ROMOSS 30000mAh
ROMOSS 30,000mAh Portable Charger User Manual
Model: 30000mAh (PEA30)
Introduction
This manual provides essential information for the safe and efficient use of your ROMOSS 30,000mAh Portable Charger. Please read it thoroughly before operating the device and retain it for future reference.

Image: The ROMOSS 30,000mAh Portable Charger, showcasing its sleek black design, digital display, and the included charging cables.
Setup and Initial Charging
Before first use, it is recommended to fully charge your ROMOSS power bank. This ensures optimal battery performance and longevity.
Charging the Power Bank
- Connect a Charger: Use a compatible USB-C, Micro USB, or Lightning cable to connect the power bank to a wall charger. For the fastest recharge, a 30W Type-C charger (not included) is recommended.
- Monitor Charge Level: The digital LED display will show the current battery percentage. It will indicate "100" when fully charged.
- Charging Time: With a 30W Type-C charger, the power bank can be fully recharged in approximately 5.5 hours. Longer charging times may occur with lower wattage chargers.

Image: The power bank connected to a wall charger, illustrating the fast recharge capability.

Image: The product packaging, including the power bank, user manual, and USB-C to USB-A cable.
Operating Instructions
Your ROMOSS power bank is designed for versatile and fast charging of various electronic devices.
Charging Your Devices
The power bank features three output ports and three input ports, allowing for flexible charging options.
- Output Ports:
- 1x USB-C (30W Max)
- 2x USB-A (22.5W Max each)
- Input Ports:
- 1x USB-C (30W Max)
- 1x Micro USB (18W Max)
- 1x Lightning (18W Max)
To charge a device, connect it to one of the power bank's output ports using a compatible charging cable. The power bank will automatically begin charging.

Image: Detailed view of the power bank's multiple input and output ports.
Fast Charging Capabilities
The USB-C port supports 30W two-way fast charging, significantly reducing both charging and recharging times compared to traditional power banks. It supports advanced charging protocols such as PD3.0, QC3.0, SCP, FCP, and AFC.

Image: The power bank demonstrating fast charging for an iPhone via its USB-C port.

Image: A chart illustrating the fast charging performance for different devices, including smartphones, tablets, and gaming consoles.
Charging Multiple Devices Simultaneously
The power bank can charge up to three devices concurrently using its multiple output ports. This is ideal for charging your phone, tablet, and headphones at the same time.

Image: The power bank connected to and charging three different devices simultaneously.

Image: Another view of the power bank charging multiple devices, including an iPad, AirPods, and an iPhone.
LED Digital Display
The integrated LED display provides real-time information about the power bank's status, including battery percentage, charging voltage, and charging current.

Image: The smart LED display showing various charging metrics.
Product Demonstration Video
Video: A demonstration of the ROMOSS 30W Power Bank (PEA30), highlighting its features such as two-way fast charging, multiple device charging, and portability.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the surface of the power bank. Avoid using harsh chemicals or abrasive materials.
- Storage: Store the power bank in a cool, dry place away from direct sunlight and extreme temperatures. If storing for extended periods, ensure it is charged to about 50-75% capacity.
- Avoid Drops: Protect the device from drops and impacts, which can damage internal components.
- Water Exposure: Do not expose the power bank to water or excessive moisture.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Power bank not charging | Charging cable or adapter is faulty; power bank is fully charged; input port issue. | Try a different charging cable and adapter. Ensure the power bank is not already at 100%. Check if the input port is clean and undamaged. |
| Device not charging from power bank | Output cable is faulty; power bank is depleted; device is not compatible; power bank is in protection mode. | Try a different output cable. Recharge the power bank. Ensure your device is compatible with USB charging. Press the power button to reactivate the power bank. |
| Slow charging speed | Cable or adapter does not support fast charging; device does not support fast charging; multiple devices charging simultaneously. | Use a 30W PD-compatible charger and cable. Ensure your device supports fast charging protocols. Charging multiple devices may reduce individual charging speeds. |
| LED display not working | Power bank is off; internal malfunction. | Press the power button to activate the display. If the issue persists, contact customer support. |
If you encounter issues not listed here, please refer to the support section for assistance.
Specifications
| Feature | Detail |
|---|---|
| Model Number | 30000mAh (PEA30) |
| Battery Capacity | 30,000 Milliamp Hours (mAh) |
| Product Dimensions | 10 x 5 x 3 inches |
| Item Weight | 1.46 pounds (approx. 660g) |
| Input Ports | USB Type-C (30W Max), Micro USB (18W Max), Lightning (18W Max) |
| Output Ports | USB Type-C (30W Max), 2x USB-A (22.5W Max each) |
| Special Features | Fast Charging (PD3.0, QC3.0, SCP, FCP, AFC support), Digital LED Display |
| Color | Black |
| Battery Type | Lithium Polymer |

Image: The power bank's large capacity, illustrating how many times it can charge common devices.

Image: An internal view and diagram highlighting the comprehensive safety protections built into the power bank.

Image: The power bank's size and weight, emphasizing its portability.
Warranty and Support
For detailed warranty information and customer support, please refer to the official ROMOSS website or the contact information provided with your purchase.
- Official User Manual (PDF): For a downloadable version of the user manual, please visit: ROMOSS User Manual PDF
- ROMOSS Store: Explore other ROMOSS products and find additional support at the official store: Visit the ROMOSS Store
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