1. Nhanganyaya
Thank you for choosing the 4smarts VoltHub Pro 20000 mAh Power Bank. This device is designed to provide portable power for your mobile devices, ensuring you stay connected on the go. This manual provides essential information for safe and efficient use of your power bank.

Image 1.1: The 4smarts VoltHub Pro Power Bank, showcasing dhizaini yayo inoyevedza.
2. Safety Information
- Usafumure bhangi remagetsi kune tembiricha yakanyanyisa, zuva rakananga, kana moto.
- Dzivisa kudonhedza, kupatsanura, kana kuedza kugadzirisa mudziyo wega.
- Chengetedza bhangi remagetsi kure nemvura uye zvimwe zvinwiwa.
- Shandisa chete certified kuchaja tambo uye adapters.
- Chengetedza pasingasvikirwi nevana.
- Rasa bhangi remagetsi zvine hunyanzvi maererano nemitemo yenzvimbo.
3. Package Zviri mukati
Ndokumbira utarise pasuru yezvinhu zvinotevera:
- 4smarts VoltHub Pro 20000 mAh Power Bank
- USB-C kune USB-C Yekuchaja Cable
- Kutakura Pouch
- User Manual

Image 3.1: Contents of the 4smarts VoltHub Pro Power Bank package, including the power bank, cable, pouch, and manual.
4. Chigadzirwa Pamusoroview
Familiarize yourself with the ports and indicators on your 4smarts VoltHub Pro Power Bank:

Mufananidzo 4.1: Pedyo-up view of the power bank's ports and digital display.
- OUT1 (USB-A Port): Output port for charging devices.
- OUT2 (USB-A Port): Output port for charging devices.
- IN1 (USB-C Port): Input port for charging the power bank, also supports output.
- IN2 (USB-C Port): Input port for charging the power bank, also supports output.
- Dhijitari Display: Inoratidza chikamu chebhatiri chasaratage.
- Bhatani reSimba: Press once to check battery level or activate charging.
5. Setup
5.1 Kutanga Kuchaja
Before first use, fully charge your 4smarts VoltHub Pro Power Bank. Connect the included USB-C cable to one of the IN (USB-C) ports on the power bank and the other end to a suitable USB wall charger (not included). The digital display will show the charging progress. Once it reaches 100%, the power bank is fully charged and ready for use.
6. Operating Instructions
6.1 Kuchaja Zvishandiso Zvako
- Connect your device's charging cable to one of the OUT (USB-A) ports or IN (USB-C) ports on the power bank.
- Unganidza mumwe mugumo wekambo kune yako kifaa.
- Bhangi remagetsi rinotanga kuchaja mudziyo wako otomatiki. Kana zvisina kudaro, tinya bhatani rekudzima kamwe chete.
- The digital display will show the power bank's remaining battery level.
6.2 Kuchajazve Power Bank
- Connect the included USB-C cable or another compatible USB-C cable to one of the IN (USB-C) ports on the power bank.
- Batanidza rimwe divi retambo kune charger yeUSB wall kana USB port yekombuta.
- Chiratidziro chedhijitari chicharatidza chikamu chekuchajatage, indicating the power bank is being recharged.
6.3 Kupfuura-Nekuchaja
The 4smarts VoltHub Pro supports pass-through charging, allowing you to charge both the power bank and your connected devices simultaneously. When the power bank is connected to a power source, it will first charge your connected devices and then recharge itself.

Image 6.1: Diagram illustrating the pass-through charging feature, where the power bank charges itself and a connected device simultaneously.
6.4 Bhatiri Level Indicator
The integrated digital display shows the precise percentage of remaining battery charge, allowing you to monitor the power bank's status at a glance.
6.5 Approximate Charging Capacity
The 20000 mAh capacity provides multiple charges for various devices:

Image 6.2: Graphic showing approximate charge cycles for various devices, such as Samsung Galaxy S21 (about 3.0 charges), iPhone 12 (about 4.0 charges), and iPad Pro 11" (about 1.5 charges).
7. Kuchengeta
- Geza bhangi remagetsi nemucheka wakapfava, wakaoma. Usashandise makemikari ane hasha kana abrasive zvinhu.
- Chengetedza bhangi remagetsi munzvimbo inotonhorera, yakaoma kana isiri kushandiswa.
- For optimal battery life, fully charge the power bank at least once every three months if stored for extended periods.
8. Kugadzirisa matambudziko
- Power bank isiri kubhadharisa: Ensure the charging cable is securely connected to both the power bank's IN port and the power source. Try a different cable or wall adapter.
- Mudziyo usingachaji kubva kubhangi remagetsi: Ensure the cable is securely connected to both the power bank's OUT/IN port and your device. Press the power button on the power bank. Check if the power bank has sufficient charge.
- Kuchaja kunononoka: Ensure you are using a compatible cable and a high-quality wall adapter. Some devices may charge slower due to their input requirements.
9. Zvinotsanangurwa
| Feature | Tsanangudzo |
|---|---|
| Model Name | VoltHub Pro |
| Brand | 4smarts |
| Battery Capacity | 20000 mAh |
| Kuumbwa kwebhatiri | Lithium-polymer |
| Nhamba Yemabhatiri | 1 (inosanganisirwa) |
| Voltage | 5 Volts |
| Reusability | Rechargeable |
| Inokurudzirwa Zvishandiso | Smartphone |
| Bhatiri Weight | 332 magiramu |
10. Warranty uye Tsigiro
The 4smarts VoltHub Pro Power Bank comes with a two-year warranty against manufacturing defects. For warranty claims or technical support, please contact your retailer or the official 4smarts support channels.