1. Introduction
This manual provides detailed instructions for the safe and efficient use of your BUBUCAM 4-Slot USB NiMH AA/AAA Battery Charger. This device is designed to charge 1 to 4 rechargeable AA or AAA NiMH batteries simultaneously. It features independent charging slots, intelligent charging management, and multiple safety protections to ensure optimal battery life and user safety.
2. Safety Information
Please read and understand all safety instructions before using the charger. Failure to follow these instructions may result in electric shock, fire, or damage to the charger or batteries.
- Do not charge 1.5V Alkaline or Carbon batteries. This charger is specifically designed for 1.2V NiMH/Ni-Cd rechargeable batteries. Charging incompatible battery types can cause leakage, explosion, or fire.
- Do not mix different types or brands of batteries. Charge only batteries of the same type (AA or AAA) and chemistry (NiMH/Ni-Cd) together.
- Ensure correct battery polarity (+/-) when inserting batteries into the charger slots.
- Do not disassemble, modify, or attempt to repair the charger. Contact customer support if the device is damaged.
- Keep the charger away from water, moisture, and high temperatures.
- Unplug the charger from the power source when not in use or before cleaning.
- This charger includes built-in protections against overcharge, overcurrent, reverse polarity, and short circuits. However, always monitor the charging process.
3. Package Contents
- 1x BUBUCAM 4-Slot USB NiMH AA/AAA Battery Charger (Batteries not included)
4. Product Overview
The BUBUCAM charger is a compact and portable device designed for convenience. It features four independent charging slots and a universal USB input.
Image 1: BUBUCAM 4-Slot USB NiMH AA/AAA Battery Charger with its included USB cable.
Image 2: Close-up view of the four empty charging slots, showing the AA/AAA size indicators and polarity markings.
5. Setup
- Connect to Power: Plug the USB cable into the charger's USB input port.
- Connect the other end of the USB cable to a compatible USB power source (e.g., a computer USB port, a USB wall adapter, or a power bank). The input voltage should be DC 5V.
Image 3: Examples of connecting the charger to different USB power sources, including a power bank, laptop, and wall adapter.
6. Operating Instructions
- Insert Batteries: Carefully insert 1 to 4 rechargeable AA or AAA NiMH batteries into the charging slots. Ensure that the positive (+) and negative (-) terminals of the batteries align correctly with the markings in the charger slots.
- Charging Indicator: Each slot has an independent LED indicator. When a battery is correctly inserted and charging begins, the corresponding LED will light up red.
- Charging Process: The charger employs an intelligent three-stage charging management system:
- Stage 1: Constant voltage, low current charging.
- Stage 2: Single channel high current charging (up to 500mA).
- Stage 3: Small current maintenance charging.
- Charging Completion: Once a battery is fully charged, its corresponding LED indicator will automatically turn off.
- Remove Batteries: After charging is complete, carefully remove the batteries from the slots. It is recommended to unplug the charger from the power source when not in use.
Image 4: The charger with four AA batteries inserted, ready for charging. The back label with specifications is also visible.
Image 5: Top view of the charger, illustrating the red LED indicators above each slot, signifying active charging.
7. Specifications
| Feature | Detail |
|---|---|
| Model | BH-804U |
| Input | USB-DC 5V 1~2A |
| Output | DC AA 1.2V * 4 300mA, AAA 1.2V * 4 200mA |
| Compatible Batteries | 1-4 AA/AAA NiMH/Ni-Cd rechargeable batteries |
| Dimensions | 7.8 × 6.2 × 2.5 cm (approx.) / 3.15"D x 2.36"W x 0.98"H |
| Material | Plastic |
| Color | Black |
| Item Weight | 1.94 ounces |
Image 6: Diagram illustrating the approximate dimensions of the charger: 78mm length, 62mm width, and 25mm height.
8. Maintenance
- Cleaning: Use a soft, dry cloth to clean the charger. Do not use liquid cleaners or solvents.
- Storage: Store the charger in a cool, dry place away from direct sunlight and extreme temperatures.
- Ensure the charging contacts are free from dust and debris for optimal performance.
9. Troubleshooting
- LEDs not lighting up:
- Ensure the USB cable is securely connected to both the charger and the power source.
- Verify the power source is active and providing 5V DC output.
- Check if batteries are inserted with correct polarity.
- Confirm that the batteries are rechargeable NiMH/Ni-Cd type and not alkaline or carbon.
- Batteries not charging fully:
- Ensure the batteries are not excessively old or damaged, which can affect their ability to hold a charge.
- Verify that the charger contacts and battery terminals are clean.
- Charger feels warm during operation: It is normal for the charger to become slightly warm during the charging process. If it becomes excessively hot, disconnect it immediately and contact customer support.
10. Warranty and Support
For warranty information, technical support, or any inquiries regarding your BUBUCAM 4-Slot USB NiMH AA/AAA Battery Charger, please refer to the product packaging or contact the seller directly through your purchase platform. Keep your proof of purchase for warranty claims.