Brushless Wrench Control Board 18V 21V for Dayi 2106 161 169

Enhance your Dayi 2106/161/169 brushless wrench with the Brushless Wrench Control Board 18V / 21V — a compact, tested control solution designed for reliable performance and smooth, efficient operation. This board is pre-tested and ready to integrate into your tool setup, offering steady power delivery and compatibility with common battery configurations.

Key benefits include stable speed control, compatibility with 18V systems (21V when fully charged), and a compact footprint that fits general control panels (size 5.2 x 6.2 cm). It’s engineered to support Dayi 2106/161/169 brushless wrenches, helping you maintain consistent torque and reduce wear on your tools. The board can work with battery packs marked for higher voltages, while keeping actual operating voltage near 18V (5-series 2-parallel or 5-series 3-parallel Li‑ion configurations when fully charged). For best results, follow the installation and testing steps carefully to ensure safe, reliable operation.

Note: The real color of the item may be slightly different from pictures due to monitor brightness and lighting conditions.

Benefits & Tips

• Versatile compatibility with Dayi 2106/161/169 brushless wrenches for reliable, consistent performance.
• Efficient power handling with 18V nominal input (up to 21V when fully charged) and up to 300W for robust drive capability.
• Simple setup guidance: align the motor shaft, install the case, tighten screws, and ensure the shell has no gaps to avoid buzzing alarms.

Product specifications

• Purpose: Brushless angle grinder drive control board for Dayi 2106/161/169
• Drive voltage: 18V (fully charged 21V)
• Power: 300W
• General control panel size: 5.2 x 6.2 cm
• Battery compatibility: Works with battery packs marked 48V, 68V, 88V, 98V, 128V or TV; actual operating voltage is 18V (5S 2P 10 cells or 5S 3P 15 cells in Li‑ion packs)
• Testing note: Before testing, connect the wire, fix the motor, install the case, tighten the screws, and ensure the square shaft can rotate easily without gaps in the shell to avoid alarms
• Other: Sensorless brushless drive control board design

Package includes:

• 1 x Control board

Warnings / Reminders

• Before testing the machine, you must first connect the wire—fix the motor—install the case—tighten the screw—make sure that the square shaft of the head can be easily rotated without any gap in the shell. Otherwise, there may be a buzzing alarm!
• To prevent damage to the motherboard, please follow the requirements.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

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