1. Introduction
This manual provides essential instructions for the safe and effective use of your Onerbl 12V AC/DC Adapter. This adapter is designed to power and charge specific Braun Series 3 shaver models, ensuring your device receives the correct power supply.
Key Features:
- High-quality replacement power charger adapter.
- Input: AC 100-240V 50/60Hz (Worldwide AC Input).
- Output: 12V DC (specific to compatible Braun shavers).
- 6.5 feet extra-long cord for convenience.
- Built-in Over Voltage Protection and Over Heat Protection.
Compatible Braun Series 3 Shaver Models: 5413, 5414, 5415, 5742, 5772, 5774, 5775.
2. Setup
Follow these steps to set up your Onerbl AC/DC Adapter:
- Uncoil the adapter cord completely.
- Insert the two-prong plug of the adapter into a standard AC wall outlet (100-240V).
- Connect the specialized connector end of the adapter cable into the charging port of your compatible Braun Series 3 shaver. Ensure a secure connection.
The shaver should indicate that it is receiving power or charging, typically via an LED indicator on the shaver itself.

An image showing the black Onerbl 12V AC/DC adapter. It features a standard two-prong US wall plug on one end, a coiled power cord, and a specialized connector designed for Braun Series 3 shavers on the other end.
3. Operating Instructions
Once connected, the Onerbl AC/DC Adapter will provide power to your Braun Series 3 shaver. It can be used for two primary functions:
- Charging: When the shaver is turned off and connected to the adapter, it will charge the shaver's internal battery. Refer to your shaver's manual for specific charging times and battery indicators.
- Direct Power: The adapter can also power the shaver directly while it is in use, provided the shaver supports this functionality. This is useful if the shaver's battery is depleted.
Always ensure the adapter is securely plugged into both the wall outlet and the shaver before use.
4. Maintenance
Proper care will extend the life of your Onerbl AC/DC Adapter:
- Cleaning: Disconnect the adapter from the power outlet and the shaver before cleaning. Wipe the adapter and cord with a dry, soft cloth. Do not use liquid cleaners or immerse the adapter in water.
- Storage: When not in use, store the adapter in a cool, dry place, away from direct sunlight and extreme temperatures. Avoid tightly coiling the cord to prevent damage.
- Handling: Do not pull the cord to disconnect the adapter from the wall or shaver; always grasp the plug or connector directly. Avoid placing heavy objects on the cord or bending it sharply.
- Inspection: Periodically inspect the cord and adapter for any signs of damage, such as cuts, fraying, or discoloration. If damage is observed, discontinue use immediately.
5. Troubleshooting
If you encounter issues with your Onerbl AC/DC Adapter, consider the following:
| Problem | Possible Cause | Solution |
|---|---|---|
| Shaver not charging/powering on | Adapter not properly connected to wall outlet or shaver. | Ensure both ends of the adapter are securely plugged in. |
| Shaver not charging/powering on | Wall outlet is not active. | Test the wall outlet with another device or try a different outlet. |
| Shaver not charging/powering on | Adapter or shaver is damaged. | Inspect the adapter and shaver for visible damage. If damaged, discontinue use and seek replacement or repair. |
| Adapter feels unusually hot | Overload or internal issue. | Immediately unplug the adapter from the wall and shaver. Allow it to cool down. If overheating persists, discontinue use. |
If problems persist after attempting these solutions, contact customer support for further assistance.
6. Specifications
- Product Name: Onerbl 12V AC/DC Adapter
- Input: AC 100-240V, 50/60Hz (Universal Input)
- Output: 12V DC
- Cord Length: Approximately 6.5 feet (2 meters)
- Safety Features: Over Voltage Protection, Over Heat Protection
- Manufacturer: Shenzhen Waweis Technology Co., Ltd
7. Warranty and Support
For warranty information, please refer to the terms provided at the time of purchase or contact your retailer. This product is designed for reliable performance, and any manufacturing defects should be addressed through the appropriate support channels.
If you require technical assistance or have questions not covered in this manual, please contact Onerbl customer support or your product vendor.