Product Overview
The EGO POWER+ 21" Select Cut Self-Propelled Mower is engineered to deliver exceptional performance, surpassing the power typically found in gas-powered alternatives. This advanced electric lawn mower is designed for efficiency and ease of use, making lawn care a more convenient experience. It features a versatile multi-blade cutting system and intuitive self-propelled technology for optimal control.

Figure 1: EGO POWER+ 21-inch Self-Propelled Electric Lawn Mower, including the 56V 7.5Ah ARC Lithium battery and rapid charger.
Key Features
- Select Cut Multi-Blade System: Equipped with three interchangeable lower blades (Mulching, High Lift Bagging, Extended Runtime) for superior cutting performance and versatility across different grass types and desired outcomes.
- Touch Drive Self-Propelled Technology: Provides complete control over the self-propelled system with pressure-engaged activation and a variable speed dial (0.9 MPH – 3.1 MPH) conveniently located at your fingertips.
- Long-Lasting Battery: Includes a 56V 7.5Ah ARC Lithium Fuel Gauge battery, offering over 60 minutes of cutting time on a single charge.
- Rapid Charging: The included Powerplus Rapid Charger can fully charge the 7.5 Ah ARC Lithium battery in approximately 60 minutes.
- High-Efficiency Brushless Motor: Ensures powerful and consistent performance.
- 7-Position Cutting Height Adjustments: Easily adjust the cutting height from 1.5 inches to 4 inches to suit your lawn's needs.
- 3-in-1 Functionality: Supports mulching, bagging, and side discharge options for flexible grass clipping management.
- Quick and Easy Push-Button Start: Simplifies operation, allowing for immediate use.
- Bright LED Headlights: Provides illumination for mowing in low-light conditions.

Figure 2: The Select Cut Multi-Blade System allows for interchangeable blades to optimize mulching, bagging, or extended runtime.

Figure 3: Touch Drive Self-Propelled Technology provides effortless control and variable speed adjustment.

Figure 4: Enjoy up to 60 minutes of continuous mowing on a single charge with the 7.5Ah ARC Lithium battery.
Setup
Unpacking and Assembly
- Carefully remove all components from the packaging.
- Unfold the mower handle. Ensure the side rails are fully extended and click into position. The handle can be adjusted to your preferred height by releasing the quick adjust levers and re-locking them.
- Attach the grass collection bag or side discharge chute as needed for your preferred cutting method.
Battery Installation and Charging
- Open the battery compartment cover located on top of the mower.
- Insert the 56V 7.5Ah ARC Lithium battery into the compartment, ensuring it clicks securely into place.
- Close the battery compartment cover.
- For initial use or when the battery is low, connect the battery to the Powerplus Rapid Charger. A full charge typically takes 60 minutes. The battery features a fuel gauge to display the remaining power level.

Figure 5: The 56V ARC Lithium battery and rapid charger are essential for operation and quick recharging.
Operating Instructions
Starting the Mower
- Ensure the battery is fully charged and properly installed.
- Press and hold the power button on the handle.
- Pull the bail lever towards the handle to engage the blades and start the mower.
Adjusting Cutting Height
The mower offers 7-position cutting height adjustments, ranging from 1.5 inches to 4 inches. Locate the height adjustment lever on the side of the mower deck and move it to your desired setting before mowing.

Figure 6: Easily adjust the deck height to one of eight settings for optimal lawn appearance.
Using Self-Propelled Technology
Engage the Touch Drive Self-Propelled Technology by applying pressure to the handle. Adjust the variable speed using the dial located at your fingertips. The speed can be set between 0.9 MPH and 3.1 MPH, allowing you to match the mower's pace to your walking speed and terrain.
LED Headlights
The mower is equipped with bright LED headlights. To activate or deactivate the headlights, press the dedicated LED light button on the handle. This feature is useful for mowing in low-light conditions or during early morning/late evening hours.
Maintenance
Blade Care
Regularly inspect the blades for sharpness and damage. Dull blades can tear grass, leading to an unhealthy lawn. The Select Cut Multi-blade System allows for easy interchangeability of blades. Refer to the detailed instructions in the full manual for safe blade removal and installation. Always ensure the battery is removed before performing any blade maintenance.
Cleaning
After each use, disconnect the battery and clean the mower deck and wheels to prevent grass buildup. Use a damp cloth to wipe down surfaces. Avoid using high-pressure water directly on electrical components.
Storage
The EGO POWER+ mower is designed for compact storage. Fold the handle down completely to minimize its footprint. Store the mower in a dry, protected area. Remove the battery from the mower if storing for extended periods.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Mower does not start. | Battery not fully charged or improperly installed. Handle not fully extended/locked. | Ensure battery is charged and seated correctly. Fully extend and lock the handle into operating position. |
| Reduced cutting performance. | Dull or damaged blades. Grass buildup under deck. | Inspect and sharpen/replace blades. Clean the underside of the mower deck. |
| Self-propel not engaging. | Touch Drive lever not engaged correctly. Speed dial set too low. | Ensure proper pressure on the Touch Drive lever. Adjust speed dial to a higher setting. |
| Mower stops unexpectedly. | Battery overheating or low charge. Overload condition (e.g., very thick grass). | Allow battery to cool down. Recharge battery. Mow at a slower pace or raise cutting height in dense areas. |
For more detailed troubleshooting, please refer to the complete product manual or contact EGO Power+ customer support.
Specifications
- Brand: EGO Power+
- Model: LM2135SP
- Power Source: Battery Powered (56V 7.5Ah ARC Lithium)
- Material: Metal (Deck), Plastic (Housing)
- Color: Gray, Black, Green
- Item Weight: 55.3 Pounds
- Cutting Width: 21 Inches
- Cutting Height Adjustments: 7 positions (1.5" - 4")
- Operation Mode: Automatic, Self-Propelled (Touch Drive Technology)
- Adjustable Self-Propel Speed: 0.9 MPH – 3.1 MPH
- Product Dimensions: 39"D x 17"W x 66"H (Operating)
- Charge Time: 60 minutes (with recommended 7.5 Ah ARC Lithium battery and Powerplus Rapid Charger)
- UPC: 692042011511, 692042011504
Warranty & Support
The EGO POWER+ LM2135SP Electric Lawn Mower comes with a comprehensive warranty:
- Tool Warranty: 5 Years
- Battery & Charger Warranty: 3 Years
For warranty claims, technical assistance, or additional support, please visit the official EGO Power+ website or contact their customer service department. Keep your proof of purchase for warranty validation.
You can find more information and support at the EGO Power+ Store on Amazon.





