1. Introduction
Thank you for choosing the 4smarts Mini Portable USB-C Charger. This compact and stylish power bank is designed to provide convenient on-the-go charging for your USB-C compatible devices. Please read this manual carefully to ensure proper use and optimal performance.

The 4smarts Mini Portable USB-C Charger features a built-in USB-C connector for direct plug-in charging, eliminating the need for extra cables. Its 4500mAh capacity provides reliable backup power, and its compact, lipstick-sized design makes it easy to carry.
2. Contenu du colis
Upon unboxing your 4smarts Mini Portable USB-C Charger, please ensure all the following items are present:
- 1 x 4smarts Mini Portable USB-C Charger (Model E08)
- 1 câble de charge USB-C vers USB-C
- 1 x Soft Pouch
- 1 x Manuel d'utilisation (ce document)

3. Installation et utilisation initiale
3.1 Chargement de la batterie externe
Before first use, fully charge your 4smarts Mini Portable USB-C Charger. Use the provided USB-C to USB-C cable and connect it to a compatible USB-C power adapter (not included). The four LED indicators on the side will show the charging progress and current battery level.

3.2 Vérification du niveau de la batterie
La batterie externe est dotée de quatre indicateurs LED permettant d'afficher son niveau de charge restant :
- 4 LED : 75-100% chargé
- 3 LED : 50-75% chargé
- 2 LED : 25-50% chargé
- 1 LED : 0-25% chargé (rechargez bientôt)
4. Mode d'emploi
4.1 Charging Your Device (Direct Plug-in)
- Remove the protective cap from the built-in USB-C connector.
- Align the USB-C connector with your device's charging port and firmly plug it in.
- La batterie externe commencera automatiquement à recharger votre appareil. Les indicateurs LED afficheront le niveau de charge restant.

4.2 Charging a Second Device (Two-Way Convenience)
While your primary device is charging via the built-in connector, you can also charge a second device. Connect the provided USB-C to USB-C cable to the USB-C input port on the power bank and to your second device. This allows for simultaneous charging.
4.3 Compatibilité
This power bank is designed for USB-C compatible devices, including:
- iPhone 16/16 Pro/16 Pro Max/16 Plus
- Série iPhone 15
- Samsung Galaxy S24/S23/S22/S21/S20, Z Flip/Ultra
- GooglePixel 8/7/6
- Other USB-C Android smartphones
Note: This device is not compatible with iPhones that use Lightning ports.

4.4 Fitting with Phone Cases
The design of the built-in USB-C connector allows for charging even when your phone has a protective case, ensuring a secure connection without needing to remove the case.

5. Entretien et sécurité
5.1 Nettoyage
Essuyez la batterie externe avec un chiffon doux et sec. N'utilisez pas de produits chimiques agressifs ni de matériaux abrasifs.
5.2 Stockage
Store the power bank in a cool, dry place away from direct sunlight and extreme temperatures. Use the provided soft pouch to protect it from scratches.

5.3 Précautions de sécurité
- N'exposez pas la banque d'alimentation à l'eau ou à l'humidité.
- Évitez de laisser tomber ou de soumettre l'appareil à des impacts violents.
- Ne pas démonter, modifier ou tenter de réparer la batterie externe.
- Tenir hors de portée des enfants.
- Do not use if the device is damaged or shows signs of overheating.
6. Dépannage
If you encounter any issues with your 4smarts Mini Portable USB-C Charger, please refer to the following common solutions:
| Problème | Solution |
|---|---|
| L'appareil ne charge pas | Ensure the power bank is charged. Check the connection between the power bank and your device. Try a different USB-C cable if using the two-way charging feature. |
| Chargement lent | Ensure your device and the power bank are properly connected. Verify that the power bank itself is fully charged. |
| Les indicateurs LED ne fonctionnent pas | Press the power button to activate the indicators. If they still do not light up, the power bank may be fully depleted or require service. |
7. Spécifications
- Numéro de modèle : E08
- Capacité de la batterie : 4500 millièmeamp Heures (mAh)
- Dimensions du produit : 3.15 x 1.9 x 1.17 pouces
- Poids de l'article : 3.52 onces
- Type de connecteur : USB Type C (built-in)
- Entrée/Sortie : USB-C
- Caractéristiques spéciales : Lightweight, Pocket Size, Slim, Super Mini, Ultra Compact
- Fabricant: Jiangsu Cooostar Technology Co.,Ltd
- Date de mise en ligne sur Amazon : 4 juin 2024
8. Garantie et assistance
4smarts is committed to delivering innovative, quality electronic accessories. For warranty information or technical support, please refer to the contact details provided in the original product packaging or visit the official 4smarts website. You can also reach out to customer service via the following:
- Courriel d'assistance : support@iwalkworld.com
- Service Phone (US): 1-888-801-8888 (M-F 9:00-17:00 PST)
- Service Phone (UK): +44-808-175-0000 (M-F 9:00-17:00 GMT)





