Charmast 20000mAh Wireless Power Bank User Manual

1. Introduction

Thank you for choosing the Charmast 20000mAh Wireless Power Bank. This manual provides essential information for the safe and efficient operation of your device. Please read it thoroughly before use and retain it for future reference.

Image 1.1: Charmast 20000mAh Wireless Power Bank. This image displays the sleek black power bank with its digital LED display and multiple charging ports.

2. Package Contents

Verify that all items are present in your package:

• 1x Charmast 20000mAh Wireless Power Bank
• 1x USB-A to USB-C Cable
• 1x Mesh Bag
• 1x User Manual (this document)

Image 2.1: Package Contents. This image shows the power bank, USB-A to USB-C cable, mesh bag, and user manual as they appear in the product packaging.

3. Product Overview

Familiarize yourself with the various components of your power bank:

Image 3.1: Product Overview. This diagram highlights the wireless charging pad, LED display, power button, Micro USB input, USB-C input/output, and three USB-A outputs.

• Wireless Charging Pad: For Qi-enabled device charging.
• LED Display: Shows remaining battery percentage and charging status.
• Power Button: Activates the power bank and LED display.
• Micro USB Input: For recharging the power bank (18W Max).
• USB-C Input/Output: For recharging the power bank (18W Max) or charging devices (20W Max).
• USB Output 1/2: Standard USB-A ports for charging devices (5V-2.4A).
• USB Output 3: Quick Charge 3.0 compatible USB-A port for fast charging devices (22.5W Max).

4. Operating Instructions

4.1 Charging the Power Bank

Before first use, fully charge the power bank. To recharge:

1. Connect the provided USB-A to USB-C cable to the power bank's USB-C input port.
2. Connect the other end of the cable to a compatible USB wall adapter (not included).
3. Alternatively, use a Micro USB cable to charge via the Micro USB input port.
4. The LED display will show the charging progress. A full charge with an 18W Power Delivery (PD) adapter takes approximately 6 hours.

Image 4.1: Recharging the Power Bank. This image illustrates connecting a USB-C cable to the power bank for recharging, highlighting the 18W PD fast recharge capability.

4.2 Charging Devices

The power bank supports charging up to 5 devices simultaneously via wired and wireless connections.

Wired Charging

1. Connect your device's charging cable to one of the power bank's USB output ports (USB 1, USB 2, USB 3, or USB-C).
2. Connect the other end of the cable to your device.
3. The power bank will automatically begin charging.

Image 4.2: Simultaneous Wired Charging. This image demonstrates charging multiple devices, including smartphones and tablets, using the power bank's various output ports.

Wireless Charging

The power bank features a 15W Max Qi wireless charging pad.

1. Ensure your device is Qi-enabled.
2. Place your device directly onto the wireless charging pad on the power bank.
3. The power bank will automatically detect and begin wireless charging.
4. Note: The wireless charging function is not suitable for Samsung Series devices.

Image 4.3: 15W Wireless Charging. This image shows a smartphone being wirelessly charged by placing it on the power bank's charging pad.

Image 4.4: Wireless Compatibility. This graphic illustrates the broad compatibility of the wireless charging feature with various devices, including iPhones, Google Pixels, and AirPods, specifying different wattage outputs.

4.3 LED Display Indicators

The intelligent LED display provides real-time information:

• Percentage Display: Shows the remaining battery capacity of the power bank.
• 'FAST' Symbol: Appears when the power bank is in fast charge mode (either input or output).
• Wireless Charging Symbol: Appears when a device is being wirelessly charged.

5. Safety Information

To ensure safe operation and prolong the lifespan of your power bank, please observe the following:

• Do not expose the power bank to extreme temperatures (above 60°C/140°F or below 0°C/32°F).
• Avoid contact with water or other liquids.
• Do not drop, puncture, or disassemble the device.
• Keep out of reach of children.
• Use only certified cables and adapters.
• Dispose of the power bank responsibly according to local regulations.

6. Maintenance

Proper maintenance helps ensure optimal performance:

• Clean the power bank with a soft, dry cloth. Avoid abrasive cleaners.
• Store the power bank in a cool, dry place when not in use.
• If storing for extended periods, charge the power bank to approximately 50-75% every three months to maintain battery health.

7. Troubleshooting

If you encounter issues with your power bank, refer to the following common solutions:

• Power bank not charging: Ensure the charging cable and wall adapter are functioning correctly and properly connected. Try a different cable or adapter.
• Device not charging: Check if the power bank has sufficient charge. Ensure the charging cable is securely connected to both the power bank and your device. For wireless charging, ensure your device is Qi-compatible and correctly positioned on the charging pad.
• Slow charging: Verify that your cables and devices support fast charging protocols (PD, QC 3.0) if you expect fast charging speeds. Some devices or cables may limit charging speed.
• LED display not working: Press the power button to activate the display. If it remains unresponsive, the power bank may be fully discharged or require service.

8. Specifications

Image 8.1: Device Charge Capacity. This graphic illustrates the approximate number of charges the power bank can provide for various smartphone models, such as iPhone 12, Galaxy S20, Xiaomi 10 Pro, and Huawei P40 Pro.

9. Warranty and Support

For warranty information and customer support, please refer to the documentation provided at the time of purchase or visit the official Charmast website. Keep your purchase receipt as proof of purchase for warranty claims.