18-21V Brushless Chain Saw Control Board | Circuit Panel
18-21V Brushless Chain Saw Control Board | Circuit Panel
18–21V Brushless Electric Chain Saw Control Board
Keep your cordless chain saw running at peak performance with this precision-engineered 18–21V Brushless Lithium Battery Electric Chain Saw Control Board. Designed as a direct replacement or upgrade circuit board for brushless electric chain saws, this compact control panel delivers reliable motor management, smooth speed regulation, and built-in protection circuitry — all in a sturdy metal and plastic housing that fits neatly inside your tool's shell.
Whether you're repairing a worn-out board or building a custom power tool project, this pre-tested control board gives you confidence right out of the box. Every unit is fully tested and verified functional before shipment, so you can get straight to work.
Key Features
- Compatible Voltage: 18–21V brushless lithium battery systems
- Brushless Motor Control: Efficient electronic speed control for brushless motors, extending tool life and improving performance
- Pre-Tested & Verified: Each board is individually tested and confirmed fully operational before shipping
- Easy Installation: Connect internal wiring, secure the motor, install the case, and tighten screws — straightforward DIY setup
- Alarm Protection: Built-in buzzer alert warns of improper assembly; ensure the speed control switch is fully depressed before powering on to prevent alarm triggers
- Compact Size: 6.2 × 5.2 × 0.8 cm — designed to fit standard brushless chain saw housings
- Durable Construction: Metal and plastic composite materials for lasting reliability in workshop and outdoor use
- Color: Black
Specifications
| Product Name | Chain Saw Control Board (Control Panel) |
| Voltage | 18–21V |
| Motor Type | Brushless |
| Material | Metal, Plastic |
| Color | Black |
| Dimensions | 6.2 × 5.2 × 0.8 cm |
| Quantity | 1 × Control Panel |
| Country of Origin | Made in Mainland China |
Installation Guide
- Connect all internal wires to the control board as per your saw's wiring diagram.
- Secure the brushless motor in position within the housing.
- Install the outer case around the assembly.
- Before powering on, manually rotate the square shaft of the head to confirm it spins freely.
- Important: Press the speed control switch firmly downward until there is no gap in the shell, then connect the battery. Failure to do so may trigger the buzzer alarm.
Package Contents
- 1 × Electric Chain Saw Control Board (Control Panel)
Important Notes
- Slight color variation may occur due to monitor settings and lighting conditions.
- Please allow ±1–3 mm manual measurement deviation.
- Follow all assembly steps carefully to protect the motherboard from damage.
For general power tool safety best practices, refer to the U.S. Occupational Safety and Health Administration (OSHA) Power Tools Safety Guidelines.
Frequently Asked Questions
Q: What types of electric chain saws is this brushless control board compatible with?
A: This control board is designed for brushless electric chain saws operating on 18–21V lithium battery systems. It is a universal-style replacement board suitable for DIY repair and custom power tool builds within that voltage range. Always verify your saw's voltage and motor specifications before installing.
Q: Why does the buzzer alarm sound when I first power on the chain saw?
A: The buzzer alarm is triggered when the speed control switch is not fully depressed before the battery is connected. To prevent this, press the speed control switch firmly until there is absolutely no gap in the outer shell, then connect the power supply. This step ensures proper initialization of the control board.
Q: Is the control board pre-tested before shipping?
A: Yes — every control board is individually tested and confirmed to be fully functional before it leaves the facility. If you follow the assembly and startup instructions correctly and still experience issues, double-check all wiring connections and ensure the speed control switch is properly seated.
Q: Can this control board be used for a custom DIY power tool project?
A: Absolutely. This board is listed as customizable and is well-suited for electronics hobbyists and DIY power tool repair or build projects. Its compact 6.2 × 5.2 × 0.8 cm footprint makes it easy to integrate into custom enclosures compatible with 18–21V brushless motor setups.