ROMOSS PMT75 75000mAh 280W Portable Power Bank User Manual

1. Introduction

The ROMOSS PMT75 is a high-capacity 75000mAh portable power bank designed to provide powerful and fast charging for a wide range of devices, including laptops, tablets, phones, and game consoles. Featuring LiFePO4 battery technology and 280W Hyper Charge capability, it offers a reliable and durable power solution for both indoor and outdoor use. Its robust design and integrated LED light make it a versatile companion for various scenarios.

Overview of the ROMOSS PMT75 Power Bank highlighting its capacity, battery type, charging power, and port configuration.

2. Safety Information

• Do not disassemble, open, or shred the battery pack.
• Do not expose the power bank to heat or fire. Avoid storage in direct sunlight.
• Do not short-circuit the battery pack. Do not store battery packs indiscriminately in a box or drawer where they may short-circuit each other or be short-circuited by conductive materials.
• Do not subject the battery pack to mechanical shock.
• In the event of a battery leaking, do not allow the liquid to come into contact with the skin or eyes. If contact has been made, wash the affected area with copious amounts of water and seek medical advice.
• Keep the power bank clean and dry.
• Do not use any charger other than that specifically provided for use with the equipment.
• Do not leave a battery on prolonged charge when not in use.
• Battery performance may vary with temperature.
• Dispose of the power bank according to local regulations.

3. Package Contents

Please check the box for the following items:

• 1 x ROMOSS PMT75 Portable Power Bank
• 1 x User Manual
• 1 x Charging Cable

The 'What's in the Box' section from the product specifications.

4. Product Overview

The ROMOSS PMT75 features a stylish and sturdy design crafted from anodized aluminum, similar to materials used in high-end laptops, ensuring durability. It includes a convenient handle for easy portability.

Ports and Indicators

Detailed view of the charging ports and their output capabilities.

• Input Interfaces: Micro USB, USB Type-C (C1, C2), USB
• Output Interfaces: USB-A (A1, A2), USB Type-C (C1, C2)
• Digital Display: Shows remaining battery percentage and charging status.
• LED Lamp: Integrated LED light for emergency illumination or general lighting.

Key Features

• 75000mAh Capacity: High capacity for multiple device charges.
• 280W Hyper Charge: Supports powerful and fast charging.
• LiFePO4 Battery: EV-grade cells for ultimate safety and longer lifespan (up to 2500 cycles).
• Proactive Balancing Tech: Optimizes cell charging for extended battery life.
• Two-way Quick Charge: Fast charging for both the power bank and connected devices.
• Charge 4 Devices Simultaneously: Multiple output ports allow charging of up to four devices at once.
• Emergency Illumination: Built-in LED light with three brightness levels, providing up to 13 days of lighting.
• Ergonomic Handle Design: For easy and comfortable carrying.

5. Setup

Initial Power Bank Activation

To ensure optimal performance and activate the power bank battery, follow these steps upon first receiving the device:

Important notice for initial power bank activation.

1. When you receive the power bank, please recharge it to 100%.
2. Consume all the power of the fully charged power bank until it is completely drained.
3. Repeat steps 1 and 2 for 2-3 times. This process will activate the power bank battery for full capacity and performance.

6. Operating Instructions

Charging the Power Bank

Connect the power bank to a suitable power adapter using a compatible charging cable (USB Type-C recommended for fast charging). The digital display will show the charging progress. For the fastest recharge, use a 140W or higher fast charger. The power bank can be fully recharged in approximately 2 hours with a 140W charger.

Fast recharging capability of the ROMOSS PMT75.

Charging External Devices

Connect your devices to the power bank's output ports (USB-A or USB Type-C) using appropriate charging cables. The power bank supports charging up to four devices simultaneously. The ROMOSS Fit Charge Smart Charging Tech intelligently detects connected devices and delivers tailored current for fast and safe charging.

• 1-Port Output: C1: 140W, C2: 140W, A1/A2: 22.5W
• 2-Port Output: C1 + C2: 140W + 140W; C1 + A1/A2: 140W + 22.5W; C2 + A1/A2: 140W + 22.5W
• 3-Port Output: C1 + A1 + A2: 15W
• 4-Port Output: C1 + C2 + A1 + A2: 140W + 15W

The power bank's ability to charge up to four devices at once.

Using the LED Light

The integrated LED light can be activated for emergency illumination or general lighting. It features three levels of brightness and can provide light for up to 13 days on a full charge, making it ideal for power outages, study nights, or camping.

The ROMOSS PMT75's LED light functionality for various uses.

7. Maintenance

• Store the power bank in a cool, dry place away from direct sunlight and extreme temperatures.
• Avoid dropping or subjecting the power bank to heavy impacts.
• Clean the exterior with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
• For optimal battery health, fully charge and discharge the power bank at least once every three months if not in regular use.
• Keep ports free of dust and debris.

8. Troubleshooting

• Power bank not charging: Ensure the charging cable and adapter are securely connected and functioning. Try a different cable or adapter. Verify the power source is active.
• Devices not charging from power bank: Ensure the power bank has sufficient charge. Check that the charging cable is properly connected to both the power bank and the device. Try a different cable or port.
• Slow charging: Ensure you are using a fast-charging compatible cable and adapter for both the power bank and your devices. Some devices or cables may limit charging speed.
• LED light not working: Check the power bank's charge level. If the power bank is fully drained, the LED light may not function.

9. Specifications

Comprehensive specifications for the ROMOSS PMT75 Power Bank.

10. User Tips

• Always perform the initial activation steps (full charge, full discharge, repeat 2-3 times) to ensure your power bank's battery is fully optimized.
• For the fastest charging experience, use high-wattage USB-C PD (Power Delivery) chargers and cables that match the power bank's input capabilities.
• When charging multiple devices, prioritize the highest wattage ports (Type-C1/C2) for power-hungry devices like laptops.
• The digital display is your best indicator of remaining power; keep an eye on it to avoid unexpected power loss.
• Utilize the LED light feature for camping, emergencies, or as a convenient work light.

11. Warranty and Support

The ROMOSS PMT75 Portable Power Bank comes with a 1-year warranty from the date of purchase, covering manufacturing defects. Please retain your proof of purchase for warranty claims.

For technical support, warranty claims, or any questions regarding your product, please contact ROMOSS customer service through the official channels provided at the point of purchase or on the ROMOSS official website.