JSDsolar V2. Заміна плати BMS в акумуляторі JSDsolar на Jikong B1A8S20P.

Introduction

This tutorial provides a step-by-step guide on how to replace the BMS (Battery Management System) in a JSDsolar battery with the Jikong B1A8S20P model, which features a 1A active balancer. This process is essential for improving battery performance and longevity.

Step 1: Gather Necessary Tools and Materials

Before starting the replacement process, ensure you have the following tools and materials ready:

• New Jikong B1A8S20P BMS
• Screwdriver set
• Soldering iron and solder
• Multimeter
• Insulating tape
• Safety goggles and gloves

Tip: Make sure to work in a well-ventilated area and handle all components with care to avoid damage.

Step 2: Prepare the Battery for Disassembly

1. Disconnect the Battery: Ensure that the battery is completely disconnected from any power source.
2. Remove the Battery Case: Use a screwdriver to remove any screws securing the battery case. Carefully lift the cover off to expose the internal components.
3. Inspect the Current BMS: Take note of how the existing BMS is connected, including wire placements and connections.

Step 3: Desolder the Old BMS

1. Identify the Connections: Use the multimeter to identify the positive and negative connections of the existing BMS.
2. Heat the Soldering Iron: Plug in your soldering iron and let it heat up to a suitable temperature.
3. Desolder Connections: Carefully heat the solder joints on the old BMS and remove the wires. Ensure not to damage the battery cells during this process.

Common Pitfall: Avoid overheating the solder joints as this can damage the battery cells.

Step 4: Install the New BMS

1. Position the New BMS: Place the new Jikong B1A8S20P BMS in the same position as the old one.
2. Solder Connections: Solder the wires from the battery cells to the corresponding terminals on the new BMS. Ensure correct polarity to avoid damage.

# Example of Connection
- Positive terminal -> Positive BMS terminal
- Negative terminal -> Negative BMS terminal

3. Secure the BMS: Once all connections are soldered, ensure the BMS is securely fixed in place.

Step 5: Reassemble the Battery

1. Replace the Battery Cover: Carefully place the battery cover back on and secure it with screws.
2. Reconnect the Battery: Reconnect the battery to the power source, ensuring all connections are tight and secure.

Step 6: Test the New BMS

1. Power On the Battery: Turn on the battery and monitor for any irregularities.
2. Use a Multimeter: Check the voltage output to ensure the new BMS is functioning correctly.

Tip: If you notice any issues, double-check your connections and solder joints.

Conclusion

Replacing the BMS in your JSDsolar battery with a Jikong B1A8S20P can enhance battery performance and safety. By following these steps, you can effectively complete the replacement process. If you encounter any issues, consider revisiting your connections or seeking professional assistance. Happy DIY-ing!