VANYUST S2122
VANYUST S2122 5000mAh Portable Charger User Manual
Model: S2122
1. Introduction
Thank you for choosing the VANYUST S2122 5000mAh Portable Charger. This compact and lightweight power bank is designed to provide convenient on-the-go charging for your electronic devices. Please read this manual carefully before use to ensure optimal performance and safety.

Image 1.1: The VANYUST S2122 5000mAh Portable Charger in blue, showcasing its sleek design.
2. Important Safety Information
To prevent damage to the device or injury to yourself or others, observe the following precautions:
- Do not expose the power bank to extreme temperatures, direct sunlight, or fire.
- Do not immerse the power bank in water or other liquids.
- Avoid dropping, hitting, or disassembling the device.
- Keep out of reach of children.
- Use only certified charging cables and adapters.
- The power bank features multiple safety protections including overcharge, overcurrent, overvoltage, and short circuit protection. However, always monitor charging processes.
- If the power bank becomes excessively hot, emits smoke, or shows any other abnormalities, discontinue use immediately.

Image 2.1: Diagram illustrating the internal high-density intelligence IC and multiple safety protections, including overcharge, overcurrent, overvoltage, and short current protection.
3. Product Overview
3.1 Package Contents
- VANYUST S2122 5000mAh Portable Charger
- USB-A to USB-C Charging Cable
- User Manual

Image 3.1: The VANYUST S2122 portable charger shown alongside its included USB-A to USB-C charging cable.
3.2 Device Layout
The VANYUST S2122 features a compact design with essential ports and indicators:
- LED Indicator Lights: Four small LED lights indicate the remaining battery capacity.
- USB-A Output Ports (x2): Used for charging external devices. Each port provides up to 5V/2.4A.
- USB-C Input Port: Used for recharging the power bank. Supports 5V/2.1A input. Note: This port is for input only and cannot charge external devices.
- Micro USB Input Port: Used for recharging the power bank. Supports 5V/2.1A input.

Image 3.2: Detailed view of the power bank's ports, indicating two USB-A output ports (5V/2.4A each), a Type-C input port (5V/2.1A), and a Micro USB input port (5V/2.1A).
4. Setup
4.1 Initial Charging of the Power Bank
Before first use, fully charge your VANYUST S2122 portable charger.
- Connect the provided USB-A to USB-C cable to a compatible USB wall adapter (not included) or a computer's USB port.
- Insert the USB-C end of the cable into the USB-C input port on the power bank. Alternatively, use a Micro USB cable (not included) with the Micro USB input port.
- The LED indicator lights will illuminate and blink to show the charging progress. All four lights will be solid when the power bank is fully charged.
Charging time may vary depending on the power source.
5. Operating Instructions
5.1 Charging Your Devices
The VANYUST S2122 can charge up to two devices simultaneously using its USB-A output ports.
- Connect your device's charging cable (e.g., USB-A to Lightning, USB-A to USB-C) to one of the USB-A output ports on the power bank.
- Connect the other end of the cable to your electronic device (smartphone, tablet, etc.).
- The power bank will automatically begin charging your device. The LED indicators will show the remaining battery level of the power bank.
- Once your device is fully charged, disconnect it from the power bank.

Image 5.1: A user charging a smartphone using the VANYUST S2122 portable charger, demonstrating its practical use.
5.2 Checking Battery Level
The four LED indicator lights on the power bank display the approximate remaining battery capacity:
- 4 LEDs: 75% - 100% capacity
- 3 LEDs: 50% - 75% capacity
- 2 LEDs: 25% - 50% capacity
- 1 LED: 0% - 25% capacity (recharge soon)
6. Maintenance
- Cleaning: Wipe the power bank with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
- Storage: Store the power bank in a cool, dry place away from direct sunlight and extreme temperatures. For long-term storage, it is recommended to charge the power bank to about 50-75% every three months to maintain battery health.
- Battery Care: To prolong the lifespan of the internal lithium polymer battery, avoid fully discharging it frequently.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Power bank not charging |
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| Device not charging from power bank |
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| Slow charging |
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8. Specifications
| Model Number | S2122 |
| Battery Capacity | 5000 mAh (Lithium Polymer) |
| USB-A Output | 2 x 5V/2.4A (Max total output 5V/2.4A) |
| USB-C Input | 5V/2.1A |
| Micro USB Input | 5V/2.1A |
| Dimensions | 3.54 x 2.51 x 0.44 inches (90 x 63.8 x 11.2 mm) |
| Weight | 4.6 ounces (130 grams) |
| Special Features | Fast Charging, Overcharge Protection, Overcurrent Protection, Overvoltage Protection, Short Circuit Protection, Graphene Temperature Control |
| Manufacturer | Shenzhen Vanyust Technology Limited |

Image 8.1: Visual representation of the VANYUST S2122's compact size and weight (103g / 3.63oz), comparing it to a standard credit card.
9. Warranty and Support
VANYUST products are designed and manufactured to the highest quality standards. For warranty information, technical support, or customer service inquiries, please contact VANYUST directly through their official channels or the retailer where the product was purchased.
Please retain your proof of purchase for warranty claims.
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