ROMOSS 75,000Mah 200W
ROMOSS Power Bank Station User Manual
Model: 75,000Mah 200W
Introduction
The ROMOSS Power Bank Station is a high-capacity portable power solution designed to meet diverse power needs for both home backup and outdoor activities. Featuring a robust LiFePO4 battery, multiple output ports, and a smart display, it provides reliable and safe power for a wide range of electronic devices.
Safety Information
- Do not expose the power station to extreme temperatures, direct sunlight, or high humidity.
- Avoid dropping, puncturing, or disassembling the device.
- Keep away from children and pets.
- Ensure proper ventilation during use and charging.
- Do not use if the device is damaged or shows signs of swelling.
- Use only the provided or certified charging cables.
- Do not operate near flammable gases or liquids.
Package Contents

Image: Contents of the ROMOSS Power Bank Station package, including the power station, a USB-C to USB-C cable, and the user manual.
- 1x ROMOSS 75,000mAh Power Station
- 1x Fast Charging USB-C to USB-C Cable
- 1x User Manual
Product Overview

Image: Front and side view of the ROMOSS Power Bank Station, highlighting its compact design and integrated handle.

Image: Close-up view of the power station's top panel, detailing the various input and output ports.
- AC Outlet (200W): For powering small household appliances and electronics.
- USB-C Outputs/Inputs (65W/100W): Two bidirectional USB-C ports for fast charging compatible devices and recharging the power station.
- USB Outputs (22.5W): Two standard USB-A ports for charging various USB-powered devices.
- Smart Digital Display: Shows real-time battery levels and charging status.
- Integrated LED Light: Multi-mode LED light for illumination in various scenarios.
- Portable Handle: Ergonomically designed for easy carrying.
Setup
- Initial Charge: Before first use, fully charge the power station using the provided USB-C to USB-C cable and a compatible power adapter (not included). The smart display will indicate charging progress.
- Power On/Off: Press and hold the power button on the top panel for a few seconds to turn the device on or off.
Operating Instructions
Charging Devices

Image: The power station simultaneously charging an iPad and a laptop, demonstrating its multi-device charging capability.
- USB-C/USB-A Charging: Connect your smartphone, tablet, laptop, or other USB-powered devices to the appropriate USB-C or USB-A output ports using their respective charging cables. The power station will automatically begin charging.
- AC Output: For devices requiring an AC power source (up to 200W), plug them into the AC outlet. Press and hold the AC/DC button for two seconds to activate or deactivate the AC output mode.
- The power station can charge up to 5 devices simultaneously.
Using the LED Light

Image: The power station with its LED light illuminated, showcasing its use for emergency lighting, study nights, and camping illumination.
- Press the LED light button to cycle through three brightness levels.
- Hold the LED light button to turn the light off.
- The LED light can provide illumination for up to 13 days when no other devices are being charged.
Maintenance
- Clean the power station with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Store in a cool, dry place away from direct sunlight and extreme temperatures.
- For long-term storage, charge the power station to approximately 50-70% every 3-6 months to maintain battery health.
- Avoid fully discharging the battery frequently to prolong its lifespan.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not charging from power station. | Power station battery is low or depleted. Cable is faulty or incompatible. Device requires more power than available. | Recharge the power station. Try a different cable. Check device power requirements against power station output. |
| AC outlet not working. | AC output not activated. Device power consumption exceeds 200W. | Press and hold the AC/DC button for 2 seconds to activate. Use devices under 200W. |
| Smart display not turning on. | Power station is off or battery is completely depleted. | Press the power button. Recharge the power station. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | 75,000Mah 200W |
| Battery Capacity | 75,000mAh (240Wh) |
| Battery Type | LiFePO4 |
| Cycle Life | Over 2500 charges |
| Max Total Output Power | 300W |
| AC Outlet Output | 200W |
| USB-C Output/Input | 65W / 100W (Max) |
| USB-A Output | 22.5W |
| Product Dimensions | 9.02 x 3.66 x 4.49 inches |
| Item Weight | 5.69 pounds |
| Special Features | Digital Display, Flashlight (3 brightness levels) |
Warranty and Support
For warranty information, technical support, or any inquiries regarding your ROMOSS Power Bank Station, please visit the official ROMOSS website or contact their customer service directly. Keep your purchase receipt for warranty claims.
Manufacturer: Jiangmen Romoss Technology Co., Ltd.
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