1. Introduction
Thank you for choosing the CUKTECH 20 Power Bank. This high-capacity, fast-charging portable power solution is designed to keep your devices powered on the go. Featuring advanced PD3.1 protocol support and a smart TFT display, it offers efficient and intelligent charging for a wide range of devices, including laptops, smartphones, and tablets. Please read this manual carefully to ensure proper use and maintenance of your power bank.
2. Package Contents
Verify that all items are present in your package:
- CUKTECH 20 Power Bank (2C1A ports)
- 1 x 3.3ft 240W USB-C to USB-C Charging Cable
- 1 x Storage Bag
- 1 x User Manual (this document)
3. Product Features
- High-Efficiency, Quick Charging Capability: Delivers up to 140W power, fully compliant with PD3.1 protocol for rapid charging of compatible devices like MacBook Pro.
- Mega Battery Life: Equipped with an Auto-Grade 25000mAh battery, offering over 1000 charge cycles. Capable of charging a MacBook Air 1.2 times or an iPhone 15 up to 4 times.
- Smart TFT Display: Provides real-time information including battery level, power, voltage, current, and remaining charge/discharge time.
- Modern Aesthetics & Compact Design: Features a classic gray matte finish with a futuristic blue light strip. Its compact size (similar to a cola can) makes it ideal for travel and daily use.
- Lightning-Fast Self-Charging: Supports 110W input, allowing for a 40% charge in just 19 minutes and a full charge in approximately 2 hours.
- Safety Certifications: Meets UL, CE, CB, and FCC safety standards, ensuring a secure charging experience.
- TSA Compliant: With a 90Wh rating, it meets TSA requirements for carry-on luggage on airplanes.
4. Product Overview
The CUKTECH 20 Power Bank, showcasing its sleek design and the included USB-C charging cables.
Illustration of the 140W super instant charging feature, highlighting compatibility with MacBook Pro, iPhone 15 Pro Max, and Samsung S24 Ultra.
Visual representation of the 25,000mAh large capacity, indicating approximate charge times for devices like iPhone 14, MacBook Air, iPad Air, Galaxy S23 Ultra, SteamDeck, and Switch.
The power bank in use, demonstrating its ability to support multi-device fast charging for on-the-go work.
The power bank's pillar-shaped design allows for vertical placement, saving space on a workspace.
Detailed view of the 1.54-inch TFT color screen, showing various data points like battery percentage, input/output power, voltage, current, and charging status.
The power bank's 90Wh rated energy ensures it is compliant for air travel as carry-on luggage.
Size comparison illustrating that the power bank is shorter than a mobile phone and easily holdable with one hand.
5. Setup and Initial Use
5.1 Initial Charging of the Power Bank
Before first use, it is recommended to fully charge your CUKTECH 20 Power Bank. Connect the provided USB-C to USB-C cable to one of the power bank's USB-C ports (Type-C1 or Type-C2) and connect the other end to a compatible power adapter (not included) with at least 110W output for fastest charging. The TFT display will show the charging status and estimated time to full charge.
5.2 Connecting Devices
The power bank features two USB-C ports (Type-C1, Type-C2) and one USB-A port (USB-A1). Use appropriate cables for your devices.
- USB-C Ports (Type-C1, Type-C2): Ideal for laptops, modern smartphones, and tablets that support USB-C Power Delivery (PD). These ports support both input and output.
- USB-A Port (USB-A1): Suitable for older devices or accessories that use a standard USB-A connection.
6. Operating Instructions
6.1 Charging Your Devices
- Connect your device to the power bank using a suitable charging cable.
- The power bank will automatically detect the connected device and begin charging.
- Monitor the charging status on the TFT display.
6.2 Recharging the Power Bank
To recharge the power bank, connect it to a power source via either USB-C port. For optimal speed, use a power adapter that supports 110W input. The display will indicate the input wattage and estimated time until fully charged.
6.3 Understanding the TFT Display
The 1.54-inch TFT color screen provides comprehensive real-time data:
- Battery Percentage: Shows the current charge level of the power bank.
- Total Input/Output Power: Displays the combined wattage being drawn or supplied.
- Remaining Time: Estimates the time until the power bank is fully charged or depleted.
- Voltage (V) / Current (A) / Power (W): Detailed readings for each active port.
- Charging/Discharging Status: Indicates whether the power bank is currently charging or discharging.
6.4 Multi-Port Charging
The CUKTECH 20 Power Bank supports simultaneous charging of multiple devices. The power distribution will adjust based on the number and type of connected devices. For example:
- Single Port Charging: Type-C1 can deliver up to 140W max for laptops. Type-C2 can deliver up to 45W max for laptops. USB-A1 can deliver up to 30W max.
- Two-Port Charging: Power is intelligently distributed. For instance, Type-C1 and Type-C2 can both deliver up to 65W max. Type-C1 (65W max) and USB-A1 (45W max). Type-C2 (30W max) and USB-A1 (45W max).
- Three-Port Charging: When all three ports are in use, power is shared, typically with Type-C1 and Type-C2 providing up to 65W max and 45W max respectively, and USB-A1 providing up to 30W max.
Refer to the real-time display for exact power output per port during multi-device charging.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the power bank. Avoid using harsh chemicals or abrasive materials.
- Storage: Store the power bank in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery lifespan, avoid fully depleting the power bank frequently. Recharge it when the battery level is low. If storing for extended periods, charge it to about 50-70% every 3-6 months.
- Avoid Drops: Protect the device from drops and impacts, which can damage internal components.
8. Troubleshooting
- Power Bank Not Charging:
- Ensure the charging cable is securely connected to both the power bank and the power adapter.
- Verify that the power adapter is functioning correctly and provides sufficient power (e.g., 110W for fast charging).
- Try a different USB-C port or cable.
- If the power bank is hot from recent heavy use, it may temporarily limit charging input until it cools down.
- Device Not Charging from Power Bank:
- Check if the power bank has sufficient charge.
- Ensure the charging cable is securely connected to both the power bank and your device.
- Try a different port on the power bank or a different charging cable.
- Confirm your device is compatible with the power bank's output specifications.
- Slow Charging:
- Ensure you are using a high-quality cable that supports fast charging protocols (e.g., 240W USB-C cable).
- Verify that your device supports the fast charging protocols (PD3.1, PPS) offered by the power bank.
- If multiple devices are connected, the power output per port will be shared, potentially reducing individual charging speeds.
- TFT Display Not Working/Showing Errors:
- Try pressing the power button briefly to reactivate the display.
- If the display is completely unresponsive, try a hard reset by long-pressing the power button (ensure no devices are plugged in).
- Contact customer support if the issue persists.
9. Specifications
| Feature | Specification |
|---|---|
| Model Number | P23 |
| Battery Capacity | 25000mAh (90Wh) |
| Max Output Power | 140W |
| Max Input Power | 110W |
| Ports | 2 x USB Type-C, 1 x USB Type-A |
| Display | 1.54" TFT Color Screen |
| Dimensions | 6.3 x 2.17 x 2.17 inches |
| Item Weight | 1.39 pounds |
| Safety Certifications | UL, CE, CB, FCC |
10. Safety Information
- Do not expose the power bank to extreme temperatures (hot or cold), direct sunlight, or high humidity.
- Do not disassemble, modify, or attempt to repair the device yourself. This will void the warranty and may cause damage or injury.
- Keep out of reach of children.
- Avoid dropping or subjecting the power bank to strong impacts.
- Do not use the power bank if it is damaged, swollen, or leaking.
- Dispose of the power bank responsibly according to local regulations. Do not dispose of it with household waste.
11. Warranty and Support
CUKTECH provides an 18-month worry-free service for this product. If you encounter any issues or have questions, please contact our dedicated customer service team. For support, refer to the contact information provided on the product packaging or the official CUKTECH website.
