Introduction
This manual provides instructions for the safe and efficient use of your onerbl AC-DC Adapter, Model FFCL2015-2. This adapter is designed to provide power to and charge the battery of compatible devices, specifically the DCA Model ADJZ2035 18V(20V Max) 2Ah 36Wh Li-ion Battery Portable Cordless Electric Drill Set. Please read this manual thoroughly before use and retain it for future reference.
Important Safety Information
- Use only with compatible devices as specified in this manual.
- Do not expose the adapter to moisture, rain, or extreme temperatures.
- Do not disassemble or modify the adapter.
- Ensure the power outlet voltage matches the adapter's input specifications (100-240V AC).
- Disconnect the adapter from the power outlet when not in use or during electrical storms.
- Keep out of reach of children.
- Do not use if the adapter or cable is damaged.
- This adapter features short circuit protection.
Package Contents
Verify that all items are present in your package.
- 1 x onerbl AC-DC Adapter (Model FFCL2015-2)
Product Overview
The onerbl AC-DC Adapter converts alternating current (AC) from a wall outlet to direct current (DC) required by your compatible device. It is designed for reliable power delivery and battery charging.

Figure 1: Front and side view of the onerbl AC-DC adapter, showing input specifications and plug type.

Figure 2: Dimensions of the onerbl AC-DC adapter and its 76-inch cable.
Setup
- Inspect the Adapter: Before first use, visually inspect the adapter and its cable for any signs of damage. Do not use if damaged.
- Connect to Device: Locate the power input port on your DCA Model ADJZ2035 drill set or its battery charger. Insert the barrel connector of the onerbl AC-DC adapter firmly into this port.
- Connect to Power Outlet: Plug the two-prong (Type A) plug of the adapter into a standard 100-240V AC electrical wall outlet.
- Verify Connection: Ensure both connections are secure. The device should now receive power or begin charging its battery.

Figure 3: The onerbl AC-DC adapter connected to a power strip.
Operating Instructions
Once properly connected, the adapter will supply power to your device or charge its battery.
- Charging: When connected to a compatible battery charger, the adapter will facilitate the charging process. Refer to your device's manual for specific charging indicators and times.
- Direct Power: If your device can operate directly from AC power without a battery, the adapter will provide the necessary DC power.
- Disconnection: To disconnect, first unplug the adapter from the wall outlet, then disconnect the barrel connector from your device.
Maintenance
- Cleaning: Disconnect the adapter from all power sources before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or solvents.
- Storage: Store the adapter in a cool, dry place away from direct sunlight and extreme temperatures when not in use. Avoid tightly coiling the cable to prevent damage.
- Cable Care: Do not bend, twist, or pull the cable excessively. Avoid placing heavy objects on the cable.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not receiving power/charging. | Adapter not properly connected. | Ensure the adapter is securely plugged into both the wall outlet and the device. |
| Wall outlet is not active. | Test the wall outlet with another device or try a different outlet. | |
| Adapter or cable is damaged. | Inspect the adapter and cable for visible damage. Discontinue use if damaged. | |
| Adapter feels warm during use. | Normal operation. | A slight warmth is normal. If it becomes excessively hot or emits smoke/odor, disconnect immediately and discontinue use. |
Specifications
- Model: FFCL2015-2
- Input: 100-240V AC, 0.3A, 50/60Hz
- Output: 21V DC, 1.5A (31.5 Watts)
- Connector Type: Barrel Connector
- Cable Length: Approximately 76 inches
- Special Feature: Short Circuit Protection
- Compatible Devices: DCA Model ADJZ2035 18V(20V Max) 2Ah 36Wh Li-ion Battery Portable Cordless Electric Drill Set
- Manufacturer: Shenzhen Waweis Technology Co., Ltd
Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or contact the retailer.