1. Introduction
This manual provides essential information for the safe and effective operation of your SUHU 12V/12A 24V 6A Portable Car Battery Charger. Please read all instructions carefully before use and retain this manual for future reference.
Figure 1: SUHU 12V/12A 24V 6A Portable Car Battery Charger with clamps and power cord.
2. Safety Information
Always prioritize safety when operating electrical equipment. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Ensure the charger is disconnected from the power supply before making or breaking connections to the battery.
- Operate in a well-ventilated area.
- Avoid sparks or flames near the battery during charging, as batteries can produce explosive gases.
- Wear eye protection and protective clothing.
- Keep out of reach of children.
- Do not charge frozen batteries.
- This charger is designed for 12V and 24V lead-acid batteries (AGM, GEL, SLA, Deep Cycle, Dry, Wet) and LiFePO4 batteries. Do not use for other battery types.
- The charger features multi-protection against over current, short circuit, overheat, reverse polarity, and fire material.
3. Product Overview
3.1 Components
- Main Charger Unit
- Battery Clamps (Red for positive, Black for negative)
- AC Power Cord
3.2 LCD Display and Mode Selection
The LCD screen displays charging voltage, current, mode, battery type, power remaining, and temperature. The 'MODE' button allows selection between different charging programs.
Figure 2: Visual representation of the LCD display showing various charging parameters and battery level stages.
The charger features an integrated thermal sensor that automatically detects ambient temperature and adjusts charging parameters to prevent over-charging in hot climates and under-charging in cold climates (Winter Mode and Summer Mode).
Figure 3: Illustration of the charger's temperature compensation feature, showing automatic adjustment for high and low temperatures.
4. Setup
Follow these steps to set up your SUHU battery charger:
- Ensure the charger is unplugged from the AC power outlet.
- Connect the red (+) clamp to the positive terminal of the battery.
- Connect the black (-) clamp to the negative terminal of the battery.
- Plug the AC power cord into a standard wall outlet.
- The charger will automatically detect the battery voltage (12V or 24V).
The charger is suitable for various applications:
Figure 4: Examples of vehicles and equipment compatible with the SUHU battery charger, including cars, SUVs, trucks, steaships, tractors, and RVs.
5. Operating Instructions
5.1 Selecting Charging Mode
After connecting the battery and plugging in the charger, press the 'MODE' button to select the appropriate charging program for your battery type. The charger supports AGM, Car (Lead-Acid), Moto (Motorcycle), LiFePO4, and Repair modes.
The charger features a 7-stage smart charging process:
- Battery desulphation
- Soft start charging
- Bulk charging
- Absorption charging
- Battery test
- Recondition charging
- Float & maintenance charging
Figure 5: Diagram illustrating the 7-step smart charging process of the SUHU battery charger.
5.2 Pulse Repair Mode
The 'REPAIR' mode is designed to help restore old, idle, stratified, or sulfated batteries. Select this mode manually if your battery is not charging normally. This function can improve battery life and performance.
NOTE: The repair mode cannot activate a completely dead battery or repair severely damaged batteries to 100% new condition.
Figure 6: Visual explanation of the battery repair function, showing desulfation, battery repair, and compensation charge processes.
5.3 Automatic Charging and Memory Function
Once the correct mode is selected, the charger will automatically manage the charging process and stop when the battery is fully charged. The memory function defaults to the last used mode after a power failure, simplifying repeated use.
Watch this video for a demonstration of the SUHU 12A Car Battery Charger in action:
Video 1: Demonstration of the SUHU 12A Car Battery Charger, highlighting its features and ease of use.
Another video showcasing the SUHU 12A battery trickle charger:
Video 2: Overview of the SUHU 12A battery trickle charger, demonstrating its functionality and various modes.
6. Maintenance
To ensure optimal performance and longevity of your charger and batteries:
- Keep the charger clean and dry.
- Store in a cool, dry place when not in use.
- Regularly inspect the battery clamps and cables for any damage.
- The charger features a premium cooling fan to prevent overheating during operation.
Figure 7: Close-up of the charger's premium cooling fan, designed to maintain optimal operating temperature.
7. 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; loose connection. | Check power outlet; ensure AC cord is securely plugged in. |
| Battery not charging. | Incorrect mode selected; poor clamp connection; severely damaged battery. | Select correct mode; ensure clamps are securely attached; try 'REPAIR' mode for sulfated batteries (if applicable). |
| Error message on LCD. | Reverse polarity; short circuit; over-temperature. | Check clamp connections (red to positive, black to negative); ensure no short circuits; allow charger to cool down. |
The charger includes multiple safety protections:
- Over current protection
- Short circuit protection
- Overheat protection
- Reverse polarity protection
- Fire material protection
- Cooling system protection
Figure 8: Icon representing the multiple protection features of the SUHU battery charger.
8. Specifications
- Model Number: FBC122412D
- Input Voltage: 24 Volts
- Current Rating: 12 Amps
- Item Weight: 1.81 pounds
- Package Dimensions: 9.65 x 5.63 x 2.91 inches
- Compatible Battery Types: 12V and 24V Lead-Acid batteries (AGM, GEL, SLA, Deep Cycle, Dry, Wet), LiFePO4 batteries
9. Warranty and Support
For warranty information or technical support, please refer to the product packaging or contact SUHU customer service directly. Contact details are typically provided with your purchase documentation.
