Product Overview
The Basike B203B Power Bank is a high-capacity portable charger designed for fast and efficient charging of various electronic devices. Featuring a 20000mAh battery, 65W power output, and an integrated, removable Type-C cable, it offers convenience and versatility for users on the go.

Image: Basike Power Bank B203B in silver, highlighting its compact form factor and the integrated Type-C cable. This image provides a general view of the product.
Package Contents
- 1x Basike Power Bank 20000mAh (Model B203B) with detachable dual Type-C cable
- 1x User Manual
- 1x Packaging Box
Setup
Initial Charging of the Power Bank
Before first use, fully charge your Basike Power Bank. Connect the power bank to a compatible USB-C wall charger using either the integrated Type-C cable or an external Type-C cable through the dedicated Type-C input port. The digital LED display will show the charging progress. A full charge typically takes 2-3 hours with a 40W input.

Image: Close-up of the Basike Power Bank's digital LED display, indicating battery percentage and fast charging status. This display helps monitor the power bank's charge level.
Understanding the Digital LED Display
The integrated digital LED display provides real-time information:
- Battery Indicator: Shows the current battery percentage of the power bank.
- Fast Charging Indicator: Illuminates when a fast charging protocol is active.
Operating Instructions
Charging Your Devices
The power bank supports charging for smartphones, tablets, headphones, and notebooks with USB-C ports. It is compatible with PD 3.0, QC 3.0, and other fast charging protocols.
- Using the Integrated Type-C Cable: Pull out the integrated Type-C cable and connect it directly to your device's Type-C port.
- Using the USB-C Output Port: Connect your device to the power bank's USB-C output port using a compatible Type-C cable.
The LED display will activate, and charging will begin automatically. Compatible devices will enter fast charging mode if supported.

Image: Diagram illustrating the Basike Power Bank's integrated Type-C cable and the separate USB-C port, detailing their input and output capabilities (up to 65W output, 40W input).
Simultaneous Charging
You can charge up to two devices simultaneously with a total power output of up to 65W. The power is distributed between the devices to ensure stable and safe charging.

Image: The Basike Power Bank simultaneously charging a smartphone and a tablet, demonstrating its 65W fast charging capability for multiple devices.
Recharging the Power Bank
The power bank supports bidirectional charging via its integrated Type-C cable and the dedicated Type-C input port. Connect it to a power source (e.g., wall adapter) to recharge. The maximum input is 40W, allowing for a full recharge in approximately 2-3 hours.
Compatibility
The Basike Power Bank is compatible with a wide range of USB-C devices, including:
- Smartphones (iPhone, Samsung, Google Pixel, LG, etc.)
- Tablets (iPad, Surface, Galaxy Tab, etc.)
- Notebooks (MacBook, Dell XPS, etc.)
- Low-power devices (Bluetooth speakers, headphones, smartwatches, fitness trackers)

Image: The Basike Power Bank shown with a variety of compatible devices, including smartphones, tablets, and smaller electronic accessories, illustrating its broad compatibility.
Maintenance
- Store the power bank in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid dropping or subjecting the power bank to strong impacts.
- Do not expose the power bank to water or other liquids.
- Clean the exterior with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- To prolong battery life, fully charge the power bank at least once every three months if not in regular use.
- Do not attempt to disassemble or modify the power bank. This will void the warranty and may cause safety hazards.
- Use only compatible charging cables and adapters. Basike is not responsible for damages caused by improper use or use with incompatible electrical devices.
Troubleshooting
Power Bank Does Not Turn On or Charge
- Check Cables and Adapters: Try using a different, known-good charging cable and wall adapter to recharge the power bank. Ensure they are compatible and functioning correctly.
- Recharge for 1-3 Hours: If the power bank has been completely depleted, it might require a longer initial charge to reactivate. Connect it to a higher-power charger for 1-3 hours.
- Contact Support: If the issue persists after trying the above steps, please contact Basike customer support for further assistance.
Slow Charging
- Check Cable Quality: Ensure you are using a high-quality cable that supports fast charging.
- Device Compatibility: Verify that your device supports fast charging protocols (PD, QC) and that the power bank is delivering sufficient wattage.
- Simultaneous Charging: If charging multiple devices, the total power output is shared, which might result in slower charging for individual devices.
Specifications
| Product Model | B203B |
| Battery Capacity | 20000 Milliamp Hours |
| Rated Capacity | 12000mAh (5V==3A) |
| Battery Energy | 77Wh (10000mAh 7.7V DC) |
| Type-C Input (Port & Cable) | 5V==3A, 9V==3A, 12V==3A, 15V==2.6A, 20V==2A (40W MAX) |
| Type-C Output (Port & Cable) | 5V==3A, 9V==3A, 12V==3A, 15V==3A, 20V==3.25A (65W MAX) |
| Total Output | 65W MAX |
| Dimensions | 72 × 36 × 96 mm (2.83 × 1.42 × 3.78 inches) |
| Weight | 323g (0.71 lb) |
| Charging Time | Approx. 2-3 hours (with 40W input) |
| Special Features | Integrated Cable, Fast Charging, Short-circuit Protection, Overcharge Protection, Digital Display |
| Safety Certifications | ANATEL: 01577-25-15167 |

Image: Visual representation of the Basike Power Bank's compact dimensions (96mm x 72mm x 32mm) and weight (323g), demonstrating its portability.
Safety Information
The Basike Power Bank is equipped with multiple safety protections to ensure safe operation:
- Overcharge Protection
- Overvoltage Protection
- Overcurrent Protection
- Short-circuit Protection
- Overheating Protection
These features safeguard both the power bank and your connected devices.

Image: Illustration highlighting the "8 SmartProtect Layers" of the Basike Power Bank, emphasizing its safety features against common issues like swelling and explosion seen in other products.
Warranty and Support
Basike offers a 1-year warranty against manufacturing defects for this product. Additionally, 24/7 customer support is available.
For any questions or issues, please contact Basike customer support through the Amazon chat platform.
Disclaimer: Basike is not responsible for damages caused by improper use of the product or use with an incompatible electrical device.
Product Video
Video: An official Basike video showcasing the features and usage of the Basike 65W B203A Portable Charger. This video demonstrates the product's design, integrated cable, and charging capabilities.