Rakstore IP2312 Type-C USB 3A Lithium Battery Charging Board User Manual

1. Introduction

This manual provides instructions for the Rakstore IP2312 Type-C USB 3A Lithium Battery Quick Fast Charging Board. This board is designed for efficient charging of polymer ternary lithium batteries, converting a 5V Type-C USB input to a 4.2V or 4.35V charge cut-off voltage. It features high current output and integrated charging status indicators.

2. Safety Information

• Always handle electronic components with care to prevent damage.
• Ensure correct polarity when connecting batteries to avoid short circuits or damage to the charging board and battery.
• Do not exceed the specified input voltage (4.5V~5.5V) or current limits.
• Keep the charging board away from moisture, extreme temperatures, and flammable materials.
• Disconnect power before making any connections or disconnections to prevent electrical hazards.
• This product is not a toy. Keep out of reach of children.

3. Product Overview

Key Features:

• Input Voltage: 4.5V to 5.5V via Type-C USB.
• Charge Cut-off Voltage: Selectable 4.2V or 4.35V for polymer ternary lithium batteries.
• Charging Current: Up to 3A, adjustable by modifying resistance.
• Indicator Lights: Red for charging status, Blue for full charge status.
• Conversion Efficiency: Up to 95% (e.g., 3A at 93%, 2A at 94%, 1A at 95%).

Component Identification:

Figure 1: Top view of the Rakstore IP2312 charging board. This image displays the Type-C USB input port on the left, the central IP2312 integrated circuit, an inductor labeled '2R2', and clearly marked battery connection points (BAT+, BAT-) on the right. Input power connections (+IN, -IN) are also visible.

Figure 2: Detailed top view of the Rakstore IP2312 charging board. This image provides a closer look at the IP2312 chip, various surface-mount resistors and capacitors, and the input/output pads, offering a clear view of the component layout.

Figure 3: Rakstore IP2312 charging board with dimensions. This image shows the board's length as approximately 30.9mm and width as approximately 14.8mm, providing essential physical specifications for integration into projects.

Figure 4: Bottom view of the Rakstore IP2312 charging board. This image reveals the solder pads for various connections and the four mounting holes located at each corner of the board, facilitating secure installation.

4. Setup

1. Identify Connections: Locate the Type-C USB input port, the +IN and -IN pads for alternative 5V input, and the BAT+ and BAT- pads for battery connection.
2. Connect Power Input: Connect a 5V power source to the Type-C USB port. Alternatively, solder 5V input wires to the +IN and -IN pads, ensuring correct polarity.
3. Connect Battery: Connect your polymer ternary lithium battery to the BAT+ and BAT- pads. Ensure BAT+ connects to the positive terminal of the battery and BAT- connects to the negative terminal. Incorrect polarity can damage the board and battery.
4. Current Adjustment (Optional): The charging current is factory set or can be adjusted by modifying a specific resistance on the board. Refer to the IP2312 datasheet for detailed instructions on current adjustment if a different charging current is required.

5. Operating Instructions

1. Initiate Charging: Once the 5V power source and the battery are correctly connected, the charging process will begin automatically.
2. Monitor Charging Status:
   • A red indicator light will illuminate, indicating that the battery is currently charging.
   • A blue indicator light will illuminate when the battery has reached its full charge capacity, and the charging process has terminated.
3. Disconnection: Once the blue indicator light is on, you may disconnect the battery. Disconnect the 5V power input when charging is complete or when the board is not in use.

6. Maintenance

• Keep the charging board clean and free from dust and debris. Use a soft, dry brush or compressed air for cleaning.
• Avoid exposing the board to liquids or high humidity.
• Periodically inspect all connections for secure contact and signs of wear or corrosion.
• Store the board in a cool, dry environment when not in use.

7. Troubleshooting

• No Indicator Lights / No Charging:
  • Verify that the 5V power source is active and correctly connected to the Type-C port or +IN/-IN pads.
  • Check the Type-C USB cable for damage or proper insertion.
  • Ensure the battery is correctly connected to BAT+ and BAT- with the correct polarity.
  • Confirm the battery is not fully charged already.
• Board Overheating:
  • Ensure the charging current is appropriate for the connected battery. Excessive current can cause overheating.
  • Provide adequate ventilation around the charging board.
  • Check for any short circuits in the wiring.
• Battery Not Reaching Full Charge:
  • Verify the battery's health and capacity.
  • Ensure the charge cut-off voltage setting (4.2V/4.35V) is appropriate for your specific battery type.

8. Specifications

9. Warranty and Support

For warranty information, technical support, or inquiries regarding the Rakstore IP2312 charging board, please refer to the seller's policies on the platform where the product was purchased or contact Rakstore directly through their official support channels. Please have your purchase details and model number (IP2312) available when seeking support.