1. Introduction
Thank you for choosing the Eufab Automatic Charger 16616. This intelligent battery charger is designed for safe and efficient charging of 6V and 12V lead-acid batteries, including AGM, Gel, Wet, and maintenance-free types. Please read this manual thoroughly before first use to ensure proper operation and to prevent damage to the charger or battery.
2. Important Safety Instructions
Always observe the following safety precautions to prevent electric shock, fire, or injury:
- This charger is for charging 6V and 12V lead-acid batteries only. Do not use it for other battery types.
- Ensure adequate ventilation during charging. Batteries can produce explosive gases.
- Avoid open flames, sparks, and smoking near the battery during charging.
- Wear eye protection and protective clothing when working with batteries.
- Disconnect the AC power supply before connecting or disconnecting the charging clamps to the battery.
- Do not expose the charger to rain or excessive moisture.
- If the power cord is damaged, it must be replaced by the manufacturer, its service agent, or similarly qualified persons to avoid a hazard.
- Keep out of reach of children.
3. Package Contents
Verify that all items are present in the package:
- 1 x Eufab Automatic Charger 16616
- 1 x User Manual
4. Product Overview
Familiarize yourself with the components of your Eufab Automatic Charger 16616:

Image 1: The Eufab Automatic Charger 16616, showing the main unit with its digital display, mode button, power plug, and red and black battery clamps.
The charger features a digital display for voltage readings, a mode button to select charging programs, and robust battery clamps for secure connection.
5. Setup and Connection
Follow these steps to properly set up and connect your charger:
- Prepare the Battery: Ensure the battery terminals are clean and free of corrosion. If the battery has removable caps, check the electrolyte level and top up with distilled water if necessary (for wet batteries).
- Connect to Battery: First, connect the red positive (+) clamp to the positive (+) battery terminal. Then, connect the black negative (-) clamp to the negative (-) battery terminal. For vehicles, if the battery is still installed, connect the black clamp to the vehicle chassis away from the battery and fuel line.
- Connect to Power: Plug the charger's AC power cord into a standard 220V-240V, 50/60Hz electrical outlet. The charger will power on.

Image 2: The Eufab Automatic Charger 16616 connected to a car battery, demonstrating proper clamp placement on the battery terminals.
6. Operating Instructions
Once connected, the charger will automatically detect the battery voltage (6V or 12V). Use the 'MODE' button to select the appropriate charging program if multiple options are available (e.g., for different battery types or charging speeds). The display will show the current voltage and charging status.
Charging Process:
- The charger will begin charging automatically. It features a multi-stage charging process to optimize battery life and performance.
- The display will indicate the charging progress.
- Once the battery is fully charged, the charger will switch to a maintenance (float) mode to prevent overcharging.
Disconnecting the Charger:
- Unplug the AC power cord from the electrical outlet.
- Disconnect the black negative (-) clamp from the battery terminal (or vehicle chassis).
- Disconnect the red positive (+) clamp from the positive (+) battery terminal.
7. Care and Maintenance
To ensure the longevity and optimal performance of your Eufab Automatic Charger 16616:
- Clean the charger casing with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Inspect the cables and clamps regularly for any signs of damage or wear. Replace if necessary.
- Store the charger in a cool, dry place when not in use, away from direct sunlight and extreme temperatures.
- Ensure the cables are neatly coiled to prevent tangling and damage.
8. Troubleshooting
If you encounter issues with your charger, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Charger does not turn on. | No power from outlet; faulty connection. | Check the power outlet with another appliance. Ensure the power cord is securely plugged into the charger and the outlet. |
| Charger not charging the battery. | Incorrect battery connection; battery too deeply discharged; incorrect mode selected. | Verify correct polarity of clamps (+ to +, - to -). Ensure battery voltage is within the charger's range. Select the appropriate charging mode. |
| Charger displays an error code. | Internal fault; battery fault. | Disconnect the charger from power and battery, then reconnect. If the error persists, consult customer support. |
9. Technical Specifications
- Model: 16616
- Input Voltage: 220V - 240V AC, 50/60 Hz
- Output Voltage: 6V / 12V DC
- Charge Current:
- 2A (for 6V or 12V batteries from 1.2 Ah to 14 Ah)
- 4A (for 12V batteries from 14 Ah to 120 Ah)
- Charge Voltage (Nominal):
- 6V Mode: 7.2 - 7.4 V
- 12V Mode: 14.3 - 14.8 V
- Compatible Battery Types: 6V and 12V Lead-Acid (AGM, Gel, Wet, Maintenance-Free)
- Weight: 438 Grams
- Safety Standards: UL compliant
- Manufacturer: EAL GmbH
- Country of Origin: France
10. Warranty and Support
The Eufab Automatic Charger 16616 comes with a 1-year warranty on spare parts, as per manufacturer specifications. For warranty claims, technical support, or service inquiries, please contact your retailer or the manufacturer directly. Keep your proof of purchase for warranty validation.





