1. Producte acabatview
The ESR MagSafe Power Bank (Model 2G521) is a compact, portable charger designed for efficient wireless and wired charging of compatible devices. It features 15W MagSafe wireless charging, a 5,000mAh battery capacity, and advanced safety features.

Image 1.1: The ESR MagSafe Power Bank attached to an iPhone, demonstrating its ultra-slim profile i la portabilitat.
Característiques principals:
- Càrrega ràpida de 15 W: Provides faster and more reliable charging for compatible iPhones.
- Disseny ultracompacte: Slim and lightweight, ideal for on-the-go use.
- Dissipació de calor avançada: Built-in NTC sensor, AI algorithm, and graphene ensure safe charging by preventing overheating.
- Strong Magnetic Lock: 1,200g magnetic force securely holds the power bank to your device.
- Capacitat de càrrega dual: Charge two devices simultaneously via 15W MagSafe wireless and 20W USB-C wired charging.
2. Contingut del paquet
Si us plau, comproveu el paquet per veure si hi ha els elements següents:
- ESR MagSafe Portable Charger (15W, 5000mAh)
- USB-C to USB-C Cable (2.0-ft / 0.6 m)
- Manual d'instruccions
3. Configuració i ús inicial
3.1 Càrrega del banc d'energia extern
Before first use, fully charge your ESR MagSafe Power Bank. Use the provided USB-C to USB-C cable and a compatible 20W or higher USB-C power adapter (not included) for optimal charging speed.
- Connect one end of the USB-C to USB-C cable to the USB-C port on the power bank.
- Connect the other end of the cable to a USB-C power adapter.
- Connecteu l'adaptador de corrent a una presa de corrent.
- The indicator lights on the power bank will show the charging status. Once all lights are solid, the power bank is fully charged.
Note: It is recommended to use the original cable to charge the power bank.
4. Instruccions de funcionament
4.1 Càrrega sense fil (MagSafe)
The power bank supports 15W MagSafe wireless charging for compatible devices.
- Ensure your device is compatible with MagSafe wireless charging (iPhone 12 series and later, except SE, mini series, 16e).
- Align the power bank with the back of your iPhone. The magnets will automatically snap it into place.
- La càrrega començarà automàticament.

Image 4.1: Demonstrating 15W fast wireless charging with the ESR MagSafe Power Bank.
Note: Wireless charging is also compatible with AirPods 4/3 and AirPods Pro 2/Pro.
4.2 Càrrega amb cable (USB-C)
The power bank features a 20W USB-C port for wired charging.
- Connect one end of a USB-C to USB-C cable (or appropriate cable for your device) to the power bank's USB-C port.
- Connecteu l'altre extrem al vostre dispositiu.
- La càrrega començarà automàticament.
Note: Samsung and Android devices without wireless charging can only use 20W USB-C wired charging.
4.3 Càrrega simultània
You can charge two devices simultaneously using both the 15W MagSafe wireless charging and the 20W USB-C wired charging.
4.4 Magnetic Compatibility
For optimal magnetic attachment and charging, ensure your device or case is compatible:
- Compatible: Magnetic cases (≤3 mm thickness).
- No compatible: Irregular-shaped cases, non-magnetic cases, grips/stands, metal accessories, wallets.

Image 4.2: The ESR MagSafe Power Bank is ultra-compact compared to other power banks.

Image 4.3: The strong magnetic lock ensures the power bank stays securely attached to your device.

Image 4.4: Device and magnetic compatibility guidelines for the power bank.
5. Maintenance and Safety Guide
To ensure the longevity and safe operation of your power bank, please follow these guidelines:
- Temperatura de funcionament: Recommended for use between 50°F and 104°F (10°C and 40°C).
- Emmagatzematge: Emmagatzemar en un lloc fresc i sec quan no s'utilitzi.
- Eviteu la sobrecàrrega: Do not leave the power bank connected to a power source indefinitely after it is fully charged.
- Càrrega regular: Charge the power bank regularly, even if not in use, to maintain battery health.
- Ús del cable: Use the original USB-C to USB-C cable provided or a certified equivalent to charge the power bank.
- Dissipació de calor: The power bank features intelligent cooling technology with NTC sensors and AI algorithms to monitor temperatures and prevent overheating.

Image 5.1: The power bank is designed for cooler and safer operation.

Image 5.2: Important safety guidelines for using the ESR MagSafe Power Bank.
6. Solució De Problemes
6.1 Charging Stops at 80%
If your iPhone running iOS 17 pauses charging at 80%, this is a protective measure to prevent battery overheating. Charging will resume once the device cools down. To speed up this process, move your iPhone and power bank to a cooler location.

Image 6.1: Explanation for charging pausing at 80% on iOS 17 devices.
6.2 El dispositiu no es carrega
- Assegureu-vos que el banc d'energia estigui prou carregat.
- Check for proper alignment of the power bank with your device for wireless charging.
- Verify that your device is compatible with wireless charging or that the cable is securely connected for wired charging.
- Remove any non-magnetic cases, metal accessories, or wallets that may interfere with magnetic attachment or wireless charging.
- Try using a different charging cable or power adapter to charge the power bank itself.
7. Especificacions
| Número de model | 2G521 |
| Capacitat de la bateria | 5000 mAh |
| Sortida de càrrega sense fils | Fins a 15 W |
| USB-C Wired Charging Output | Fins a 20 W |
| Dimensions del producte | 4.13 x 2.66 x 0.55 polzades (10.5 x 6.75 x 1.4 cm) |
| Pes de l'article | 6.7 unces (190 g) |
| Tipus de connector | USB Type C, Magnetic Wireless Charging |
| Característiques especials | Fast Charging, Wireless Charging, Intelligent Cooling, Strong Magnetic Lock |
8. Garantia i Suport
ESR provides comprehensive customer support for this product:
- Pla de protecció: A comprehensive 24-month protection plan is included.
- Suport de per vida: Enjoy lifetime support for your product.
- Personalized Help: Access personalized assistance for any issues or questions.
- Recursos: Detailed setup videos and FAQs are available on the ESR weblloc.
For further assistance, please visit the official ESR weblloc web o contacteu directament amb el seu servei d'atenció al client.
9. Vídeo del producte
Video 9.1: Official product video demonstrating the features and usage of the ESR MagSafe Power Bank.





