JRAHK manufactures high-performance brushless DC motor controllers and LCD display kits for electric bicycles, scooters, and customized EVs.
JRAHK specializes in the design and production of advanced electronic control units for electric mobility. Their product line includes sine wave, square wave, and tri-mode brushless DC (BLDC) motor controllers, engineered for e-bikes, electric scooters, go-karts, and customized 4WD vehicles. Supporting a wide range of voltages from 36V to 84V and high-power outputs up to 3000W, JRAHK controllers offer features like dual-drive switching, low-noise starts, and robust system fault diagnostics.
In addition to motor controllers, JRAHK provides compatible LCD digital displays (such as the WXGN series), throttle units, and comprehensive conversion kits. These components seamlessly integrate to give riders real-time data on speed, voltage, and trip distance, while offering reliable power steering and intelligent self-learning capabilities for easy installation.
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When using the controller for the first time, you must let each motor perform self-learning. Ensure the learning direction is identical for both motors to prevent mechanical conflict or equipment damage.
Use the dual drive switching wire (typically the pink wire): plug it in to enable dual-drive operation, and unplug it to revert to single-drive.
Suspend the motor so it is not under load, turn on the key switch, and connect the white learning wire. If the motor spins in reverse, disconnect and reconnect the learning wire to reverse the direction. Once spinning correctly, wait 10 seconds before disconnecting the wire.
Always disconnect the main battery power supply before making or adjusting any wiring connections to avoid dangerous short circuits and personal injury.