1. Introduction
Thank you for choosing the VOONI Stone Power Bank S32. This portable charger is designed to provide convenient power for your mobile devices on the go. Its compact design and reliable performance make it an ideal companion for daily use and travel. Please read this manual carefully to ensure proper use and maintenance of your power bank.
2. Safety Information
- Do not expose the power bank to extreme temperatures, direct sunlight, or fire.
- Avoid dropping, disassembling, or attempting to repair the device yourself.
- Keep the power bank away from water and other liquids.
- Use only certified charging cables and adapters.
- Keep out of reach of children.
- Dispose of the power bank responsibly according to local regulations.
3. Package Contents
- VOONI Stone Power Bank S32
- USB Charging Cable (for charging the power bank)
- User Manual
4. Product Overview
Familiarize yourself with the components of your VOONI Stone Power Bank S32.

Figure 4.1: The VOONI Stone Power Bank S32 in dark grey, featuring a smooth, stone-like finish. Visible are the USB-A output port, the Micro-USB input port, and a small circular power button on the top surface. This image highlights the compact and ergonomic design of the power bank.

Figure 4.2: Two VOONI Stone Power Banks, one in a blue-grey shade and another in dark grey, resting side-by-side. The image clearly shows the "OUT" label next to the USB-A port (for charging devices) and the "IN" label next to the Micro-USB port (for charging the power bank itself). A small "vooni" branded loop is also visible on one of the units.

Figure 4.3: The VOONI Stone Power Bank S32 in dark grey, positioned next to its white retail packaging. The packaging displays the "vooni" logo and "Stone Powerbank 10 400 mAh" text, indicating its capacity. This image provides a view of the product as it would appear in its original packaging.
Key Components:
- USB-A Output Port: Used to charge your mobile devices.
- Micro-USB Input Port: Used to charge the power bank itself.
- Power Button: Activates the power bank and checks battery level.
- LED Indicator Lights: Display the remaining battery capacity of the power bank.
5. Setup: Charging the Power Bank
Before using your VOONI Stone Power Bank S32 for the first time, it is recommended to fully charge it.
- Connect the supplied USB charging cable to the Micro-USB input port on the power bank.
- Connect the other end of the USB cable to a USB wall adapter (not included) or a computer's USB port.
- The LED indicator lights will illuminate to show the charging status. When all lights are solid, the power bank is fully charged.
- Disconnect the cable once charging is complete.
Note: Charging times may vary depending on the power source.
6. Operating: Charging Your Devices
To charge your mobile phone, tablet, or other USB-powered devices:
- Connect your device's charging cable to the USB-A output port on the power bank.
- Connect the other end of the cable to your device.
- Press the power button on the power bank to initiate charging. The LED indicators will light up to show the power bank's remaining charge.
- Your device should begin charging.
- Once your device is fully charged, or when you wish to stop charging, disconnect the cable. The power bank will automatically turn off after a short period of inactivity.
Note: If your device requires a specific charging current, ensure compatibility. The power bank may automatically shut off if the current draw is too high or too low for an extended period.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the power bank. 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.
- Battery Care: For optimal battery life, fully charge the power bank at least once every three months, even if not in use.
8. 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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9. Specifications
| Model | S32 |
| Brand | VOONI |
| Dimensions | 12 x 6 x 2.5 cm |
| Weight | 123 g |
| Battery Type | Lithium Ion |
| Input | Micro-USB, 5V |
| Output | USB-A, 5V |
| Compatible Devices | Android, iPhone, and other USB-powered devices |
10. Warranty and Support
VOONI products are designed and manufactured to the highest quality standards. This product is covered by a limited warranty from the date of purchase. For detailed warranty information, please refer to the warranty card included with your product or visit the official VOONI website.
For technical support, troubleshooting assistance, or to inquire about warranty claims, please contact VOONI customer service through the contact information provided on the official website or your purchase platform.
Please retain your proof of purchase for warranty purposes.




