NOBIS N2931

NOBIS 65W 20000mAh Portable Charger User Manual

Model: N2931

1. Product Overview

The NOBIS 65W 20000mAh Portable Charger (Model N2931) is a high-capacity power bank designed for fast and efficient charging of various electronic devices. It features multiple ports, a digital display, and advanced safety protections.

NOBIS 65W 20000mAh Portable Charger in various colors

Image: The NOBIS 65W 20000mAh Portable Charger, showcasing its design and available colors.

Key Features:

  • 65W Fast Charging: Supports bidirectional fast charging (65W max output, 45W max input) with PD/QC protocols. Capable of charging a laptop to 45% in 30 minutes and fully recharging itself in 1.5 hours.
  • 20000mAh Large Capacity: Provides extended power for daily use and travel, capable of charging a smartphone 3-4 times, a tablet 2-3 times, and a laptop once.
  • 4-Port Simultaneous Charging: Equipped with two USB-A and two USB-C ports, allowing simultaneous charging of up to four devices.
  • Digital Display & Low-current Mode: Features a clear digital display for remaining power and a low-current mode for stable charging of sensitive devices like earbuds and smartwatches.
  • Multi-layer Safety Protection: Built-in protections against over-charge, over-discharge, over-voltage, over-current, short-circuit, and temperature fluctuations.

2. Safety Information

Please read and understand all safety instructions before using this product to prevent injury or damage.

  • Do not expose the power bank to extreme temperatures (above 60°C/140°F or below 0°C/32°F).
  • Avoid dropping, disassembling, or attempting to repair the device yourself.
  • Keep away from water, moisture, and flammable materials.
  • Use only certified charging cables and adapters.
  • Dispose of the power bank according to local regulations for electronic waste.
  • Do not use if the power bank is swollen, leaking, or damaged.

3. Setup

Package Contents:

Verify that all items are present in the package:

  • NOBIS 20000mAh/65W Power Bank (1 unit)
  • 3A Type-C to Type-C charging cable (30cm) (1 unit)
  • Instruction Manual (1 unit)

Product Diagram:

Familiarize yourself with the ports and indicators on your power bank.

Close-up of the power bank's digital display showing 100% charge

Image: Close-up view of the power bank's digital display, indicating a full charge (100%).

  • USB-C Ports (Input/Output): Two USB-C ports support both charging the power bank and charging other devices.
  • USB-A Ports (Output): Two USB-A ports for charging various devices.
  • Digital Display: Shows the remaining battery percentage.

4. Operating Instructions

Charging the Power Bank:

  1. Connect the provided USB-C to USB-C cable to one of the USB-C input ports on the power bank.
  2. Connect the other end of the cable to a compatible USB-C wall charger (not included) with a minimum 45W output for optimal charging speed.
  3. The digital display will show the charging status and current battery percentage. The power bank will be fully recharged in approximately 1.5 hours with a 45W input.

Charging Devices:

  1. Connect your device's charging cable to an available USB-A or USB-C output port on the power bank.
  2. Connect the other end of the cable to your device.
  3. The power bank will automatically begin charging your device. The digital display will show the remaining battery level.
  4. For low-current devices (e.g., earbuds, smartwatches), the power bank automatically adjusts to a stable low-current output to protect the device's battery.
Person holding the NOBIS power bank, demonstrating its portability

Image: A person holding the NOBIS power bank, illustrating its compact and portable design for on-the-go use.

5. Maintenance

  • Cleaning: Use a soft, dry cloth to clean the surface of the power bank. Do not use liquid cleaners or abrasive materials.
  • Storage: Store the power bank in a cool, dry place away from direct sunlight and extreme temperatures. For long-term storage, charge the power bank to approximately 50-75% every three months to maintain battery health.
  • Handling: Handle the power bank with care. Avoid dropping or subjecting it to strong impacts.

6. 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 (minimum 45W recommended for fast charging).
  • Try a different USB-C cable or wall charger.

Device Not Charging from Power Bank:

  • Check if the power bank has sufficient charge.
  • Ensure the charging cable is securely connected to both the power bank and your device.
  • Try a different port on the power bank.
  • Try a different charging cable for your device.

Digital Display Not Working:

  • If the display is completely off, the power bank might be fully discharged. Try charging it.
  • If the display is erratic, contact customer support.

7. Specifications

FeatureSpecification
Model NumberN2931
Battery Capacity20000 mAh
Max Output Power65W
Max Input Power45W
Input Ports2 x USB Type-C
Output Ports2 x USB Type-C, 2 x USB Type-A
Product Dimensions13.7 x 7 x 2.63 cm
Item Weight400 g
Special FeaturesAuto Shut-Off, Digital Display, Fast Charging, Over Charging Protection, Short Circuit Protection
Battery TypeNonstandard Battery (included)
ColorBlue

8. Warranty and Support

NOBIS products come with a standard manufacturer's warranty. For detailed warranty information, please refer to the warranty card included with your product or visit the official NOBIS website.

Customer Support:

If you encounter any issues or have questions regarding your NOBIS 65W 20000mAh Portable Charger, please contact our customer support team:

Please have your model number (N2931) and purchase details ready when contacting support.

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