Introduction
Thank you for choosing the Charmast Portable Charger. This device is designed to provide convenient and fast charging for your mobile devices on the go. Featuring built-in cables and a wall plug, it offers versatile recharging and output options, making it an ideal travel companion. Please read this manual carefully to ensure proper use and maintenance of your portable charger.
What's in the Box
- Charmast Portable Charger with Built-in Cables
- User Manual (this document)
- Mesh Pouch
Product Overview
The Charmast Portable Charger (Model W1115) is a compact and powerful 10000mAh power bank designed for ultimate convenience. It integrates multiple charging solutions into one sleek device.

Figure 1: Front and back view of the Charmast Portable Charger, highlighting its integrated cables and foldable wall plug.

Figure 2: The 6-in-1 functionality of the portable charger, demonstrating its ability to charge multiple devices including phones, earbuds, and tablets using its various ports and built-in cables.

Figure 3: Illustration of the ultra-slim portable design, showing the compact dimensions of the charger in comparison to a typical smartphone.

Figure 4: Key features highlighted: the convenient built-in wall plug, integrated charging cables, and a clear LED digital display for battery status.
Key Features:
- Built-in Cables: Includes integrated cables for various devices (USB-C, Lightning, Micro-USB) eliminating the need for extra cables.
- Built-in Wall Plug: Allows direct recharging from any standard wall outlet without an adapter.
- 10000mAh Capacity: Provides multiple charges for smartphones and other small devices.
- Fast Charging: Supports up to 15W fast charging output.
- Digital Display: Clear LED screen shows precise battery percentage.
- Compact and Slim Design: Easy to carry and store, ideal for travel.
- Multiple Safety Protections: Built-in safeguards against over-discharge, short-circuit, over-current, and over-voltage.
Setup
Before first use, it is recommended to fully charge your Charmast Portable Charger.
- Unpack: Remove the portable charger and all accessories from the packaging.
- Initial Charge:
- Using Built-in Wall Plug: Fold out the integrated wall plug and insert it directly into a standard AC wall outlet. The LED display will show the charging progress.
- Using USB-C Input: Alternatively, connect a USB-C cable (not included) to the USB-C input port on the power bank and plug the other end into a compatible USB wall adapter (5V-2.6A recommended for faster charging).
- Full Charge Indication: The LED display will show "100" when the power bank is fully charged.

Figure 5: Demonstrates the two convenient methods for recharging the power bank: directly via the built-in wall plug or through the USB-C input port using an external adapter.
Operating Instructions
Charging Your Devices:
The Charmast Portable Charger offers multiple ways to charge your electronic devices.
- Using Built-in Cables:
- Identify the correct built-in cable for your device (USB-C, Lightning, or Micro-USB).
- Gently pull out the desired cable from its storage slot.
- Connect the cable to your device's charging port. The power bank will automatically begin charging your device.
- Using USB-A or USB-C Output Ports:
- For devices requiring a different cable or for simultaneous charging, use your own USB-A or USB-C cable.
- Plug one end of your cable into the appropriate output port on the power bank (USB-A or USB-C).
- Connect the other end to your device.
- Checking Battery Level: The LED display will show the remaining battery percentage of the power bank.

Figure 6: A user charging their smartphone with the Charmast Portable Charger, demonstrating its ease of use in a typical setting.
Recharging the Power Bank:
When the power bank's battery level is low, recharge it using one of the following methods:
- Direct Wall Charging: Extend the built-in AC wall plug and insert the power bank directly into a wall socket. This is the most convenient method for recharging.
- USB-C Input Charging: Connect a USB-C cable to the power bank's USB-C input port and plug the other end into a USB wall adapter or computer USB port.

Figure 7: The portable charger plugged into a wall outlet, simultaneously recharging itself and a connected smartphone, illustrating its "Wake up, Ready to Go" convenience.
Maintenance
Proper care and maintenance will extend the lifespan of your Charmast Portable Charger.
- 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. Do not use liquid cleaners or abrasive materials.
- Avoid Drops: While the rubberized cover offers some protection, avoid dropping the device to prevent internal damage.
- Regular Use: If not used for extended periods, charge and discharge the power bank at least once every three months to maintain battery health.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Power bank not charging devices. |
|
|
| Power bank not recharging. |
|
|
| Slow charging. |
|
|
Specifications
| Model Number | W1115 |
| Battery Capacity | 10000mAh (37Wh) |
| Product Dimensions | 5.95 x 2.76 x 0.72 inches (15.1 x 7.0 x 1.8 cm) |
| Item Weight | 8 ounces (227 grams) |
| Input (AC Wall Plug) | 100-240V~50/60Hz 0.3A |
| Input (USB-C) | 5V-2.6A |
| Output (USB-A) | 5V-3A |
| Output (USB-C) | 5V-3A |
| Output (Built-in Cables) | 5V-3A (Max 15W) |
| Special Features | Built-in Cables, Built-in Wall Plug, Digital Display, Fast Charging, Slim Design |
| Battery Type | Lithium Polymer |
Safety Information
Please read and follow these safety guidelines to prevent injury or damage to the device.
- Do not expose the power bank to extreme temperatures (hot or cold), direct sunlight, or high humidity.
- Do not disassemble, modify, or repair the device yourself. Contact customer support if service is required.
- Keep out of reach of children.
- Do not drop, puncture, or apply excessive force to the power bank.
- Avoid contact with water or other liquids.
- Dispose of the power bank responsibly according to local regulations. Do not dispose of it in household waste.
- This power bank is allowed in carry-on bags for air travel but not in checked bags. Always check airline regulations before flying.

Figure 8: Visual guide indicating that the portable charger is permitted in carry-on luggage but prohibited in checked baggage for air travel, in compliance with airline safety regulations.

Figure 9: Diagram illustrating the multiple safety protection features integrated into the power bank, including safeguards against over-discharge, short-circuit, over-current, and over-voltage.
Warranty and Support
Charmast products come with a standard manufacturer's warranty. For detailed warranty information, product support, or technical assistance, please contact Charmast customer service through the retailer where you purchased the product or visit the official Charmast website.
Manufacturer: Dong guan Utopia-Originality Technology Co., Ltd
Brand Store: Visit Charmast Store on Amazon





