1. Important Safety Instructions
Read all safety warnings and instructions carefully before operating this product. Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury. Keep this manual for future reference.
General Safety Warnings
- Work Area Safety: Keep the work area clean and well-lit. Cluttered or dark areas invite accidents. Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust.
- Electrical Safety: Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges, and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
- Personal Safety: Always wear eye protection and sturdy footwear. Use hearing protection when operating the trimmer for extended periods. Do not overreach; maintain proper footing and balance at all times.
- Tool Use and Care: Do not force the power tool. Use the correct power tool for your application. It will do the job better and safer at the rate for which it was designed.
- Battery Tool Use and Care: Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack.
2. Product Overview
The Leisch Life 10-Inch 20V Cordless String Trimmer is designed for efficient grass trimming and edging. It features a lightweight design, adjustable components, and a powerful 20V battery system.

Image: The Leisch Life 10-Inch 20V Cordless String Trimmer, showcasing its main components including the motor head, shaft, and handle.
3. Setup and Assembly
This section details the steps required to assemble your Leisch Life Cordless String Trimmer and prepare it for first use.
3.1 Unpacking and Component Identification
Carefully remove all components from the packaging. Verify that all parts are present before proceeding with assembly.

Image: Labeled diagram of the Leisch Life Cordless String Trimmer, highlighting key parts such as the lock-off safety switch, adjustable handle, edging guide, foldable poles, and half-automatic feed spool.
3.2 Attaching the Safety Guard
- Align the safety guard with the mounting points on the trimmer head.
- Secure the guard using the provided screws. Ensure it is firmly attached to prevent debris from splashing during operation.
3.3 Assembling the Handle and Adjusting Height
- Attach the auxiliary handle to the main shaft.
- Adjust the handle to a comfortable position for your height and grip.
- Extend the telescoping shaft to your desired operating length. Secure it by twisting the locking collar.
Video: Demonstration of how the trimmer pole extends and contracts, showing the adjustment mechanism for user comfort.
3.4 Charging the Battery
The trimmer is powered by a 20V Li-Ion battery. Ensure the battery is fully charged before first use.
- Insert the battery into the charger.
- Plug the charger into a standard electrical outlet.
- The LED indicator on the charger will show the charging status. A full charge typically takes approximately 1 hour.
- Once charged, remove the battery from the charger.

Image: The 20V Li-Ion battery being charged by the fast charger, with indicator lights visible.
3.5 Installing the Battery
- Align the battery with the battery slot on the trimmer.
- Slide the battery into place until it clicks securely.
Video: Overview of the Leisch Life Cordless String Trimmer, including battery installation and general operation.
4. Operating Instructions
Learn how to effectively operate your cordless string trimmer for various landscaping tasks.
4.1 Starting and Stopping the Trimmer
- To start, press the safety lock-off button and then squeeze the trigger switch.
- To stop, release the trigger switch.
4.2 Trimming Operation
Hold the trimmer firmly with both hands. Swing the trimmer from side to side, keeping the cutting line parallel to the ground. The 10-inch cutting diameter allows for efficient coverage.

Image: The Leisch Life string trimmer actively cutting grass, illustrating its 10-inch cutting diameter for effective trimming.
4.3 2-in-1 Trimmer to Edger Conversion
The trimmer can be easily converted into an edger for precise lawn edges.
- Ensure the trimmer is turned off and the battery is removed.
- Rotate the trimmer head 90 degrees to position the cutting line vertically for edging.
- Use the edging guide to maintain a consistent distance from the edge.

Image: A sequence showing the Leisch Life string trimmer transitioning from horizontal trimming to vertical edging mode.
4.4 Adjustments for Optimal Use
Customize your trimmer for comfort and efficiency:
- 180-Degree Handle Rotation: Adjust the auxiliary handle for various working angles and improved control.
- Length Adjustment: Extend or retract the shaft to match your height, reducing strain.
- Angle Adjustment: The trimmer head can be adjusted to different angles for trimming in tight spaces or under obstacles.

Image: A composite image illustrating the 180-degree handle rotation, telescoping length adjustment, LED power indicator, and angle adjustment features of the trimmer.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your string trimmer.
5.1 Cleaning
- Always disconnect the battery before cleaning.
- Wipe down the exterior of the trimmer with a damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Remove any grass clippings or debris from the cutting head and safety guard.
5.2 Line Replacement
The trimmer uses a half-automatic feed spool. When the cutting line wears down, it will automatically feed more line when the trimmer is tapped on the ground during operation. If the line needs manual replacement:
- Ensure the trimmer is off and the battery is removed.
- Refer to the spool housing for instructions on how to open it and replace the cutting line. Use only the recommended line type and diameter.
5.3 Storage
- Store the trimmer in a dry, secure location out of reach of children.
- Remove the battery from the trimmer before storing for extended periods.
- Store the battery in a cool, dry place, away from direct sunlight and extreme temperatures.
6. Troubleshooting
This section addresses common issues you might encounter with your Leisch Life Cordless String Trimmer.
| Problem | Possible Cause | Solution |
|---|---|---|
| Trimmer does not start | Battery not charged or improperly installed; Safety lock-off not engaged; Trigger switch not pressed. | Ensure battery is fully charged and correctly inserted. Press safety lock-off button before squeezing trigger. |
| Cutting line does not feed | Line is tangled or empty; Spool cap is loose. | Tap trimmer head on ground during operation. If still no feed, remove battery, open spool housing, and untangle or replace line. Ensure spool cap is secure. |
| Reduced cutting performance | Dull or short cutting line; Heavy or wet grass. | Advance cutting line. Avoid cutting excessively thick or wet vegetation. |
| Excessive vibration | Damaged cutting line or spool; Loose components. | Inspect cutting line and spool for damage and replace if necessary. Check all fasteners for tightness. |
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Leisch Life |
| Model | B0BBM4TZ8F |
| Power Source | Battery Powered |
| Battery Type | 20V Lithium Ion (2.0Ah included) |
| Item Weight | 5.1 Pounds |
| Cutting Width | 10 Inches |
| Product Dimensions | 10"L x 5"W |
| Speed | 8000 RPM (no-load) |
| Required Assembly | Yes |
8. Warranty and Support
8.1 Warranty Information
Leisch Life provides a 12-month warranty for this product. This warranty covers defects in materials and workmanship under normal use. It does not cover damage resulting from misuse, abuse, accidents, or unauthorized repairs.
8.2 Customer Support
If you have any questions, require assistance with assembly, operation, or encounter any issues not covered in the troubleshooting section, please contact Leisch Life customer support. Refer to your purchase documentation or the official Leisch Life website for current contact information.
For more information and to explore other Leisch Life products, visit the Leisch Life Store.