem of batteries and tools you can use. You must choose between the higher-output 56V standard or the more common 20V option.
Battery Capacity
The comparison focuses on the included battery sizes. Product A comes with a 4.0Ah battery, while Product B includes a 5.0Ah battery. A higher amp-hour rating typically extends runtime between charges. Product B’s larger capacity suggests longer continuous operation for the same task. However, runtime also depends on the motor’s efficiency and the voltage. You should consider how long you plan to mow before needing to swap or recharge the pack.
Cutting Width
Product A features a 16-inch cutting swath, which covers more ground per pass. Product B offers an adjustable cutting width ranging from 11 to 13 inches. The wider deck on the EGO model helps you clear larger areas faster. The narrower, adjustable deck on the CRAFTSMAN allows for better maneuverability around obstacles and tight spaces. Your choice depends on whether you prioritize speed over precision in tight spots.
Line Feed System
Both tools utilize a push-button line feed mechanism. Product A calls this POWERLOAD technology, allowing you to feed line quickly by pushing a button. Product B also features a push-button feed system designed to control line advancement. This means you do not need to bump the head against the ground to extend the line. Both systems offer convenience and reduce downtime during trimming sessions.
Build Material
Product A is constructed with carbon fiber shafts, which are noted for being lightweight and durable. Product B does not specify its shaft material in the provided data, but it highlights a compact design. Carbon fiber typically offers a high strength-to-weight ratio, reducing user fatigue. The unspecified material in Product B may still be durable, but the carbon fiber construction in Product A is a distinct advantage for long-term use.
Choose based on power needs
Users needing heavy-duty power for large yards
The EGO unit runs on a 56V platform. This higher voltage system delivers more power to the brushless motor. It includes a 4.0Ah battery. The 16-inch cutting swath handles thicker vegetation better. The carbon fiber shaft reduces weight while maintaining durability. You get up to 45 minutes of runtime. This makes it suitable for tougher trimming jobs.
Budget-conscious buyers wanting extended runtime on a budget
The CRAFTSMAN model uses a 20V system with a 5.0Ah battery. The larger capacity provides up to 75 minutes of runtime. The brushless motor offers efficiency and performance. The adjustable 11-to-13-inch swath adapts to different tasks. The push-button feed system is convenient. This kit is lighter and more maneuverable. It is ideal for smaller lawns where long sessions are common.
Those wanting a versatile combo kit with edger
This EGO kit includes a 16-inch string trimmer and an 8-inch edger. The edger features depth adjustment and a guide wheel. You get a digital two-speed selector on the power head. The variable speed trigger adds control. The carbon fiber construction is lightweight. The IPX4 rating offers weather resistance. This versatility makes it a complete solution for yard maintenance.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | EGO Power+ 56V 16-Inch String Trimmer and Edger | Small to medium yards needing trim and edge | Check price of EGO Power+ 56V 16-Inch String Trimmer and Edger on Amazon |
| 2 | CRAFTSMAN V20 Brushless 13-Inch String Trimmer | Lightweight trimming with manual feed | Check price of CRAFTSMAN V20 Brushless 13-Inch String Trimmer on Amazon |
The products compared
EGO Power+ 56V 16-Inch String Trimmer and Edger
Best for: Small to medium yards needing trim and edge
- Battery Capacity
- 4.0 Ah (what this guide is about)
- Voltage
- 56V
- Cutting Swath
- 16 in.
- Motor Type
- brushless
- Shaft Type
- carbon fiber
- Line Feed System
- POWERLOAD
View on Amazon: EGO Power+ 56V 16-Inch String Trimmer and Edger Affiliate link
This EGO combo kit includes a 16-inch string trimmer and an 8-inch edger powered by a 56V 4.0Ah battery. The carbon fiber shafts keep the unit lightweight, while the brushless motor ensures efficient runtime. You get up to 45 minutes of trimming or 75 minutes of edging on low speed. The POWERLOAD system simplifies line feeding, and the edger features depth adjustment for precise cuts.
Pros
- 16-inch cutting swath for efficient trimming
- POWERLOAD button-fed line system
- Up to 75 minutes runtime for edging
- Lifetime warranty on carbon fiber shafts
Cons
- Included 4.0Ah battery offers less runtime than 5.0Ah options
- Heavier and bulkier than single-head trimmers
- Edging depth limited to 3 inches
Good fit if
- You need both trimming and edging in one kit
- You prefer lightweight carbon fiber shafts
- You want a simple button-fed line system
Skip if
- You require maximum runtime for large yards
- You only need a string trimmer
- You want a deeper edging cut than 3 inches
Verdict: EGO 56V 4.0Ah Carbon Fiber Combo is ideal for homeowners who want a versatile two-in-one tool with lightweight construction and easy line refilling, provided their yard size fits within the 4.0Ah battery's runtime limits.
CRAFTSMAN V20 Brushless 13-Inch String Trimmer
Best for: Lightweight trimming with manual feed
- Battery Capacity
- 5.0 Ah (what this guide is about)
- Voltage
- 20V
- Cutting Swath
- 11 to 13 in
- Power Source
- battery
- Motor Type
- brushless
- Line Feed System
- push-button
View on Amazon: CRAFTSMAN V20 Brushless 13-Inch String Trimmer Affiliate link
This CRAFTSMAN V20 string trimmer features a brushless motor and a 5.0 Ah battery. It offers an adjustable cutting swath from 11 to 13 inches. The push-button feed system helps control line advancement. Weighing 9.44 pounds, it includes WeatherGuard technology for moisture protection. You get extended runtime with this kit. It suits users needing a lightweight, cordless solution for lawn edging and trimming.
Pros
- Brushless motor for up to 75 minutes of runtime
- 5.0 Ah battery included for extended use
- Adjustable 11 to 13 inch cutting swath
- Push-button line feed system for control
- Lightweight design at 9.44 pounds
Cons
- Push-button feed requires manual activation
- WeatherGuard applies to tool only, not battery
- 2-year limited warranty is standard
Good fit if
- You want a brushless motor for longer runtime
- You need an adjustable cutting width
- You prefer a lightweight trimmer under 10 pounds
Skip if
- You require automatic line feed advancement
- You need all-weather protection for the battery
- You prefer a longer warranty period
Verdict: CRAFTSMAN V20 Brushless Trimmer 5.0Ah provides reliable runtime and adjustability for small to medium yards. You should choose it if you value a lightweight build and manual feed control.
Specifications side by side
| Spec | EGO Power+ 56V 16-Inch String Trimmer and Edger | CRAFTSMAN V20 Brushless 13-Inch String Trimmer |
|---|---|---|
| Voltage | 56V | 20V |
| Cutting Swath | 16 in. | 11 to 13 in |
| Power Source | not stated | battery |
| Motor Type | brushless | brushless |
| Shaft Type | carbon fiber | not stated |
| Line Feed System | POWERLOAD | push-button |
| Battery Capacity | 4.0Ah | 5.0Ah |
| Cutting Width | 16-Inch | 13-Inch |
| Application | not stated | Lawn |
| Included Battery | not stated | Battery and Charger Included |
| Dimensions | 40.9 × 16.9 × 5 inches | 6.2 × 10.4 × 5 inches |
| Weight | not stated | 9.44 pounds |
| Size | Trimmer + Edger + Power Head w/4.0Ah Battery | 13 inches |
| Color | black | Red, Black |
| Model | MHC1603 | CMCST930P1 |
Frequently asked questions
Does a 5.0 Ah battery last longer than a 4.0 Ah battery?
Yes. The 5.0 Ah capacity holds more energy than the 4.0 Ah option. This typically extends runtime between charges. The CRAFTSMAN model uses a 5.0 Ah battery for longer operation. The EGO unit relies on a 4.0 Ah battery. You should choose the larger capacity if you need extended use without recharging.
Is a 16-inch cutting width better than a 13-inch width?
A 16-inch width covers more area per pass. The EGO trimmer offers this wider cut for faster trimming. The CRAFTSMAN model provides a 13-inch width. This narrower cut may offer better maneuverability in tight spaces. Choose the wider option for speed and the narrower one for precision in confined areas.
Which tool is lighter for extended use?
The CRAFTSMAN trimmer weighs 9.44 pounds. This is a specific weight provided in its specs. The EGO unit includes a power head and trimmer. Its total weight is not listed in the provided data. You should consider the CRAFTSMAN if a lighter, single-unit tool is your priority for handheld operation.
Do these string trimmers include a battery and charger?
The CRAFTSMAN model includes both a battery and a charger. This is stated in its attributes. The EGO product is listed as a combo with a 4.0Ah battery. It implies the battery is included. You should verify the packaging contents for the EGO unit to confirm the charger is also present in the box.
Can I use the EGO battery with other tools?
The EGO unit uses a 56V platform. This battery is part of a larger ecosystem. The data lists it as a power head combo. This suggests compatibility with other 56V EGO tools. The CRAFTSMAN uses a 20V V20 battery. This is a different platform and is not compatible with the EGO system.
What is the difference in motor type between these trimmers?
Both tools use brushless motors. The CRAFTSMAN explicitly lists a brushless motor type. The EGO description also notes a brushless motor. Brushless motors offer longer life and better efficiency. This feature is common to both the 4.0 Ah and 5.0 Ah options in this comparison.
Which trimmer is better for edging tasks?
The EGO model is described as a trimmer and edger. It includes a power head that supports multiple attachments. The CRAFTSMAN is listed strictly as a string trimmer. If you need to switch between trimming and edging, the EGO combo provides that versatility without buying a separate tool.

