{"product_id":"brushless-electric-chain-saw-control-board-18-21v","title":"18-21V Brushless Chain Saw Control Board | Circuit Panel","description":"\n\u003ch2\u003e18–21V Brushless Electric Chain Saw Control Board\u003c\/h2\u003e\n\u003cp\u003eKeep your cordless chain saw running at peak performance with this precision-engineered \u003cstrong\u003e18–21V Brushless Lithium Battery Electric Chain Saw Control Board\u003c\/strong\u003e. 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.\u003c\/p\u003e\n\n\u003cp\u003eWhether 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.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Voltage:\u003c\/strong\u003e 18–21V brushless lithium battery systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrushless Motor Control:\u003c\/strong\u003e Efficient electronic speed control for brushless motors, extending tool life and improving performance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePre-Tested \u0026amp; Verified:\u003c\/strong\u003e Each board is individually tested and confirmed fully operational before shipping\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy Installation:\u003c\/strong\u003e Connect internal wiring, secure the motor, install the case, and tighten screws — straightforward DIY setup\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAlarm Protection:\u003c\/strong\u003e Built-in buzzer alert warns of improper assembly; ensure the speed control switch is fully depressed before powering on to prevent alarm triggers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Size:\u003c\/strong\u003e 6.2 × 5.2 × 0.8 cm — designed to fit standard brushless chain saw housings\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Metal and plastic composite materials for lasting reliability in workshop and outdoor use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%\"\u003e\n  \u003ctr style=\"background:#f5f5f5\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eChain Saw Control Board (Control Panel)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e18–21V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e\u003cstrong\u003eMotor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eBrushless\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eMetal, Plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e6.2 × 5.2 × 0.8 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e1 × Control Panel\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eConnect all internal wires to the control board as per your saw's wiring diagram.\u003c\/li\u003e\n  \u003cli\u003eSecure the brushless motor in position within the housing.\u003c\/li\u003e\n  \u003cli\u003eInstall the outer case around the assembly.\u003c\/li\u003e\n  \u003cli\u003eBefore powering on, manually rotate the square shaft of the head to confirm it spins freely.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e 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.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Electric Chain Saw Control Board (Control Panel)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSlight color variation may occur due to monitor settings and lighting conditions.\u003c\/li\u003e\n  \u003cli\u003ePlease allow ±1–3 mm manual measurement deviation.\u003c\/li\u003e\n  \u003cli\u003eFollow all assembly steps carefully to protect the motherboard from damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor general power tool safety best practices, refer to the U.S. Occupational Safety and Health Administration (OSHA) Power Tools Safety Guidelines.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What types of electric chain saws is this brushless control board compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Why does the buzzer alarm sound when I first power on the chain saw?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is the control board pre-tested before shipping?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can this control board be used for a custom DIY power tool project?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What types of electric chain saws is this brushless control board compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"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. 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