Bisida 23S 72V 50A Lifepo4 Battery Management System User Manual

1. הקדמה

This manual provides essential information for the proper installation, operation, and maintenance of your Bisida 23S 72V 50A Lifepo4 Battery Management System (BMS). This BMS is designed to protect 23-series 72V Lifepo4 battery packs, ensuring their longevity and safe operation. Please read these instructions carefully before use.

2. שליסל פֿעיִקייטן

The Bisida 23S 72V 50A BMS incorporates advanced protection features and high-quality components to safeguard your battery pack.

• קייפל שוץ פאַנגקשאַנז: Includes overcharge protection, over-discharge protection, overcurrent protection, short-circuit protection, temperature protection, and downtime protection.
• Voltage Balance: Features passive balance to maintain cell voltage consistency, extending battery life.
• ברייט אַפּערייטינג טעמפּעראַטור קייט: Supports Lifepo4 battery charging and discharging from -20°C to 70°C.
• הויך-קוואַליטעט קאַמפּאָונאַנץ: Manufactured with excellent protective integrated circuit (IC) and Mosfet for robustness and reliability.
• NTC Temperature Control Probe: Equipped with a new generation NTC temperature control probe for precise temperature monitoring.

פיגורע 2.1: איבערview of the ten functional protections integrated into the BMS.

Figure 2.2: NTC temperature control probe for accurate temperature monitoring.

Figure 2.3: Balance function components on the BMS board, ensuring balanced cell voltages.

3. Setup and Wiring Instructions

Proper wiring is critical for the safe and correct operation of the BMS. Incorrect wiring can damage the BMS, battery pack, or connected devices. Always ensure the battery cells are balanced before connecting the BMS.

3.1 Pre-installation Notice

Before installing the BMS protective board, it is essential to match the voltage, capacity, and internal resistance of individual battery cells. The voltage difference between cells should not exceed 0.05V, the internal resistance difference should not be more than 5mΩ, and the capacity difference should be less than 30mAh. Failure to meet these conditions may prevent the battery pack from charging correctly.

3.2 Wiring Method for Common Port BMS

Follow these steps for wiring your BMS:

1. פאַרבינדן די B- terminal of the BMS to the negative terminal of the battery pack.
2. פאַרבינדן די C- terminal of the BMS to the negative terminal for both charging and discharging output.
3. All positive electrodes of the battery cells should be connected to the total positive pole of the battery pack.
4. Connect the balance wires sequentially, starting from the black wire (B0 or B-) and proceeding in ascending order of voltage (B1, B2, B3, etc.) up to B+. Ensure each balance wire is connected to its corresponding cell tap.

פיגורע 3.1: עקסample wiring diagram for a serial number connection. This analogy can be extended to other serial protection board wiring methods.

וויכטיק: Always double-check all connections before applying power to prevent damage.

4. אַפּערייטינג באדינגונגען

The Bisida BMS is designed for Lifepo4 batteries with a nominal voltage of 3.2V per cell. The charging and discharging voltage zones are from 2.3V to 3.65V per cell.

• נידעריק טעמפּעראַטור פּראַטעקשאַן: Activates at -20°C.
• הויך טעמפּעראַטור שוץ: Activates at 70°C.

Specific parameter details may vary with different voltages and currents. Refer to the specifications table for precise values.

5. ספּעסאַפאַקיישאַנז

The following table outlines the key technical specifications and protection parameters for the Bisida 23S 72V 50A Lifepo4 BMS.

Figure 5.1: Lifepo4 Data and Protection Parameters. Note: Internal resistance and self-consumption are dynamic. Test items marked with '*' mean mass production product sampling item or reference item; 'O' indicates the product does not have this function or is not controlled.

6. וישאַלט

To ensure optimal performance and longevity of your BMS and battery pack, consider the following maintenance guidelines:

• רעגולער דורכקוק: קאָנטראָלירט פּעריִאָדיש אַלע וויירינג פֿאַרבינדונגען פֿאַר שטרענגקייט און וואונדער פון קעראָוזשאַן אָדער שעדיקן.
• ינווייראַנמענאַל טנאָים: Operate the BMS within its specified temperature range. Avoid exposure to extreme temperatures, moisture, or dust.
• צעל באַלאַנסינג: The BMS provides passive balancing. For long-term health, ensure your battery cells are well-matched in voltage, capacity, and internal resistance during initial assembly.
• רייניקונג: If necessary, gently clean the BMS board with a dry, soft brush to remove any dust accumulation. Do not use liquids.

7. טראָובלעשאָאָטינג

If you encounter issues with your BMS, refer to the following common troubleshooting steps:

7.1 Battery Pack Not Charging

• Check Cell Matching: פאַרזיכערן אַז די וואָלtage, capacity, and internal resistance of individual battery cells meet the pre-installation requirements (voltage difference < 0.05V, internal resistance difference < 5mΩ, capacity difference < 30mAh). Significant discrepancies can prevent charging.
• באַשטעטיקן וויירינג: Double-check all wiring connections, especially B-, C-, and the balance wires, according to the wiring diagram (Figure 3.1). Loose or incorrect connections are a common cause of issues.
• דורכקוקן פֿאַר שעדיקן: Look for any visible damage to the BMS board, wires, or battery cells.
• טעמפּעראַטור שוץ: Ensure the battery pack and BMS are operating within the specified temperature range (-20°C to 70°C). Extreme temperatures can trigger protection modes.

7.2 Overcurrent or Short-Circuit Protection Triggered

• רעדוצירן מאַסע: If overcurrent protection is triggered, reduce the load connected to the battery pack.
• Check for Shorts: Immediately disconnect power and inspect all connections and devices for any short circuits.
• באַשטעטיק: Some protections may automatically reset once the fault condition is removed. If not, a power cycle (disconnecting and reconnecting the battery pack) might be necessary after ensuring safety.

אויב פראבלעמען בלייבן נאך נאכפאלגן די שריט, קאנטאקטירט קאסטומער סופארט פאר ווייטערדיגע הילף.

8. וואָראַנטי און שטיצן

Bisida products are manufactured to high-quality standards. For warranty information or technical support, please refer to the product packaging or contact your retailer. Keep your purchase receipt as proof of purchase.