Introduction
This instruction manual provides essential information for the safe and effective use of your GUY-TECH AC Power Adapter. This adapter is designed as a compatible replacement power supply for the Drillmaster 69652 18V Battery Screwdriver Driver Tool, ensuring reliable power delivery for charging and operation.
Important Safety Information
- Read all instructions before use.
- Ensure the adapter's input voltage (100V-240V) matches your local power supply.
- Do not expose the adapter to water, moisture, or extreme temperatures.
- Avoid dropping or subjecting the adapter to severe impact.
- Do not attempt to open or modify the adapter. There are no user-serviceable parts inside.
- Always unplug the adapter from the power outlet when not in use or before cleaning.
- This adapter features Over Voltage, Over Current, and Short Circuit output Protection for enhanced safety.
Package Contents
The package contains:
- 1 x GUY-TECH AC Power Adapter (7ft cable with barrel connector)

Image: The GUY-TECH AC Power Adapter, featuring a black casing, a 7-foot long cable, and a barrel-type DC output connector. An LED indicator is visible on the adapter body.
Setup
- Verify Compatibility: Before connecting, ensure your device is the Drillmaster 69652 18V Battery Screwdriver Driver Tool or another compatible device requiring an 18V DC input with a barrel connector.
- Connect to Device: Insert the barrel connector end of the adapter cable firmly into the DC input port of your Drillmaster 69652 tool.
- Connect to Power Outlet: Plug the AC prongs of the adapter into a standard 100V-240V wall power outlet.
- Power Indicator: A small LED indicator on the adapter will illuminate, signifying that the adapter is receiving power and is ready to supply power to your device.

Image: A graphic emphasizing the 7-foot cable length and the presence of an LED indicator light on the power adapter.
Operating Instructions
Once properly connected, the GUY-TECH AC Power Adapter will begin supplying power to your Drillmaster 69652 tool. This allows for direct operation of the tool when plugged in, or for charging the tool's battery if it has charging capabilities via its DC input port. The 7-foot cable provides ample reach for convenient use.
- Ensure the LED indicator on the adapter is lit to confirm power flow.
- Refer to your Drillmaster 69652 tool's manual for specific charging times and operational guidelines.
Maintenance
- Cleaning: Disconnect the adapter from the power outlet and the device before cleaning. Use a soft, dry cloth to wipe the surface. Do not use liquid cleaners or solvents.
- Storage: Store the adapter in a cool, dry place away from direct sunlight and moisture when not in use. Avoid tightly coiling the cable to prevent damage.
- Inspection: Periodically inspect the cable and connectors for any signs of wear, cuts, or damage. If damage is observed, discontinue use immediately.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Adapter LED not lit / No power to device |
|
|
| Device not charging or operating correctly |
|
|
Specifications
- Brand: GUY-TECH
- Input Voltage: 100V - 240V AC (Worldwide compatible)
- Output Voltage: 18 Volts DC
- Cable Length: 7 Feet (approximately 2.1 meters)
- Connector Type: Barrel Connector
- Special Features: LED Indicator, Over Voltage Protection, Over Current Protection, Short Circuit Protection
- Compatible Devices: Drillmaster 69652 18V Battery Screwdriver Driver Tool (and other compatible 18V DC devices)
- Item Weight: 5 ounces (approximately 141 grams)
Warranty and Support
For warranty information or technical support regarding your GUY-TECH AC Power Adapter, please contact the manufacturer directly through their official channels. Refer to your purchase documentation for specific contact details.
