NOBIS 90W 20000mAh Power Bank User Manual

1. Introduction

Thank you for choosing the NOBIS 90W 20000mAh Power Bank. This portable power bank is designed to provide high-speed charging for a wide range of devices, including laptops, smartphones, and tablets, with its dual USB-C PD 3.0 and multiple output ports. It features a robust protection system and a convenient low current mode for sensitive electronics. Please read this manual carefully before use to ensure optimal performance and safety.

2. Important Safety Instructions

When using this product, basic precautions should always be followed to reduce the risk of fire, electric shock, and injury to persons, including the following:

• Store the product in a cool and dry place.
• Do not store the product in hot or humid environments.
• Use of a power supply or charger not recommended or sold by the product manufacturer may result in a risk of fire or injury to persons.
• Operating temperature should be between 0°C and 45°C (32°F to 113°F).
• Do not disassemble the product. Take it to a qualified service person when service or repair is required. Incorrect reassembly may result in a risk of fire or injury to persons.
• If the product is not used for long periods of time, you should charge and discharge it once every three months.
• When charging a device, the product may feel warm; this is a normal operating condition and should not be cause for concern.
• In normal conditions, the battery performance will decline over several years.
• Do not dispose of the product in heat or fire.
• Do not clean the product with harmful chemicals or detergents.
• Misuse, dropping, or excessive force may cause product damage.
• When disposing of secondary cells or batteries, keep cells or batteries of different electrochemical systems separate from each other.

Please follow the above safety instructions; otherwise, it may cause fire, electric shock, damage, or other hazards.

3. Product Overview

The NOBIS 90W 20000mAh Power Bank is a versatile portable charger equipped with multiple ports and advanced charging technologies. It features a sleek design with a smart digital display and a convenient detachable lanyard.

Key Features:

• 90W Ultra Fast Charging: Supports PD3.0/QC4.0 for rapid charging of laptops, phones, and tablets.
• 20000mAh High Capacity: Provides extended power for multiple charges.
• 4 Simultaneous Ports: Includes 2 USB-C (PD 3.0) and 2 USB-A ports for charging up to four devices at once.
• Low Current Mode: Specifically designed for charging low-power devices like Bluetooth earbuds and smartwatches.
• Smart Digital Display: Shows accurate battery percentage and charging status.
• Multiple Protection System: Safeguards against over-voltage, overcharging, overheating, over-current, and short circuits.
• Detachable Lanyard: For easy carrying and versatility.

Image: NOBIS 90W 20000mAh Power Bank with detachable lanyard.

Image: Detachable lanyard features (braided tape, metal buckle, DIY versatility) and attached USB-C cable for fast charging.

Image: Portable lanyard, durable braided cable, and DIY versatility features, along with product dimensions (5.39x2.76x1.13 in).

4. Setup and Initial Charging

Charging the Power Bank:

1. Connect a compatible USB-C charger to one of the Type C1 or C2 input ports on the power bank.
2. The power bank supports up to 65W Max input for fast recharging. A full recharge can take approximately 2 hours and 30 minutes.
3. The digital display will show the charging progress.

Image: Two Ways Fast Charging: 65W Max Input (fully recharges in 2h30min) and 90W Max Output.

5. Operating Instructions

Charging Your Devices:

1. Connect your device to one of the available output ports (USB-C1, USB-C2, USB-A1, or USB-A2) using a compatible charging cable.
2. The power bank will automatically detect your device and begin charging.
3. The digital display will show the power bank's remaining battery percentage.
4. The power bank can charge up to 4 devices simultaneously. Note that for safety, charging multiple devices at once automatically reduces power per port and slows charging. For maximum speed, it is recommended to charge only one device at a time.

Image: Powering up 4 devices simultaneously (USB-C1/C2 IN/OUT 65W Max/90W Max, USB-A1/A2 OUT 22.5W Max).

Image: Power for 4 Devices Max at Once, showing a laptop, tablet, phone, and earbuds charging.

Image: How to Use the Attached USB-C GoCord: Pull Down the USB-C Cable, Charge, Recharge.

Trickle Charging Mode:

This mode is ideal for charging low-current devices such as Bluetooth earbuds, smart bands, or smartwatches, providing better protection for these devices.

1. Activate: Double-click the power button. The LED indicator will start cycling.
2. Usage: Connect your low-current device to any output port.
3. Exit: Double-click the power button again. The cycling LED indicator will switch back to the normal power display.

Image: Smart Digital Display showing General Mode and Trickle Charging Mode, with instructions for activating trickle charging.

Digital Display Indicators:

• Green Sign: Indicates fast charging is active.
• Percentage Display: Indicates normal charging or remaining battery level.
• Character Cycle: Indicates trickle charging mode is active.

6. Maintenance

• Keep the power bank clean and dry. Wipe with a soft, dry cloth. Do not use harsh chemicals or detergents.
• Store in a cool, dry place away from direct sunlight and extreme temperatures.
• If the power bank is not used for extended periods (e.g., 3 months or more), charge and discharge it fully at least once every three months to maintain battery health.
• Avoid dropping the power bank or subjecting it to excessive force.

7. Troubleshooting

• Device not charging: Ensure the power bank is sufficiently charged. Check that the charging cable is securely connected to both the power bank and your device. Try a different cable or port.
• Slow charging: Ensure your device and cable support fast charging protocols. When charging multiple devices, the output power per port may be reduced. For fastest charging, charge one device at a time.
• Power bank not recharging: Ensure the charging adapter is working and properly connected to the power bank's USB-C input.
• Power bank feels warm: It is normal for the power bank to become warm during charging or discharging, especially during high-power operations. If it becomes excessively hot, disconnect it and allow it to cool down.

8. Specifications

Image: 90W Ultra Fast charging for MacBook Air 13" (56% in 30min) and iPhone 17 (67% in 30min).

Image: 20000mAh capacity examples (1.0 MacBook Air 13" charges, 1.7 iPad Pro 11" charges, 2.5 iPhone 17 Pro Max charges, 2.7 Samsung S25 Ultra charges).

Image: Wide compatibility for Laptops (ThinkPad, MacBook, Dell), Phones (iPhone 8-17/Air Series, Galaxy S8-S25 Series), and Pads (iPad Pro/Air/Mini, Galaxy Tab A).

Image: 20000mAh Power Bank Power For Days, showing charge counts for iPhone 17 Pro Max (2.6), iPhone 17 (3.3), Samsung S25 Ultra (2.7), iPad Pro (2.6).

Image: 1-Port Input (Type C1/C2 65W Max), 1-Port Output (Type C1/C2 90W Max, USB A1/A2 27W Max), Multi Ports Output (Type C1+C2 20W Max, USB A1+A2 20W Max). Note: For safety, charging multiple devices at once automatically reduces power per port and slows charging. For maximum speed, recommended to charge only one device at a time.

9. User Tips

• The power bank is compliant with air travel standards, making it an ideal companion for flights and travel.
• Utilize the low current mode for delicate devices like smartwatches and earbuds to ensure safe and optimized charging.
• The multiple protection system ensures your devices are safe from common electrical issues, providing peace of mind during charging.
• For the fastest charging experience, try to charge one high-power device at a time using the appropriate USB-C port.

Image: Office Power scenario with two laptops and a phone charging from the power bank.

Image: Hiking scenario with the power bank attached to a backpack.

Image: Outdoor Power scenario with a laptop and phone charging on a picnic blanket.

10. Warranty and Support

For warranty information or technical support, please refer to the product packaging or contact your retailer. Keep your purchase receipt as proof of purchase.

11. Regulatory Information

FCC Statement:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Warning: Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

NRCan Statement:

This device complies with Industry Canada license-ICES-003. Operation is subject to the following two conditions: (1) This device may not cause interference, and (2) This device must accept any interference, including interference that may cause undesired operation of the device.

This device has been tested with standard(s): 10 CFR PT 430 Sub.part B-App Y Uniform Test Method for Measuring the Energy Consumption of Battery Charging System Energy Performance Of Battery-Charging Systems And Uninterruptible Power supplies [CSA C381.2:2018 Ed.2].

Recycling Information:

It is strictly forbidden to dispose of this equipment with ordinary trash. It must be recycled. This symbol indicates that the product shall not be treated as regular domestic trash, and must be delivered to a recycling center that is capable of recycling electronic and electrical equipment.