Introduction
The NOBIS 65W 20000mAh Power Bank (Model N2931) is a high-capacity portable charger designed for fast and efficient charging of various electronic devices, including laptops, smartphones, and tablets. Featuring a 20000mAh battery, 65W Power Delivery (PD) capability, and four versatile ports (2 USB-C and 2 USB-A), this power bank ensures your devices stay powered on the go. Its intelligent digital display provides real-time battery status, and multiple safety protections ensure reliable operation.
Setup
1. Initial Charging of the Power Bank
Before first use, fully charge the power bank. Connect a compatible USB-C charger (up to 65W) to one of the USB-C input/output ports. The digital display will show the charging progress. A full charge typically takes approximately 2.0 hours with a 45W input.
Image: The power bank being recharged via a 45W adapter, illustrating its two-way fast charging capability.
2. Understanding the Digital Display
The integrated LED display shows the current battery percentage. When charging devices, it may also indicate the charging status.
Image: A close-up of the NOBIS Power Bank, highlighting its digital display and the four charging ports.
Operating Instructions
1. Charging Devices
Connect your device to one of the available USB-C or USB-A ports using a compatible charging cable. The power bank will automatically detect the device and begin charging. For optimal fast charging, use the USB-C ports with Power Delivery (PD) compatible devices, such as laptops and modern smartphones.
Image: A user charging both a laptop and a smartphone simultaneously with the NOBIS Power Bank, demonstrating its fast charging capabilities for various devices.
2. Simultaneous Charging
The power bank features 2 USB-C and 2 USB-A ports, allowing you to charge up to four devices concurrently. The total output power will be distributed among the connected devices.
Image: The NOBIS Power Bank connected to and charging multiple devices, including a laptop, smartphone, and wireless earbuds, illustrating its multi-device charging capability.
3. Two-Way Fast Charging
The USB-C ports support two-way fast charging, meaning they can both charge the power bank rapidly and deliver high-speed power to your devices.
Image: The power bank providing 65W output to a smartphone, demonstrating its high-speed charging capability for connected devices.
4. Trickle Charging Mode (Low Current Mode)
For charging low-power devices like Bluetooth headphones, smartwatches, or fitness trackers, double-click the power button to activate Trickle Charging Mode. This mode provides a gentler, optimized charge to protect delicate electronics. The display will show a specific icon (e.g., a small current symbol) to indicate this mode is active. Double-click again to exit.
Image: The power bank's digital display indicating the activation of Trickle Charging Mode, suitable for low-power devices.
Maintenance
1. Cleaning
Wipe the power bank with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials.
2. Storage
Store the power bank in a cool, dry place away from direct sunlight, extreme temperatures, and humidity.
3. Battery Care
To prolong battery life, fully charge the power bank at least once every three months if not in regular use. Avoid completely draining the battery frequently.
Troubleshooting
- Power Bank Not Charging: Ensure the charging cable and wall adapter are functional and properly connected. Verify the wall adapter provides sufficient power (e.g., 45W or 65W for fast charging). Try a different USB-C port or cable.
- Device Not Charging from Power Bank: Ensure the power bank has sufficient charge. Check if the charging cable is securely connected to both the power bank and the device. Try a different port or cable. If charging a low-power device, ensure Trickle Charging Mode is activated.
- Slow Charging: Ensure your device and cable support fast charging protocols (e.g., Power Delivery for USB-C). Using multiple ports simultaneously may reduce the charging speed for individual devices.
- Digital Display Not Working: Press the power button to activate the display. If the display remains off, the power bank might be completely discharged or require service.
Safety Protections
The power bank is equipped with 6-way safety protection, including overcurrent, overcharge, short circuit, high temperature, over-discharge, and over-voltage protection. If an issue occurs, the power bank may automatically shut down to prevent damage.
Image: An illustration detailing the six comprehensive safety protection mechanisms integrated into the NOBIS Power Bank.
Specifications
| Feature | Detail |
|---|---|
| Brand | NOBIS |
| Model Name | NOBIS 65W 20000mAh Power Bank (N2931) |
| Battery Capacity | 20000mAh |
| Battery Type | Lithium Polymer |
| Input (USB-C) | Up to 65W (Two-way Fast Charging) |
| Output (USB-C) | Up to 65W (Power Delivery) |
| Output (USB-A) | Up to 30W |
| Number of Ports | 4 (2 x USB-C, 2 x USB-A) |
| Voltage | 5 Volts |
| Amperage | 3 Amperes |
| Dimensions (L x W x H) | 13.7 x 7 x 2.6 cm (5.39 x 2.76 x 1.02 inches) |
| Weight | 400 Grams (0.88 lbs) |
| Safety Features | Overcurrent, Overcharge, Short Circuit, High Temperature, Over-discharge, Over-voltage Protection |
| Compatibility | Laptops, Smartphones, Tablets, Gaming Consoles, Low-power devices (e.g., Bluetooth headphones, smartwatches) |
Image: An overview of the NOBIS Power Bank's universal compatibility, listing various laptops, smartphones, tablets, and other devices it can charge.
Warranty
The NOBIS 65W 20000mAh Power Bank comes with a 3-year manufacturer's warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims.
Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact NOBIS customer support through the retailer's platform or the official NOBIS website. Provide your product model (N2931) and proof of purchase for faster service.
