1. Introduction
This manual provides essential instructions for the safe and efficient use of your SafeCare Romoss SOLO 4 8000mAh Power Supply. Please read this manual thoroughly before using the device and retain it for future reference.
Safety Information
- Do not expose the power bank to extreme temperatures, direct sunlight, or fire.
- Avoid dropping, disassembling, or attempting to repair the device yourself.
- Keep the power bank away from water and other liquids.
- Use only certified charging cables and adapters.
- Keep out of reach of children.
2. Package Contents
Please check the package for the following items:
- SafeCare Romoss SOLO 4 8000mAh Power Supply
- USB Charging Cable
- User Manual (this document)
3. Product Overview
The SafeCare Romoss SOLO 4 features an 8000mAh Lithium Ion battery, two USB output ports, and a power indicator for convenient charging of your mobile devices.

Figure 1: Side view of the SafeCare Romoss SOLO 4 Power Supply, highlighting the two USB output ports, micro USB input port, and LED power indicators.

Figure 2: Top-down view of the SafeCare Romoss SOLO 4 Power Supply, shown alongside its included USB charging cable.
Key Features:
- Two USB Ports: Allows charging of two devices simultaneously.
- Power Indicator: LED lights display the remaining battery level.
- Fast Charge: Designed for efficient power delivery.
- Easy Handling: Compact and portable design.
4. Setup
Initial Charging of the Power Bank
Before first use, fully charge your SafeCare Romoss SOLO 4 Power Supply.
- Connect the smaller end of the provided USB charging cable to the micro USB input port on the power bank.
- Connect the standard USB end of the cable to a USB wall adapter (not included) or a computer's USB port.
- The LED power indicators will illuminate and blink to show the charging progress. All four LEDs will be solid when the power bank is fully charged.
5. Operating Instructions
Charging Your Devices
The power bank is compatible with smartphones and other digital products requiring a DC5V input.
- Use your device's original USB charging cable or a compatible cable.
- Connect the standard USB end of the cable to one of the two USB output ports on the power bank.
- Connect the other end of the cable to your device's charging port.
- The power bank will automatically begin charging your device. The LED indicators will show the power bank's remaining charge.
- Disconnect your device once it is fully charged.
Checking Battery Level
Press the power button once to activate the LED power indicators. Each illuminated LED typically represents approximately 25% of the battery capacity.
- 1 LED: 0-25% charge remaining
- 2 LEDs: 25-50% charge remaining
- 3 LEDs: 50-75% charge remaining
- 4 LEDs: 75-100% charge remaining
6. Maintenance
Cleaning
Wipe the power bank with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
Storage
Store the power bank in a cool, dry place away from direct sunlight and extreme temperatures. For long-term storage, it is recommended to charge the power bank to about 50-75% every three months to maintain battery health.
Battery Care
To prolong the lifespan of the Lithium Ion battery, avoid fully discharging the power bank frequently. Recharge it when the battery level is low.
7. Troubleshooting
- Power bank not charging:
- Ensure the charging cable is securely connected to both the power bank and the power source.
- Try a different USB cable or wall adapter.
- Verify the power source is active.
- Device not charging from power bank:
- Check if the power bank has sufficient charge (refer to LED indicators).
- Ensure the device's charging cable is properly connected to both the power bank and the device.
- Try a different USB output port on the power bank.
- Test with a different charging cable or device to rule out cable/device issues.
- Slow charging:
- Ensure you are using a high-quality charging cable.
- Some devices may charge slower if they are in active use while charging.
8. Specifications
| Brand | SafeCare |
| Model | SOLO 4 |
| Battery Capacity | 8000 mAh |
| Battery Cell Composition | Lithium Ion |
| Number of USB Ports | 2 |
| Input Voltage | 5 Volts |
| Compatible Devices | Smartphones, other digital products with DC5V input |
| Special Features | Easy Handling, Fast Charging, Power Indicator, Safe for Device Battery, Two USB Ports |
| Item Weight | 310 g |
| Dimensions | 20.5 x 10.2 x 3.4 cm (Package Dimensions) |
9. Warranty and Support
For warranty information and customer support, please refer to the documentation provided with your purchase or contact the seller/manufacturer directly. Keep your proof of purchase for any warranty claims.