A Guide to Using the 20V Battery-Powered Grass Trimmer: Hyundai HY20CGT

Posted by Hyundai Power Products on 13th Jul 2025

By Max Letek - Hyundai Power Products

The Hyundai HY20CGT 20V Cordless Grass Trimmer is designed to simplify your gardening tasks, delivering precise results with minimal effort. This new model builds on Hyundai’s reputation for quality and reliability, offering significant advantages for both seasoned gardeners and those new to cordless tools.

How to Use the Hyundai HY20CGT 20V Cordless Grass Trimmer

The HY20CGT is engineered to simplify your gardening tasks, delivering precise results with minimal effort. This new model builds on Hyundai's reputation for quality and reliability, offering significant advantages for both seasoned gardeners and those new to cordless tools.

Getting Started: Setup and Assembly

Your HY20CGT is designed for quick and easy assembly, getting you into the garden faster.

1. Charge the Battery: Before its first use, fully charge the included 20V 2.0Ah lithium-ion battery with the supplied 2A fast charger. A full charge takes approximately 60 minutes. The charger will indicate when the battery is ready.

2. Attach the Battery: Once charged, slide the battery securely into the designated slot on the trimmer until it clicks into place.

Adjust the Handle and Shaft: Loosen the locking mechanism on the telescopic shaft to extend or retract it to a comfortable working height. Similarly, adjust the auxiliary handle to a position that feels natural and provides good balance.

3. Install the Flower Guard: The integrated flower guard simply clips into place at the front of the trimmer head. This essential feature protects delicate plants and garden features from accidental cuts.

Operating Your HY20CGT: Tips for a Perfect Finish

The HY20CGT is intuitive to use, but these tips will help you achieve the best results and ensure safe operation.

Starting and Stopping: To start the trimmer, press the safety switch (usually a button or lever) and then squeeze the main trigger. Release the trigger to stop the trimmer. Always ensure the trimmer is off and the battery removed before making any adjustments or clearing debris.

Trimming Technique: Sweep Motion: Use a gentle, sweeping motion, moving the trimmer from side to side across the area you want to trim.

Maintain Height: Avoid digging the line into the ground. Keep the trimmer head slightly above the grass for an even cut. The 30cm cutting width allows you to cover more ground efficiently.

Tackle Thick Grass Slowly: For very long or dense grass, take smaller passes to avoid bogging down the motor. The 9000 RPM motor is powerful, but gradual passes are always better for thicker vegetation.

Edging Function: Rotate the Head: The HY20CGT features an adjustable pivoting head (0-90°). Simply press the release button or lever and rotate the trimmer head 90 degrees to switch to edging mode.

Use the Edging Wheel: The built-in edging wheel provides stability and guides the trimmer along pathways, driveways, and borders, helping you achieve crisp, straight edges effortlessly.

Walk at a Steady Pace: For clean lines, walk at a consistent speed, letting the trimmer do the work.

Battery Management: The 2.0Ah battery provides up to 20 minutes of runtime. For larger gardens, consider having a spare charged battery on hand to minimize interruptions.

Lightweight Advantage: At just 1.8kg (net), the HY20CGT is incredibly easy to handle. Take advantage of its lightweight design to navigate around obstacles and trim in tight spaces without fatigue.

Operating Your HY20CGT: Tips for a Perfect Finish

Maintaining Your HY20CGT: Keeping It in Top Condition

Proper maintenance ensures your grass trimmer remains reliable and performs optimally for years to come.

Clean After Each Use: Disconnect the battery and use a dry cloth or soft brush to remove grass clippings, dirt, and debris from the trimmer head, shaft, and motor housing. Avoid using water directly on electrical components.

Inspect the Trimmer Line: Check the 1.65mm single-line feed regularly for wear and tear. If it's too short or damaged, advance more line using the bump-feed mechanism or replace the spool as needed.

Store Properly: Store your HY20CGT in a dry, covered area, ideally upright using its space-saving storage design. Remove the battery if storing for extended periods, and store the battery in a cool, dry place.

Battery Care: Recharge the battery before long-term storage and top it up every few months to prolong its lifespan (rated for 300+ charges).
Regular Checks: Periodically check all screws and fasteners to ensure they are tight. Inspect the power cord and charger for any signs of damage.

Safety First: Important Considerations

Always prioritize safety when operating any power tool.

Read the Manual: Always consult the full instruction manual supplied with your HY20CGT for detailed safety warnings and operating instructions.

Wear Protective Gear: Always wear safety glasses or goggles, long trousers, and sturdy footwear. Hearing protection is also recommended for extended use.
Clear the Area: Before starting, remove any stones, sticks, wire, or other debris from the area you intend to trim.
Keep Spectators Away: Ensure children, pets, and other people are at a safe distance (at least 15 metres/50 feet) from your working area.
Never Force the Tool: If the trimmer bogs down, reduce the load or take smaller passes. Forcing the tool can lead to damage or injury.

Don't forget your Warranty and Support:

Hyundai stands behind the quality of their products. The HY20CGT Grass Trimmer comes with a Hyundai 3-year platinum home-use warranty, providing peace of mind and protection against any potential defects. The comprehensive warranty is a testament to the reliability and durability of the trimmer.

Investing in the Hyundai HY20CGT 20V Battery-Powered Grass Trimmer is a smart choice for maintaining a beautiful lawn. Its cordless convenience, efficient trimming performance, lightweight design, and easy maintenance make it a valuable tool for any homeowner. With the versatility of the 20V battery and the support of Hyundai's warranty, you can trust this trimmer to deliver excellent results. Say goodbye to the hassle of cords and fuel, and enjoy a hassle-free gardening experience with the Hyundai HY20CGT grass trimmer.

By following this guide, you'll master your Hyundai HY20CGT 20V Cordless Grass Trimmer, achieving a beautifully neat lawn with ease and enjoying the full benefits of this next-generation garden tool. Happy trimming!

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We hope you’ve found these tips helpful and remember: if you need any further advice, our team of experts is on-hand to help you, so just get in touch! If you have any questions please visit www.hyundaisupport.co.uk. For expert advice or any questions you may have, you can give us a call on 01646 687880, fill out the contact form here or drop us a message on any of our social media pages - Facebook, Instagram or Twitter.