1. Introduction
Thank you for choosing the Portable Charger Power Bank 10000mAh. This portable power bank is designed to provide reliable and versatile charging for a wide range of devices, including smartphones, smartwatches, and earbuds. With its high capacity, multiple charging options, and user-friendly design, it ensures your devices stay powered on the go.
Please read this manual carefully before using the product to ensure safe and optimal performance. Keep this manual for future reference.
2. What's in the Box
- 1 x Portable Charger Power Bank
- 1 x USB Charging Cable
- 1 x User Manual
3. Product Overview
Familiarize yourself with the key components of your power bank:

Figure 3.1: Front view of the power bank demonstrating wireless charging for a smartphone, Apple Watch, and AirPods.
- Wireless Charging Pad: For magnetic wireless charging of compatible devices.
- Built-in Cables: Integrated Type-C and Lightning cables for wired charging.
- Digital Display: Shows remaining battery percentage and charging status.
- Power Button: Activates the power bank and checks battery level.
- Adjustable Stand: Two-level kickstand for hands-free device viewing.
- Type-C Input/Output Port: For recharging the power bank and charging other devices.
4. Setup
4.1 Initial Charge
Before first use, fully charge your power bank. Connect the included USB-C cable to the power bank's Type-C port and the other end to a USB power adapter (not included). The digital display will show the charging progress. A full charge is indicated by "100%".

Figure 4.1: Power bank with built-in cables and digital display, indicating input/output capabilities.
5. Operating Instructions
5.1 Checking Battery Level
Single-click the power button to view the remaining battery percentage on the digital display.
5.2 Wireless Charging (15W Max)
- Ensure your device is wireless charging compatible (e.g., iPhone 12-15 series, Apple Watch, AirPods).
- Align your device with the magnetic charging area on the power bank. The power bank will automatically begin wireless charging.
- For optimal performance, ensure your phone case is MagSafe compatible or remove thick cases.

Figure 5.1: Wireless charging for various devices.
Video 5.1: Official product video demonstrating the sunpolin magnetic portable charger's features, including wireless charging and built-in cables.
5.3 Wired Charging (22.5W Type-C, 18W Lightning)
- Pull out the integrated Type-C or Lightning cable from its slot.
- Connect the appropriate cable to your device's charging port. The power bank will automatically begin charging.
- The Type-C cable supports both charging and discharging.

Figure 5.2: Wired charging using integrated cables.
5.4 Using the Adjustable Stand
Gently pull out the integrated kickstand from the back of the power bank. It can be adjusted to two different angles for comfortable hands-free viewing while charging or simply as a stand.

Figure 5.3: Power bank with kickstand in use.
6. Maintenance
- Keep the power bank away from water, fire, and extreme temperatures.
- Avoid dropping or subjecting the power bank to strong impacts.
- Clean the device with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
- Store in a cool, dry place when not in use for extended periods.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Power bank not charging. | Cable not properly connected; faulty cable/adapter. | Ensure all connections are secure. Try a different cable or power adapter. |
| Device not charging from power bank. | Power bank battery low; device not compatible with wireless charging; incorrect cable used; device case too thick. | Recharge the power bank. Ensure device is compatible. Use the correct built-in cable or remove thick phone cases for wireless charging. |
| Power bank gets warm during charging. | Normal operation; overcharge protection activated. | Slight warmth is normal. If excessively hot, disconnect and allow to cool. The power bank has overheating protection. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | EB621 |
| Battery Capacity | 10000mAh |
| Wireless Charging Output | 15W Max |
| Type-C Output | 22.5W Max |
| Lightning Output | 18W Max |
| Dimensions | 4.5 x 3 x 1.5 inches |
| Weight | 7.2 ounces |
| Safety Features | Overcharge protection, Overvoltage protection, Magnetic field protection, Short circuit protection, Overheating protection. |
9. Warranty and Support
The product comes with a lifetime warranty. For warranty claims or technical support, please refer to the contact information provided on the product packaging or the manufacturer's official website.
"With better after-sales service, we will help you solve your demands and questions and give you a satisfactory shopping experience." - sunpolin

