Universal Sensorless 3-Phase BLDC Power Tool Drive Controller

Description: Heavy-duty sensorless brushless motor controller board pulled from a project. Perfect replacement for repairing faulty cordless angle grinders, impact wrenches, blowers, or custom DIY BLDC motor setups. Key Details: Operating Voltage: 18V – 21V (5S Li-ion pack compatible) Power Capacity: High-current design (up to 300W+ range) Features: Epoxy-potted body for water/dust protection, integrated mode setup push-button, standard speed trigger terminal block. Wiring Output: Heavy main power leads (B+/B-) and 3-phase motor leads (U/V/W). Condition: Clean, fully potted, intact connector pins