ROMOSS SW30+ 30000mAh USB C Power Bank User Manual

1. Introduction

Thank you for choosing the ROMOSS SW30+ 30000mAh USB C Power Bank. This device is designed to provide portable power for your electronic devices. Please read this manual carefully before use to ensure proper operation and safety.

Package Contents:

• ROMOSS SW30+ Power Bank
• User Manual (this document)

Note: Charging cables and wall adapters are not included and must be purchased separately.

Image: The ROMOSS SW30+ Power Bank shown with its external packaging and a small user manual.

2. Safety Information

To prevent injury or damage to your device, please observe the following safety precautions:

• Do not expose the power bank to extreme temperatures, direct sunlight, or fire.
• Do not immerse the power bank in water or other liquids.
• Do not disassemble, modify, or attempt to repair the device.
• Keep out of reach of children.
• Use only compatible charging cables and adapters.
• Avoid dropping or subjecting the power bank to strong impacts.
• If the power bank swells, emits an odor, or becomes excessively hot, discontinue use immediately.
• Dispose of the power bank responsibly according to local regulations.

3. Product Overview

The ROMOSS SW30+ features a high-capacity battery, multiple input and output ports, and an LED digital display for monitoring battery status.

Image: A white ROMOSS SW30+ Power Bank with its digital LED display showing "100%".

3.1. Ports and Indicators

• Input Ports: Micro-USB, Lightning, USB-C (Type-C)
• Output Ports: 2 x USB-A, 1 x USB-C (Type-C)
• LED Digital Display: Shows remaining battery percentage, charging status, voltage (V), and current (A).

Image: Close-up of the ROMOSS SW30+ Smart Digital Display, illustrating how it shows power percentage, fast charge indicator, charging voltage (V), and charging current (A).

4. Setup

4.1. Initial Charging of the Power Bank

Before first use, fully charge your ROMOSS SW30+ Power Bank. This ensures optimal battery performance.

1. Connect a compatible charging cable (Micro-USB, Lightning, or USB-C) to one of the power bank's input ports.
2. Connect the other end of the cable to an 18W (or higher) wall charger.
3. The LED display will show the charging percentage. A full charge from empty typically takes approximately 11 hours with an 18W charger.
4. The display will show "100%" when fully charged.

Image: The ROMOSS SW30+ Power Bank connected to an 18W wall charger, indicating that it takes 11 hours to fully recharge.

5. Operating Instructions

5.1. Charging Your Devices

The ROMOSS SW30+ can charge up to three devices simultaneously.

1. Connect your device's charging cable to one of the power bank's output ports (USB-A or USB-C).
2. Connect the other end of the cable to your device.
3. The power bank will automatically begin charging your device. The LED display will show the remaining battery percentage.
4. For optimal fast charging, use the USB-C output or the designated fast-charge USB-A port with compatible devices and cables.

Image: The ROMOSS SW30+ Power Bank simultaneously charging an iPhone 8, iPad mini, and Samsung S9, demonstrating its large 30000mAh capacity and multiple output ports.

Image: The ROMOSS SW30+ Power Bank connected to and charging a smartphone, a tablet, and a Nintendo Switch console at the same time.

5.2. Understanding the LED Display

The digital LED display provides real-time information about the power bank's status:

• Percentage (%): Indicates the remaining battery charge.
• Fast Charge Indicator: An icon (e.g., a lightning bolt) may appear when fast charging is active.
• Voltage (V): Displays the output voltage.
• Current (A): Displays the output current.

Image: A close-up of the ROMOSS SW30+ Power Bank's LED display clearly showing "100%", indicating a full charge.

6. Specifications

Image: The ROMOSS SW30+ Power Bank placed on an airplane tray table, with text overlays indicating its dimensions (6.75*3.23*1.32 inches) and weight (675g/23.8oz).

7. Maintenance

• Clean the power bank with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
• Store the power bank in a cool, dry place away from direct sunlight and extreme temperatures.
• If not used for extended periods, charge the power bank to at least 50% every three months to maintain battery health.
• Avoid dropping or subjecting the power bank to strong impacts.

8. Troubleshooting

Power bank not charging:

• Ensure the charging cable is securely connected to both the power bank and the wall charger.
• Verify that the wall charger is functioning correctly and provides sufficient power (18W recommended).
• Try a different charging cable or wall adapter.

Devices not charging from power bank:

• Check if the power bank has sufficient charge (refer to the LED display).
• Ensure the charging cable is securely connected to both the power bank and your device.
• Try a different output port on the power bank.
• Try a different charging cable for your device.
• Some devices may require a specific charging protocol; ensure compatibility.

Slow charging:

• Ensure you are using a fast-charging compatible cable and port (USB-C or designated USB-A).
• Verify that your device supports fast charging.
• Charging multiple devices simultaneously may reduce individual charging speeds.

9. Warranty and Support

ROMOSS products come with a standard warranty. For detailed warranty information, product support, or to register your product, please visit the official ROMOSS website or contact their customer service. Keep your purchase receipt as proof of purchase.

Official ROMOSS Website: www.romoss.com

For further assistance, you may also refer to the original PDF user manual.