EGO Power+ 15" Cordless Weed Trimmer vs EGO Power+ STX3800 15-Inch 56-Volt Lithium-ion: Spec Comparison
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This ego power 15 cordless weed trimmer vs stx3800 15 inch 56 volt lithium comparison highlights two distinct tools from the same brand. Both offer a 15-inch cutting swath and 56-volt brushless motors. The main difference lies in their construction and intended use. One model prioritizes lightweight maneuverability for residential tasks. The other emphasizes durability and commercial-grade features. You need to decide which build style fits your yard work.
Key differences
| Aspect | EGO Power+ 15-Inch Cordless String Trimmer | EGO Power+ 15-Inch Carbon Fiber String Trimmer |
|---|---|---|
| Shaft Type | Standard shaft | Carbon fiber shaft |
| Weight | 7.4 pounds | 12.1 pounds |
| Line Feed System | Rapid Reload | Bump feed |
| Runtime | Up to 45 minutes | Not listed |
| Warranty | 5-year tool, 3-year battery | Lifetime warranty on shaft |
Which one should you choose?
Choose EGO Power+ 15-Inch Cordless String Trimmer if
- You want a lighter tool that is easier to handle for extended periods.
- You prefer a rapid reload line feed system for quick line changes.
- You need a standard battery warranty for peace of mind.
Choose EGO Power+ 15-Inch Carbon Fiber String Trimmer if
- You require a carbon fiber shaft for increased durability and reduced weight relative to strength.
- You are looking for a commercial-grade build with weather-resistant construction.
- You want a lifetime warranty on the shaft itself.
Verdict: Choose the ST1502SA if you value a lighter weight and a convenient rapid reload head for typical residential use. Select the STX3800 if you need a commercial-grade carbon fiber shaft and bump feed system for tougher conditions. Both deliver 56-volt power, but their build quality targets different user needs.
EGO ST1502SA vs STX3800 Comparison
Shaft Construction
The EGO Power+ 15-Inch Cordless String Trimmer (ST1502SA) uses a standard shaft construction, while the STX3800 features a carbon fiber shaft. Carbon fiber is significantly lighter and more rigid than traditional materials, which reduces vibration and fatigue during extended use. The STX3800 also includes a lifetime warranty specifically for this shaft, highlighting its durability. The ST1502SA does not list a specific shaft material warranty beyond the general tool warranty. For professionals or users prioritizing weight reduction and long-term structural integrity, the carbon fiber build of the STX3800 offers a clear advantage in material quality.
Weight
Weight is a critical factor for maneuverability and user comfort. The ST1502SA weighs 7.4 pounds, making it considerably lighter than the STX3800, which weighs 12.1 pounds. This nearly five-pound difference can impact your back and arms during long trimming sessions. The lighter ST1502SA is easier to lift and angle for overhead or awkward cuts. The heavier STX3800 may feel more stable but requires more effort to control. If you are comparing these for residential use where portability matters, the ST1502SA is the more practical choice due to its manageable weight.
Line Feed System
The way you reload or feed line affects your workflow. The ST1502SA is equipped with a Rapid Reload head, which allows you to quickly and easily load new cutting line without removing the head. This is convenient for restocking your trimmer at the start of a job. The STX3800 uses a bump feed head, which requires you to tap the head against the ground to advance the line during use. Both use 0.095-inch line diameter. The Rapid Reload system on the ST1502SA offers a distinct advantage for users who prefer quick line changes over the continuous bump-feeding method.
Runtime and Battery
The ST1502SA comes with a 2.5Ah battery, providing up to 45 minutes of runtime on a single charge. It also charges in 50 minutes. The STX3800 data does not specify a battery capacity or runtime, though it is compatible with the Commercial Series Backpack Battery (BAX1501). For standard handheld use, the included 2.5Ah battery in the ST1502SA gives you a clear expectation of 45 minutes of operation. The STX3800 is designed for commercial backpack systems, which typically offer longer runtime, but without specific data, the ST1502SA provides a more defined performance metric for typical users.
Motor Speed
The STX3800 specifies a motor speed of 5700 RPM, indicating a high-performance brushless motor designed for cutting power. The ST1502SA also features a high-efficiency brushless motor but does not list a specific RPM in the provided data. Both motors offer low vibration and increased reliability. The stated 5700 RPM on the STX3800 suggests it is tuned for heavier-duty cutting tasks, aligning with its commercial series designation. Without an RPM figure for the ST1502SA, the STX3800 has the edge in terms of documented cutting speed and power output.
Which EGO String Trimmer Fits Your Needs
Light-duty homeowners wanting quick line loading
The ST1502SA features a Rapid Reload head for fast line changes without cutting the string. It includes a 2.5Ah battery that charges in 50 minutes and offers up to 45 minutes of runtime. The variable speed control lets you match power to the task, while the brushless motor ensures low vibration and reliability for typical yard cleanup jobs.
Users prioritizing lightweight handling and durability
The STX3800 uses a carbon fiber shaft that significantly reduces weight and vibration compared to standard shafts. This construction minimizes fatigue during extended use. The model also carries a lifetime warranty on the shaft and features weather-resistant construction, making it suitable for harsh conditions where long-term durability and comfortable handling are essential priorities for the operator.
Commercial operators needing heavy-duty performance
The STX3800 is part of the Commercial Series and supports the Commercial Series Backpack Battery and Link system. It delivers 5700 RPM for aggressive cutting power. The bump feed head allows for continuous line extension without stopping. Its robust design and compatibility with high-capacity backpack power sources make it ideal for professional landscaping and frequent, demanding work environments.
The products compared
EGO Power+ 15-Inch Cordless String Trimmer
Best for: Small yard cleanup with quick turnaround
- Voltage
- 56V
- Cutting Swath
- 15-inch
- Power Source
- battery
- Motor Type
- brushless
- Line Feed System
- Rapid Reload
- Battery Capacity
- 2.5Ah
View on Amazon: EGO Power+ 15-Inch Cordless String Trimmer Affiliate link
This EGO Power+ ST1502SA is a 56-volt cordless weed trimmer designed for yard cleanup. It features a 15-inch cutting swath and a high-efficiency brushless motor for reliability. The included 2.5Ah battery provides up to 45 minutes of runtime and charges in 50 minutes. You get variable speed control and a Rapid Reload head for easy line changes. It weighs 7.4 pounds and includes a 5-year tool warranty.
Pros
- 15-inch cutting swath with 0.095-inch line
- Up to 45 minutes of runtime on 2.5Ah battery
- Fast 50-minute charging time
- High-efficiency brushless motor for low vibration
- Rapid Reload head for quick line loading
Cons
- 2.5Ah battery capacity limits extended heavy-duty use
- 7.4-pound weight may cause fatigue during long sessions
- No telescopic shaft included in this specific configuration
Good fit if
- You need a lightweight tool for small to medium yards
- You want fast charging between uses
- You prefer variable speed control for different tasks
Skip if
- You require a telescopic shaft for height adjustment
- You need more than 45 minutes of continuous runtime
- You are managing large commercial properties
Verdict: EGO 15" Cordless Weed Trimmer suits homeowners with small to medium yards who value quick charging and manageable weight. It is not ideal for large properties requiring extended runtime or height-adjustable shafts.
EGO Power+ 15-Inch Carbon Fiber String Trimmer
Best for: Commercial users needing backpack battery compatibility
- Voltage
- 56-Volt
- Cutting Swath
- 15”
- Power Source
- battery
- Motor Type
- brushless
- Shaft Type
- carbon fiber
- Line Feed System
- bump feed
View on Amazon: EGO Power+ 15-Inch Carbon Fiber String Trimmer Affiliate link
The EGO STX3800 is a 56-volt commercial string trimmer with a 15-inch cutting swath. It features a high-efficiency brushless motor reaching 5700 RPM and a durable carbon fiber shaft. The unit weighs 12.1 pounds and uses a bump feed head with .095-inch line. This tool suits users needing weather-resistant construction and compatibility with commercial backpack battery systems for extended runtime.
Pros
- 56-volt brushless motor delivers 5700 RPM
- Carbon fiber shaft with lifetime warranty
- 15-inch cutting swath for efficient clearing
- Weather-resistant construction for outdoor durability
- Compatible with commercial backpack battery systems
Cons
- Heavier build at 12.1 pounds
- Requires separate battery and charger purchase
- Limited to bump feed line system
Good fit if
- You need commercial-grade durability for daily use
- You want to use backpack batteries for longer runtime
- You prefer a lightweight carbon fiber shaft
Skip if
- You already own a compatible EGO battery
- You prefer a lighter tool under 10 pounds
- You need automatic line feed for convenience
Verdict: The EGO STX3800 15-Inch Commercial Trimmer fits professionals who need a robust, weather-resistant tool with a lifetime warranty on the shaft. It is ideal for those who already have or plan to use commercial backpack batteries for extended work sessions.
Specifications side by side
| Spec | EGO Power+ 15-Inch Cordless String Trimmer | EGO Power+ 15-Inch Carbon Fiber String Trimmer |
|---|---|---|
| Voltage | 56V | 56-Volt |
| Cutting Swath | 15-inch | 15” |
| Power Source | battery | battery |
| Motor Type | brushless | brushless |
| Shaft Type | not stated | carbon fiber |
| Line Feed System | Rapid Reload | bump feed |
| Battery Capacity | 2.5Ah | not stated |
| Cutting Width | 15-Inch | 15-Inch |
| Dimensions | 71.7 × 12.6 × 5 inches | 71.8 × 7.87 × 4.33 inches |
| Weight | 7.4 pounds | 12.1 pounds |
| Size | 15" | not stated |
| Color | Black | Black |
| Model | ST1502SA | STX3800 |
Frequently asked questions
Which EGO trimmer is lighter to carry?
The standard ST1502SA model is the lighter option at 7.4 pounds. The commercial STX3800 weighs 12.1 pounds due to its heavier-duty carbon fiber shaft and construction. You should choose the lighter model if you plan to hold the tool for extended periods or have mobility concerns.
Does the STX3800 include a battery?
The product data does not specify the battery capacity for the STX3800. The standard ST1502SA includes a 2.5 Ah battery. You may need to check the package contents for the STX3800 to confirm if it comes with a battery or if you must purchase one separately.
Are both trimmers 15 inches wide?
Yes, both the ST1502SA and the STX3800 feature a 15-inch cutting width. This consistent width means they clear the same amount of vegetation per pass. The difference lies in how they achieve that cut, with the STX3800 using a more robust carbon fiber shaft.
Which model is better for small yards?
The ST1502SA is better for small yards due to its manageable 7.4-pound weight and included 2.5 Ah battery. It offers quick charging and turnaround times. The heavier STX3800 is designed for commercial use and may be overkill for typical residential cleanup tasks.
What is the difference in shaft material?
The ST1502SA uses a standard shaft construction. The STX3800 features a carbon fiber shaft. Carbon fiber is more rigid and reduces vibration, which helps reduce user fatigue during long work sessions. This makes the STX3800 more suitable for professional or frequent use.
Can the STX3800 be used with backpack batteries?
The STX3800 is designed for commercial users and supports backpack battery compatibility. This allows for extended runtime beyond what a handheld battery provides. The standard ST1502SA is geared toward quick jobs with its included 2.5 Ah battery and rapid recharge capabilities.

