charmast C11S

Charmast 10000mAh Wired Portable Charger

Model: C11S User Manual

Your reliable power companion.

1. Introduction

This manual provides essential information for the safe and efficient use of your Charmast 10000mAh Wired Portable Charger. Please read it thoroughly before operating the device and retain it for future reference.

Charmast 10000mAh Wired Portable Charger, black, showing its compact design and built-in cables.

Figure 1: Charmast 10000mAh Wired Portable Charger (Model C11S)

2. Product Features

  • Built-in Input/Output Cable: Features an integrated cable for both charging the power bank and charging devices, including iPhone and Android. The cable is designed to prevent loss.
  • 20W PD Fast Charging: Supports rapid charging for compatible devices and for recharging the power bank itself.
  • Compact and Lightweight Design: Measures approximately 4.44 x 2.72 x 0.64 inches and weighs about 0.4 pounds, making it highly portable.
  • Universal Compatibility: Compatible with a wide range of devices including iPhone (16/15/14/13/12/11/8/7 series), Samsung (S24/S23/S22/S21/S20), Google Pixel, other Android phones, portable fans, Bluetooth headphones, and heated vests.
  • 10000mAh Capacity: Provides significant power, capable of approximately 1.5 charges for iPhone 15 Pro Max, 1.9 for iPhone 14, and 1.4 for Samsung S23.
  • Digital Display: An integrated side battery monitor clearly shows the remaining battery percentage.
Charmast power bank showing its built-in Lightning and USB-C cables connected to an iPhone and an Android phone.

Figure 2: Built-in cables for universal compatibility

Charmast power bank connected to a smartphone, illustrating universal compatibility with various devices like iPhone, Samsung, and AirPods.

Figure 3: Universal device compatibility

3. What's in the Box

Upon opening your product packaging, you should find the following items:

  • 1 x Charmast 10000mAh Power Bank
  • 1 x Built-in Input/Output Cable (USB-C to Lightning/USB-C)
  • 1 x User Manual (this document)
Contents of the Charmast power bank packaging, including the power bank, built-in cable, and user manual.

Figure 4: Product Packaging Contents

4. Setup

Before first use, it is recommended to fully charge your Charmast power bank.

4.1 Charging the Power Bank

The power bank can be recharged using its built-in cable or your own compatible cable. It typically takes 2 to 4 hours for a full charge.

  1. Connect the built-in USB-C end of the cable to a compatible USB wall adapter (not included).
  2. Plug the wall adapter into a power outlet.
  3. The digital display on the power bank will show the charging progress. Once it reaches 100%, the power bank is fully charged.
Three illustrations showing different methods to recharge the Charmast power bank: using the built-in cable with a wall adapter, using an external cable, and using both built-in and external cables simultaneously.

Figure 5: Recharging methods for the power bank

5. Operating Instructions

5.1 Charging Your Devices

The Charmast power bank is designed for convenient and fast charging of your mobile devices.

  1. Identify the correct connector for your device from the built-in cable (Lightning for iPhone, USB-C for Android and other devices).
  2. Unplug the required port from the power bank's cable slot.
  3. Connect the appropriate end of the built-in cable to your device's charging port.
  4. The power bank will automatically begin charging your device. The digital display will show the power bank's remaining charge.
  5. To stop charging, simply disconnect the cable from your device.

Note: If the digital display is off, press the on/off button on the side of the power bank to reactivate it and check the battery percentage.

Charmast power bank fast charging a smartphone, showing 55% charge in 35 minutes.

Figure 6: 20W PD Fast Charging capability

5.2 Magnetic Attachment (for holding only)

The portable charger features a magnetic attachment for easy holding with compatible phones. This is for convenience and does not provide wireless charging.

Comparison image showing a person using the Charmast power bank with magnetic attachment for hands-free holding versus another power bank requiring manual holding.

Figure 7: Hands-free holding with magnetic attachment

6. Maintenance

To ensure the longevity and optimal performance of your Charmast power bank, follow these maintenance guidelines:

  • Storage: Store the power bank in a cool, dry place away from direct sunlight and extreme temperatures.
  • Cleaning: Use a soft, dry cloth to clean the surface of the power bank. Avoid using harsh chemicals or abrasive materials.
  • Handling: Avoid dropping the power bank or subjecting it to strong impacts, as this can damage internal components.
  • Water Exposure: Keep the power bank away from water and high humidity. It is not waterproof.
  • Charging Cycles: For best battery health, avoid completely draining the power bank before recharging it regularly.

7. Troubleshooting

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

ProblemPossible CauseSolution
Power bank not chargingCable not properly connected; faulty wall adapter; power bank fully charged.Ensure all connections are secure. Try a different wall adapter or cable. Check the digital display for 100% charge.
Device not charging from power bankPower bank battery low; incorrect cable connection; device not compatible.Recharge the power bank. Ensure the built-in cable is fully inserted into your device. Verify device compatibility.
Digital display is offPower saving mode; power bank is off.Press the on/off button on the side of the power bank to activate the display.
Slow chargingUsing a non-fast charging adapter/cable; device not supporting fast charging.Ensure you are using a 20W PD compatible wall adapter and the built-in cable. Confirm your device supports fast charging.

If the problem persists after trying these solutions, please contact Charmast customer service for further assistance.

8. Specifications

Brandcharmast
Model NumberC11S
Battery Capacity10000 Milliamp Hours (mAh)
Product Dimensions4.44 x 2.71 x 0.56 inches
Item Weight7.4 ounces
Batteries2 Lithium Polymer batteries (included)
Connector TypeFor iPhone, Android (Built-in Cable)
Special FeaturesAuto Shut-Off, Built-In Cable, Digital Display, Fast Charging, Pocket Size
ManufacturerDong guan Utopia-Originality Technology Co., Ltd
Date First AvailableDecember 15, 2023

9. Warranty & Support

Charmast provides a 24-month support period for your product. If you encounter any problems or have questions, please do not hesitate to contact our friendly customer service team through Amazon. We are committed to resolving any issues within 24 hours.

For direct support, you can reach out to the seller: Charmast.

© 2023 charmast. All rights reserved.

Information in this manual is subject to change without notice.

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