1. Introducció
Thank you for choosing the cellularline Power Bank Thunder 20000. This portable power bank is designed to provide reliable and fast charging for your mobile devices, including the latest iPhone models, thanks to its Power Delivery 20W technology. Its compact design, enabled by 21700 cylindrical cells, ensures excellent portability. Please read this manual carefully before using the product to ensure safe and optimal performance.
2. Informació de seguretat
To prevent damage to the device or injury to yourself or others, please observe the following safety precautions:
- No exposeu el banc d'energia extern a temperatures extremes (superiors a 45 °C o inferiors a 0 °C), a la llum solar directa ni a una humitat elevada.
- No desmunteu, modifiqueu ni intenteu reparar el dispositiu. Això anul·larà la garantia i pot causar danys.
- Mantingueu el banc d'energia lluny de l'aigua i altres líquids.
- Do not drop, puncture, or apply excessive force to the device.
- Use only certified cables and chargers for charging the power bank and your devices.
- Mantenir fora de l'abast dels nens.
- Desfeu-vos del banc d'energia de manera responsable d'acord amb la normativa local. No el llenceu a les escombraries domèstiques.
3. Contingut del paquet
The cellularline Power Bank Thunder 20000 package includes:
- 1 x cellularline Power Bank Thunder 20000 (Portable Charger)
- 1 x cable USB-C a USB-C
- 1 x manual d'instruccions
4. Producte acabatview
Familiarize yourself with the components of your Power Bank Thunder 20000:

Figura 4.1: Davant view of the cellularline Power Bank Thunder 20000, showcasing its sleek blue design and LED indicator strip.
- USB-C Input/Output Port (20W PD): Located at one end of the power bank, this versatile port supports Power Delivery for fast charging both the power bank itself and compatible devices.
- USB Output Port (18W): Located on the side, this standard USB-A port provides 18W output for charging a wide range of devices.
- LED Charge Indicator Lights: A series of small LED lights on the top surface indicate the remaining battery level and charging status.
- Botó d'encesa: A small button near the LED indicators, used to check battery status or initiate charging.

Figura 4.2: Primer pla view highlighting the 20W PD USB-C input/output port and the 18W USB output port, demonstrating the ability to charge two devices simultaneously.

Figura 4.3: Illustration of the LED charge indicator lights, showing how 1 to 4 illuminated dots correspond to battery levels from 1%-25% up to 76%-100%.

Figura 4.4: Image emphasizing the soft-touch material of the power bank's casing, providing a comfortable grip.
5. Configuració
Before first use, it is recommended to fully charge your power bank.
- Connecteu el cable USB-C a USB-C proporcionat al port USB-C del banc d'alimentació.
- Connect the other end of the USB-C cable to a compatible USB-C wall charger (not included) or a computer's USB-C port. For fastest charging, use a Power Delivery compatible charger.
- 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.
6. Instruccions de funcionament
The Power Bank Thunder 20000 can charge two devices simultaneously.

Figura 6.1: The power bank connected to an iPhone via USB-C, illustrating the 20W Power Delivery fast charging capability.
6.1 Charging a Single Device
- Connect your device's charging cable to either the USB-C port or the USB-A port on the power bank.
- Connecteu l’altre extrem del cable al dispositiu.
- The power bank will automatically begin charging your device. The LED indicators will show the power bank's remaining battery level.
6.2 Charging Two Devices Simultaneously
- Connect the first device's charging cable to the USB-C port on the power bank.
- Connect the second device's charging cable to the USB-A port on the power bank.
- Connect the other ends of both cables to your respective devices.
- Both devices will charge simultaneously. Note that the total output power will be shared between the two ports.
6.3 Comprovació del nivell de la bateria
Press the power button once to check the remaining battery level of the power bank. The LED indicators will light up to show the current charge:
- 1 LED: 1% - 25%
- 2 LEDs: 26% - 50%
- 3 LEDs: 51% - 75%
- 4 LEDs: 76% - 100%
7. Manteniment
Proper care will extend the life of your power bank:
- Netegeu el banc d'energia amb un drap suau i sec. No utilitzeu netejadors abrasius ni dissolvents.
- Guardeu el banc d'energia en un lloc fresc i sec quan no l'utilitzeu.
- Avoid fully discharging the power bank for extended periods. Recharge it at least once every three months to maintain battery health.
- No exposeu el banc d'energia a temperatures extremes ni a la llum solar directa.
8. Solució De Problemes
If you encounter issues with your power bank, refer to the table below:
| Problema | Causa possible | Solució |
|---|---|---|
| El banc d'energia no es carrega | Cable is faulty or not properly connected. Charger is not powerful enough. | Ensure cable is securely connected. Try a different USB-C cable. Use a wall charger with sufficient output (e.g., 20W PD charger). |
| El dispositiu no es carrega des del banc d'energia | Power bank is depleted. Cable is faulty or not properly connected. Device is incompatible. | Recharge the power bank. Ensure cable is securely connected to both power bank and device. Try a different charging cable. Verify device compatibility. |
| Càrrega lenta | Using a non-fast charging port/cable. Device does not support fast charging. | Ensure you are using the USB-C PD port for fast charging compatible devices. Use a high-quality, fast-charging cable. |
| Els indicadors LED no funcionen | Power bank is completely discharged. Malfunction. | Charge the power bank for a few hours. If problem persists, contact customer support. |
9. Especificacions
| Característica | Especificació |
|---|---|
| Nom del model | PBNEWTANK20000B |
| Marca | línia cel·lular |
| Capacitat de la bateria | 20000 milionsampcada hora (mAh) |
| Composició de la bateria | Ió de liti |
| Tipus de connector | USB (USB-C, USB-A) |
| Característica especial | Compacte |
| Color | Blau |
| Voltage | 12 Volts (Output) |
| Usos recomanats | iPhone, Smartphones, Tablets, other USB-powered devices |
| Font d'alimentació | Cable elèctric |
10. Garantia i Suport
For information regarding warranty coverage, technical support, or service, please refer to the warranty card included in your product packaging or visit the official cellularline weblloc web. Conserveu el comprovant de compra per a reclamacions de garantia.
Official cellularline weblloc: www.cellularline.com





