Introduction
Thank you for choosing the KUULAA 10000mAh Portable Power Bank. This device is designed to provide reliable and efficient portable charging for your electronic devices. Featuring a high-capacity lithium polymer battery, multiple output ports, and an intelligent digital display, it ensures your devices stay powered on the go. Please read this manual carefully to ensure proper use and maintenance of your power bank.

Image: KUULAA 10000mAh Power Bank with digital display, resting on a laptop.
Product Features
- High Capacity: 10000mAh lithium polymer battery.
- Multiple Outputs: Two USB-A ports and one USB Type-C port for charging up to three devices simultaneously.
- Fast Charging: Supports PD3.0 bidirectional fast charging and QC (Quick Charge) with up to 18W output for compatible devices.
- Digital Display: Clear LED display shows the remaining battery percentage.
- Compact Design: Portable and easy to carry.
Video: A promotional video showcasing the KUULAA 10000mAh Power Bank's design and charging capabilities.
Setup
Charging the Power Bank
- Use a compatible USB cable (Type-C or Micro USB) to connect the power bank's input port to a USB wall charger or computer USB port.
- For optimal charging speed, especially for the fast charging version, use a 9V/2A or 5V/3A adapter.
- The digital display will show the charging progress. The percentage will increase as the power bank charges.
- Once fully charged, the display will show 100%.

Image: The power bank displaying 75% charge, indicating its current battery level.
Operating Instructions
Charging Your Devices
- Connect your device to one of the power bank's output ports (USB-A or USB Type-C) using a suitable charging cable.
- The power bank will automatically begin charging your device. The digital display will show the power bank's remaining charge.
- You can charge up to three devices simultaneously using the available output ports.
- The power bank will automatically turn off when charging is complete or after a period of inactivity.

Image: The power bank connected and charging three different mobile devices at once, demonstrating its multi-port output capability.
Checking Battery Level
The digital display on the power bank shows the current battery percentage. Simply connect a device or press the power button (if available) to activate the display.

Image: A detailed diagram illustrating the power bank's input (Micro USB, Type-C) and output (USB-A1, USB-A2, Type-C) ports, along with their respective voltage and current specifications.
Maintenance
- Keep the power bank away from extreme temperatures, direct sunlight, and moisture.
- Do not drop, disassemble, or attempt to repair the device yourself.
- Clean the power bank with a soft, dry cloth. Avoid using harsh chemicals.
- Store the power bank with a partial charge (around 50-70%) if not used for extended periods to prolong battery life.
Troubleshooting
- Power bank not charging or charging slowly:
- Ensure the charging cable and wall adapter are functioning correctly and meet the recommended specifications (e.g., 9V/2A or 5V/3A for fast input). Try a different cable or adapter.
- Device not charging from power bank:
- Check if the power bank has sufficient charge. Ensure the cable connecting your device to the power bank is securely plugged in and not damaged. Try a different output port or cable.
- Digital display stuck at 99%:
- It is normal for the power bank to take a longer time to reach 100% from 99%. Allow additional time for the final percentage to register.
- Power bank not turning off:
- The power bank is designed to automatically turn off when charging is complete or after a period of inactivity. If it remains on, it may indicate a minor issue, but typically resolves itself.
- Micro-USB cable not fitting securely:
- Some users have noted the Micro-USB input port can be deep. Ensure your cable has a sufficiently long connector, or consider using the Type-C input.
Specifications

Image: The product packaging displaying detailed technical specifications and model information.
| Feature | Specification |
|---|---|
| Brand | KUULAA |
| Model No. | KL-YD01Q |
| Battery Type | Li-Polymer Battery |
| Capacity | 10000mAh / 3.7V / 37Wh |
| Shell Material | Plastic |
| Features | Digital Display, Fast Charging (QC+PD) |
| Micro USB Input | DC 5V=2A, 9V=2A |
| Type-C Input | DC 5V=3A, 9V=2A |
| USB-A1 Output | DC 5V=2.4A, 9V=2A, 12V=1.5A |
| USB-A2 Output | DC 5V=2.4A, 9V=2A, 12V=1.5A |
| Type-C Output | 5V=3A, 9V=2A, 12V=1.5A |
| Max Output Power | 18W |
| Dimensions | 14.6 x 7 x 1.6 cm |
| Certification | CE |
User Tips
- Real Capacity: Due to energy conversion losses, the actual usable capacity for charging devices is typically around 6500-7000mAh, not the full 10000mAh.
- Compatibility: This power bank is compatible with a wide range of smartphones and devices, including iPhone, Xiaomi, Samsung, Huawei, Motorola, Honor, and Leeco, as long as they charge via USB.
- Simultaneous Use: The power bank can charge itself while simultaneously charging connected devices.
- No Wireless Charging or Flashlight: This model does not feature wireless charging or a built-in flashlight.
- Screen Protection: The digital display screen may be prone to scratches; consider applying a protective film if desired.
Warranty and Support
For warranty claims or technical support, please contact the retailer or manufacturer directly. Keep your proof of purchase for any warranty-related inquiries. Do not attempt to open or repair the device yourself, as this may void the warranty.