1. Introduction
Thank you for choosing the NOBIS 20000mAh 45W USB C Power Bank. This portable battery pack is designed to provide high-speed charging for a wide range of devices, including smartphones, tablets, and laptops. With its massive capacity, two-way fast charging, and smart digital display, it's an ideal companion for travel and daily use. Please read this manual carefully before using the product to ensure safe and optimal performance.
2. Package Contents
Please check the package for the following items:
- 1 x NOBIS 45W Power Bank
- 1 x Charging Cable
- 1 x User Manual
- 1 x 1 Year Warranty Card
3. Product Features
- 45W PD High-Speed Charging: Features 45W fast charge and 30W rapid recharge technology. Charges iPhone 15 Pro from 0% to 60% in approximately 30 minutes.
- Charge 4 Devices Simultaneously: Equipped with 2 USB-A ports and 2 Type-C ports to power multiple devices at once.
- Two-way Fast Charging: Supports quick recharge of the power bank itself via the Type-C input port, taking approximately 2 hours with a 45W PD charger (not included).
- Smart Digital Display: An LED digital display shows the remaining power from 0% to 100% for easy monitoring. A green lightning icon indicates fast charging.
- Powerful 20000mAh Capacity: Sufficient capacity to charge a MacBook 14 (1.05 times), iPhone 15 (3.96 times), Samsung S22 Ultra (2.6 times), or iPad mini (3.83 times).
- Travel-Friendly: 74Wh capacity meets airline requirements for air travel.
- Wide Compatibility: Supports all fast charge protocols (AFC, FCP, SCP, PPS) and is compatible with Samsung, Android, iOS smartphones, tablets, laptops, mini speakers, Bluetooth headsets, cameras, and handheld game consoles. Also supports small current devices like AirPods.
- Safety Features: Includes superior heat dissipation structure and dynamic temperature management. Certified with PSE, WEEE, RoHS, CE, UL, FCC.
4. Specifications
| Attribute | Value |
|---|---|
| Model | N4520 |
| Battery Capacity | 20000mAh |
| Max Output | 45W |
| Input Interface | USB Type C |
| Output Interface | USB-A, USB-Type C |
| Shell Material | Plastic |
| Battery Type | Lithium Battery |
| Features | Digital Display, Two-way Quick Charge |
| Certification | PSE, WEEE, RoHS, CE, UL, FCC |
| Origin | Mainland China |
Port Configuration:
- Type C1: IN/OUT, 45W Max
- Type C2: IN/OUT, 45W Max
- USB 1: OUT, 30W Max
- USB 2: OUT, 30W Max
5. Setup
5.1 Initial Charging of the Power Bank
Before first use, it is recommended to fully charge your NOBIS power bank.
- Connect the provided charging cable (or another compatible USB-C cable) to one of the Type-C input/output ports (Type C1 or Type C2) on the power bank.
- Connect the other end of the cable to a compatible power adapter (a 45W PD charger or above is recommended for fastest charging, not included).
- The digital display will show the charging progress, indicating the battery percentage.
- The power bank is fully charged when the display shows 100%.
6. Operating Instructions
6.1 Charging Your Devices
The NOBIS power bank can charge up to four devices simultaneously using its USB-A and USB-C output ports.
- Connect your device's charging cable to the appropriate output port on the power bank (USB-A or Type-C).
- Connect the other end of the cable to your device.
- The power bank will automatically begin charging your device. The digital display will show the remaining power. A green lightning icon on the display indicates fast charging is active.
- To achieve 45W fast charging, ensure your device and cable support Power Delivery (PD) and are connected to a Type-C port.
6.2 Digital Display Usage
The integrated LED digital display provides real-time information about the power bank's status:
- Battery Percentage: Shows the remaining charge level from 0% to 100%.
- Fast Charging Indicator: A green lightning icon appears when a fast charging protocol is active.
6.3 Video Demonstration
7. Maintenance
- Keep the power bank away from extreme temperatures, direct sunlight, and humid environments.
- Avoid dropping or subjecting the power bank to strong impacts.
- Clean the exterior with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
- Store the power bank with approximately 50-75% charge if not used for extended periods to prolong battery life.
- Do not attempt to disassemble or modify the power bank. This will void the warranty and may cause safety hazards.
8. Troubleshooting
- Q: The power bank is not charging my device.
- A: Ensure the power bank has sufficient charge. Check that the charging cable is securely connected to both the power bank and your device. Try a different cable or port. Some devices may require a specific charging protocol; ensure compatibility.
- Q: The power bank is charging slowly.
- A: Verify that both your device and the cable support fast charging protocols (e.g., Power Delivery for 45W). Ensure you are using a Type-C port for high-speed charging. If charging multiple devices, the total output power is shared, which might reduce individual charging speeds.
- Q: The digital display is not working.
- A: Try connecting the power bank to a charger to see if it reactivates. If the issue persists, contact customer support.
- Q: The power bank gets warm during use.
- A: It is normal for power banks to generate some heat during charging or discharging, especially during fast charging. If it becomes excessively hot or emits smoke/odor, discontinue use immediately and contact customer support.
9. User Tips
- The digital display is very useful for knowing exactly how much charge is left, helping you plan your recharges effectively.
- Its compact size makes it highly portable and convenient for travel, easily fitting into bags without taking up much space.
- For optimal fast charging, always use high-quality, compatible USB-C to USB-C cables with your devices.
- When charging the power bank itself, using a 45W PD wall charger will significantly reduce recharge time.
10. Frequently Asked Questions
- Q: Is the power bank safe for air travel?
- A: Yes, with a capacity of 74Wh, it meets most airline requirements for carry-on luggage. Always check with your specific airline for their latest regulations.
- Q: Can I charge a laptop with this power bank?
- A: Yes, the 45W Power Delivery (PD) output via the Type-C ports is sufficient to charge many USB-C compatible laptops, such as a MacBook 14 (approximately 1.05 charges).
- Q: What kind of charger should I use to recharge the power bank?
- A: For the fastest recharge, use a 45W Power Delivery (PD) compatible wall charger with a USB-C cable. Lower wattage chargers will also work but will take longer.
- Q: Does it support pass-through charging?
- A: The manual does not explicitly state pass-through charging. For optimal performance and battery longevity, it is generally recommended to fully charge the power bank before using it to charge other devices.
11. Warranty and Support
The NOBIS 20000mAh 45W USB C Power Bank comes with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use.
For warranty claims, technical support, or any questions regarding your product, please refer to the contact information provided on your warranty card or the seller's official support channels.
Please retain your proof of purchase for warranty validation.