VIYISI G3015

VIYISI G3015 Power Bank User Manual

Model: G3015 | 30000 mAh 22.5W Fast Charging Portable Charger

1. Introduction

Thank you for choosing the VIYISI G3015 Power Bank. This device is designed to provide reliable and efficient portable charging for your electronic devices. With a large 30000 mAh capacity and 22.5W fast charging capability, it ensures your devices remain powered throughout your day, travels, or outdoor activities. This manual provides essential information on setting up, operating, maintaining, and troubleshooting your power bank. Please read it carefully before use.

VIYISI G3015 Power Bank main view

Image 1.1: Main view of the VIYISI G3015 Power Bank.

2. Setup

2.1 Package Contents

Upon unpacking, please verify that all items are present:

  • VIYISI G3015 Power Bank
  • USB-A to USB-C Charging Cable
  • Welcome Guide / User Manual
  • Storage Pouch (may vary by package)
Package contents of VIYISI G3015 Power Bank

Image 2.1: VIYISI G3015 Power Bank and included accessories.

2.2 Initial Charging of the Power Bank

Before first use, it is recommended to fully charge your VIYISI G3015 Power Bank.

  1. Connect a compatible charging cable to one of the power bank's input ports (Micro USB, Type-C, or Lightning).
  2. Connect the other end of the cable to a USB wall charger (not included). For faster charging of the power bank, a charger with an output of 18W or higher is recommended.
  3. The digital display will show the charging progress. The power bank is fully charged when the display shows "100%".
VIYISI G3015 Power Bank input ports: Micro USB, Type-C, Lightning

Image 2.2: The three input options (Micro USB, Type-C, Lightning) for recharging the power bank.

3. Operating Instructions

3.1 Charging Your Devices

The VIYISI G3015 Power Bank features multiple output ports to charge various devices simultaneously.

  1. Connect your device's charging cable to one of the power bank's output ports (USB 1, USB 2, USB 3, or Type-C).
  2. Connect the other end of the cable to your electronic device.
  3. The power bank will automatically begin charging your device. The digital display will show the remaining power.
  4. You can charge up to four devices concurrently using the available output ports.
VIYISI G3015 Power Bank charging multiple devices

Image 3.1: Charging multiple devices simultaneously with the power bank.

3.2 Fast Charging Functionality

The power bank supports up to 22.5W fast charging for compatible devices.

  • Ensure your device and charging cable support fast charging protocols (e.g., PD, QC, SCP).
  • The Type-C port and USB 2 port are capable of delivering fast charging output.
  • An intelligent sensing function automatically adjusts the output current and voltage to ensure stable and safe charging for your device.
VIYISI G3015 Power Bank demonstrating fast charging for phone and tablet

Image 3.2: Example of 22.5W fast charging capability.

3.3 Digital Display

The integrated digital display provides an accurate indication of the remaining battery percentage of the power bank, allowing you to monitor its charge level at a glance.

Close-up of VIYISI G3015 Power Bank digital display showing 100% charge

Image 3.3: Digital display showing remaining power.

4. Maintenance

4.1 Cleaning

To clean the power bank, use a soft, dry cloth. Avoid using harsh chemicals, abrasive cleaners, or liquids that could damage the device.

4.2 Storage

Store the power bank in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity. If storing for extended periods, it is advisable to charge the power bank to approximately 50-70% every three months to maintain battery health.

4.3 Battery Care

To prolong the lifespan of the internal lithium polymer batteries, avoid completely draining the power bank frequently and do not leave it fully charged for very long periods without use.

5. Troubleshooting

ProblemPossible CauseSolution
Device not charging from power bank.
  • Power bank battery is depleted.
  • Loose cable connection.
  • Incompatible cable or device.
  • Faulty port.
  • Recharge the power bank.
  • Ensure cables are securely connected.
  • Try a different cable or device.
  • Try a different output port on the power bank.
Power bank not recharging.
  • Input cable not connected properly.
  • Wall charger is not working or insufficient.
  • Faulty input port.
  • Check all input cable connections.
  • Try a different wall charger or power adapter (ensure it's 18W+ for optimal speed).
  • Try a different input port (Micro USB, Type-C, Lightning).
Slow charging of devices.
  • Device or cable does not support fast charging.
  • Multiple devices charging simultaneously.
  • Ensure your device and cable are fast-charge compatible.
  • Use the Type-C or USB 2 port for faster charging.
  • Charge fewer devices at once for maximum speed to a single device.
Digital display is blank or inaccurate.
  • Power bank is off or deeply discharged.
  • Temporary software glitch.
  • Connect the power bank to a charger to activate the display.
  • Fully charge and discharge the power bank once to recalibrate.

6. Specifications

FeatureDetail
ModelG3015
Battery Capacity30000 mAh / 96 Wh
Micro USB Input5V-2.0A / 9V-2.0A
Type-C Input5V-3.0A / 9V-2.0A
Lightning Input5V-2.0A / 9V-2.0A
USB 1/3 Output5V-3.0A
USB 2 Output5V-4.5A / 9V-2.0A / 12V-1.5A
Type-C Output5V-3.0A / 9V-2.22A / 12V-1.67A
Maximum Output Power22.5W
Dimensions16.5 x 8 x 3.1 cm (6.5" x 3.15" x 1.21")
Weight612 g (1.35 lbs)
Battery TypeLithium Polymer
ManufacturerDong guan Utopia-Originality Technology Co., Ltd
Country of OriginChina
VIYISI G3015 Power Bank specifications label

Image 6.1: Detailed product specifications.

7. Safety Information

Please adhere to the following safety guidelines to prevent damage to the product or personal injury:

  • Do not hit, drop, or disassemble the product.
  • Keep the product away from fire, high temperatures, water, and humid environments.
  • Do not allow children to use or play with this product without adult supervision.
  • Avoid exposing the power bank to direct sunlight for prolonged periods.
  • Do not attempt to modify or repair the device yourself. Contact customer support if service is required.
  • Dispose of the product responsibly according to local regulations for electronic waste.
Warning label for VIYISI G3015 Power Bank

Image 7.1: Important safety warnings.

8. Warranty and Support

For warranty information or technical support, please contact VIYISI customer service.

Please retain your proof of purchase for any warranty claims.