Key Features and Benefits

1. High Capacity Support:

Designed to support high-capacity batteries, making it perfect for building a 20000mAh power bank.

Provides extended usage time for multiple device charges.

2. Efficient Charging and Discharging:

High-efficiency charging circuits ensure fast and efficient power delivery.

Optimized discharging rates to prolong battery life and maintain consistent performance.

3. Multi-Device Compatibility:

Equipped with multiple output ports (USB-A, USB-C, etc.) to charge various devices simultaneously.

Compatible with smartphones, tablets, cameras, and other portable electronics.

4. Intelligent Power Management:

Built-in smart IC (Integrated Circuit) for intelligent power management.

Automatically adjusts the output to suit the connected device, preventing overcharging and overheating.

5. Safety Features:

Includes protection against overcharge, over-discharge, overcurrent, and short circuits.

Ensures safe operation and protects both the power bank and connected devices.

6. DIY-Friendly Design:

Easy-to-assemble design with clear instructions, perfect for DIY enthusiasts.

All necessary components included for a complete assembly.

7. Compact and Portable:

Lightweight and compact design, ideal for carrying around without adding bulk.

Fits easily into bags or pockets for convenient on-the-go power.

8. LED Indicators:

Integrated LED indicators to show the battery level and charging status.

Allows users to monitor the power bank’s status at a glance.

9. High-Quality Components:

Made with premium quality components for durability and long-lasting performance.

Ensures reliable operation under various conditions.

10. Customization Options:

Provides options to customize the power bank’s appearance and features according to user preferences.

Flexible design to accommodate different battery sizes and configurations.

Electrical Characteristics

1. Input Voltage and Current:

Input Voltage: 5V-12V (depending on the model and charging method).

Input Current: 1A-3A (varies with input voltage and charging speed).

2. Output Voltage and Current:

Output Voltage: 5V for USB-A, 5V/9V/12V for USB-C (PD support).

Output Current: Up to 3A per port, with a total maximum output of 3A-5A.

3. Charging Efficiency:

High efficiency rating of 85%-90%, ensuring minimal energy loss during charging.

Fast charging support for quick power delivery to connected devices.

4. Battery Protection:

Overcharge Protection: Automatically stops charging when the battery is fully charged.

Over-discharge Protection: Prevents the battery from discharging below a safe voltage level.

Overcurrent Protection: Limits the current to prevent damage to the circuit and battery.

Short Circuit Protection: Detects and interrupts short circuits to avoid damage.

5. Operating Temperature:

Designed to operate efficiently within a temperature range of -10°C to +60°C.

Ensures reliable performance in various environmental conditions.

6. Standby Power Consumption:

Low standby power consumption to extend the battery life when not in use.

Typical standby current: <100μA.

7. Battery Capacity Support:

Supports battery capacities up to 20000mAh, with potential for higher capacities depending on the battery configuration.

Voltage range: 3.7V (single cell) to 7.4V (dual cell).

8. LED Indicator Specifications:

LED Voltage: Typically 2V-3V.

LED Current: Typically 10mA-20mA.

Indicators show charging, full charge, and power levels.

9. PCB Dimensions:

Standard size to fit most power bank cases, customizable based on user requirements.

Typical dimensions: 60mm x 30mm (varies by design).

10. Compliance and Certification:

Meets international safety standards and certifications (CE, FCC, RoHS).

Ensures compliance with quality and safety regulations.

This DIY power bank charger circuit board is an ideal solution for creating a high-capacity, reliable, and efficient power bank, offering excellent performance and safety features for a wide range of applications.