{"product_id":"brushless-angle-grinder-control-board-18v-21v-300w-drive","title":"Brushless Angle Grinder Control Board 18V 21V 300W Drive","description":"\u003cp\u003eUpgrade or replace the drive electronics in your cordless angle grinder or polishing machine with this compact \u003cstrong\u003eBrushless Sensorless Control Board\u003c\/strong\u003e. Engineered for 18V–21V lithium battery tool systems (5-cell Li-ion, fully charged at 21V), this 300W drive board is a reliable replacement for the 2106 brushless angle grinder platform — keeping your tools running at full performance.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Voltage Compatibility:\u003c\/strong\u003e Works with 18V (nominal) \/ 21V (fully charged) 5-cell lithium battery packs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e300W Power Rating:\u003c\/strong\u003e Delivers consistent, efficient power to brushless sensorless motors in angle grinders and polishing machines.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSensorless Brushless Technology:\u003c\/strong\u003e Maximises motor efficiency and extends component life with no Hall-effect sensors to fail.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Board Size:\u003c\/strong\u003e Measures just \u003cstrong\u003e5.23 × 6.3 cm\u003c\/strong\u003e — a direct drop-in fit for 2106 platform tools.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePre-Tested Quality:\u003c\/strong\u003e Every board is functionally tested before dispatch to ensure reliable operation right out of the box.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGeneral-Purpose Design:\u003c\/strong\u003e Compatible with a range of 18V\/21V brushless angle grinders and polishing machines using the 2106 control panel format.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e PVC-insulated board housing resists everyday workshop knocks and vibration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Voltage:\u003c\/strong\u003e 18V (nominal) \/ 21V (fully charged)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery Configuration:\u003c\/strong\u003e 5-series lithium-ion cells\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated Power:\u003c\/strong\u003e 300W\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor Type:\u003c\/strong\u003e Brushless, sensorless\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoard Dimensions:\u003c\/strong\u003e 5.23 × 6.3 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Platform:\u003c\/strong\u003e 2106 brushless angle grinder \/ polishing machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e PVC-insulated PCB assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Brushless Sensorless Angle Grinder Drive Control Board\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho Is This For?\u003c\/h2\u003e\n\u003cp\u003eIdeal for DIY enthusiasts, repair technicians, and power-tool hobbyists who need a cost-effective, quality replacement control board to restore a faulty angle grinder or polishing machine to full working order — without replacing the entire tool.\u003c\/p\u003e\n\n\u003cp\u003eFor general electrical safety guidance when working with power-tool electronics, refer to the U.S. Consumer Product Safety Commission – Power Tools Safety resource.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Which tools is this brushless control board compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This control board is designed for 18V\/21V brushless sensorless angle grinders and polishing machines built on the 2106 platform. The compact 5.23 × 6.3 cm form factor allows it to slot directly into the original control panel housing of compatible tools.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What voltage and battery type does the control board support?\u003c\/h4\u003e\n\u003cp\u003eA: The board supports a drive voltage of 18V (nominal), with a fully charged input of 21V from a standard 5-series lithium-ion battery pack — making it compatible with most 18V\/21V cordless tool battery systems.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is the control board tested before shipping?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. Every control board is functionally tested prior to dispatch to verify correct operation, so you can install it with confidence.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the power rating of this drive board?\u003c\/h4\u003e\n\u003cp\u003eA: This control board is rated at 300W, providing ample drive power for brushless sensorless angle grinder and polishing machine motors within the 18V–21V system range.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Which tools is this brushless control board compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This control board is designed for 18V\/21V brushless sensorless angle grinders and polishing machines built on the 2106 platform. 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