Product Overview
The YARDCARE 12-Inch Electric Chainsaw (Model: BTCS20012) is a cordless, battery-powered tool designed for professional wood cutting and tree pruning. It features a brushless motor, dual operating modes, and an LED display for enhanced user control and efficiency. This manual provides essential information for safe and effective operation, maintenance, and troubleshooting.

Figure 1: YARDCARE 12-Inch Electric Chainsaw with included 4.0Ah battery and charger.
Safety Information
Always prioritize safety when operating power tools. Read and understand all safety warnings and instructions before use. Failure to follow these instructions may result in electric shock, fire, and/or serious injury.
- Wear appropriate personal protective equipment (PPE), including safety glasses, gloves, and hearing protection.
- Ensure the chain brake is engaged when not actively cutting or when transporting the chainsaw.
- Keep hands, hair, and loose clothing away from moving parts.
- Do not operate the chainsaw in wet conditions or in the presence of flammable liquids or gases.
- Maintain a firm grip with both hands on the chainsaw handles.
- Be aware of kickback potential and maintain proper footing and balance.
- Disconnect the battery pack before performing any assembly, adjustments, or maintenance.
- The intelligent e-brake system quickly stops the chain within 0.2 seconds, reducing rebound force.
- Built-in overheating, overload, and undervoltage protection mechanisms ensure stable and reliable operation.

Figure 2: Multiple safety protection features including overload, overheat, overdischarge, releasing protection lock, and protection brake guard.
Package Contents
Verify that all items are present upon unpacking:
- YARDCARE 12-Inch Electric Chainsaw (Model: BTCS20012)
- 18V 4.0Ah Lithium-ion Battery Pack
- Battery Charger
- 12-Inch Guide Bar
- Cutting Chain
- Guide Bar Protective Cover
- Instruction Manual

Figure 3: All components included in the YARDCARE 12-Inch Electric Chainsaw package.
Setup
- Install Guide Bar and Chain:
Remove the side cover by turning the locking knob counter-clockwise. Place the chain onto the guide bar, ensuring the cutting teeth are oriented correctly. Attach the chain to the drive sprocket on the chainsaw body, then align the guide bar with the mounting studs.

Figure 4: Visual guide for chainsaw assembly, including chain and bar installation.
- Adjust Chain Tension:
Replace the side cover. Use the tension adjustment wheel (knob) on the side of the chainsaw to tighten the chain. The chain should be snug but still allow for slight movement (approximately 3-4mm clearance) when pulled away from the guide bar. No additional tools are required for this adjustment.

Figure 5: Tool-free chain tension adjustment knob for easy maintenance.
- Add Lubricating Oil:
Locate the oil reservoir cap on the chainsaw body. Unscrew the cap and fill the reservoir with appropriate chainsaw bar and chain oil (oil not included). The reservoir has a 150ml capacity. Do not overfill. The automatic oil supply system will lubricate the chain during operation. A transparent window allows monitoring of the oil level.

Figure 6: Filling the automatic oil lubrication system reservoir.
- Install Battery Pack:
Insert the fully charged 18V 4.0Ah Lithium-ion battery pack into the battery slot at the rear of the chainsaw until it clicks securely into place.
Operating Instructions
- Power On/Off:
Press the power button on the LED display to turn the chainsaw on. Press and hold the power button to turn it off.
- LED Display:
The smart LED display shows real-time information:
- Battery Charge Indicator Light
- Error Warning Code
- Brake Indicator Light
- Acceleration/Power Mode (13m/s)
- Deceleration/Eco Mode (10m/s)

Figure 7: The smart LED display provides essential operational feedback.
- Select Operating Mode:
Use the '+' and '-' buttons on the LED display to switch between Power mode (13m/s chain speed for demanding tasks) and Eco mode (10m/s chain speed for energy saving and lighter tasks).
- Engage/Disengage Chain Brake:
The chain brake is located at the front handle. Push it forward to engage (lock) the chain, and pull it back towards the handle to disengage (unlock) the chain. Always ensure the chain brake is engaged when carrying the chainsaw or when not actively cutting.
- Cutting Operation:
With the chain brake disengaged, firmly grip the chainsaw with both hands. Press the trigger to start the chain. Apply the gripping claw (wood teeth) to the wood for stability before cutting. Guide the chainsaw through the material with steady pressure. Avoid forcing the saw.

Figure 8: The gripping claw design enhances cutting stability.
Maintenance
- Chain Lubrication: Regularly check the oil level through the transparent window and refill as needed. The automatic oil supply system ensures continuous lubrication during operation.
- Chain Tension: Periodically check and adjust chain tension using the tool-free knob. A properly tensioned chain is crucial for safe and efficient cutting.
- Cleaning: After each use, clean the chainsaw body, guide bar, and chain to remove sawdust, debris, and resin. Ensure the dustproof sponge filtration system is clear to prevent wood chips from entering core components.
- Storage: Store the chainsaw in a dry, secure location, out of reach of children. Ensure the battery is removed and the guide bar protective cover is in place.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Chainsaw does not start. | Battery not inserted correctly or discharged. Chain brake engaged. | Ensure battery is fully charged and properly seated. Disengage chain brake. Check LED display for error codes. |
| Chain not cutting efficiently. | Dull chain. Incorrect chain tension. Low oil level. | Sharpen or replace chain. Adjust chain tension. Refill oil reservoir. |
| Chainsaw stops during operation. | Overload protection activated. Overheat protection activated. Low battery. | Reduce cutting pressure. Allow motor to cool down. Recharge battery. Check LED display for fault codes. |
For issues not listed here, please contact YARDCARE customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand | YARDCARE |
| Model Number | BTCS20012 |
| Power Source | Battery Powered |
| Battery Type | 18V 4.0Ah Lithium-ion |
| Horsepower | 800 Watts |
| Item Weight | 5 Pounds |
| Product Dimensions | 11.5"L x 7.7"W x 9.5"H |
| Chain Length | 12 Inches |
| Chain Speed (Power Mode) | 13m/s |
| Chain Speed (Eco Mode) | 10m/s |
| Oil Reservoir Capacity | 150ml |
| Motor Type | Brushless |
Warranty and Support
YARDCARE products are manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official YARDCARE website. Keep your purchase receipt as proof of purchase.
For additional support, you may contact YARDCARE customer service through their official channels. Please have your model number (BTCS20012) and purchase date available when contacting support.
