Product Description

Product Parameters

If you need customized services, please consult customer service for details.

Electrical Specifications

• Charge Voltage: Li-ion: N(strings) × 4.2V
• Discharge Current (A): 30, 40, 50, 60, 80, 100, 120, 150, 200, 250, 300, 400, 500
• Discharge Overcurrent Protection Value (A): 45, 60, 75, 90, 120, 150, 180, 225, 300, 375, 450, 600, 750
• Charge Current (A): 15, 20, 25, 30, 40, 50, 60, 75, 100, 125, 150, 200, 250
• Charge Overcurrent Protection Value (A): 45, 60, 75, 90, 120, 150, 180, 225, 300, 375, 450, 600, 750

Protection Features

• Over Charge Protection:
  • Detect Voltage: Li-ion: 4.25 ± 0.05V
  • Release Voltage: Li-ion: 4.15 ± 0.05V
  • Balance Voltage: Li-ion: 3.8V
  • Balance Current: 30 ± 5mA
• Over Discharge Protection:
  • Detect Voltage: Li-ion: 2.7 ± 0.05V
  • Release Voltage: Li-ion: 2.8 ± 0.05V
  • Protection Delay: 1S
  • Release Condition: OFF load
• Short Circuit Protection:
  • Protection Condition: Short circuit of external load
  • Detect Delay: 200~500µS (Subject to actual test)
  • Self Consumption:
  • Working Current: 55mA
  • Sleeping Current (over-discharge): 800µA
  • Release Condition: OFF load

Operating Conditions

• Working Temperature:
  • Charge: -40~65°C
  • Discharge: -40~70°C (Customizable)
• Storage Temperature Range: -40~85°C

Package Includes

• 1 x BT
• 1 x Cable
• 1 x Battery Protection Board (Regular version)

The appearance and weight of products with different currents may vary. Please refer to the actual product appearance. Thank you for your understanding.

Protective Board Connection Instructions

1. Special Attention:
   • The wire cables from different manufacturers may not adhere to the same standards. Ensure to use matching cables.
   • The colors of B- and P- lines from different manufacturers may differ; pay attention to the B- and P- marks.
2. Do not insert the cable into the BMS when welding sampling wire cables.
3. The cable connects the total negative electrode B- from the fine black line. The second wire (red wire) connects to the positive pole of the first string of batteries. Connect each string of batteries' positive electrodes in sequence until reaching the last wire cable of the total positive B+.
4. After connecting the cable, do not insert the plug into the BMS directly. Measure the voltage between each two adjacent metal terminals on the back of the plug. For:
   • Ternary lithium battery: Voltage should be 3.0~4.15V
   • Iron-lithium battery: Voltage should be 2.5~3.6V
   • Lithium titanate battery: Voltage should be 1.8~2.8V
   Ensure the voltage is correct before proceeding to the next step.
5. Attach the BMS B-line (blue thick line) to the total battery negative electrode. The B-line length should not exceed 40cm.
6. Insert the wire cable into the BMS.

Post-Connection Checks

1. Verify whether the voltage of battery B+, B- equals the voltage of B+ and P-. If the voltages are equal, the BMS is functioning normally. If not, recheck the wiring sequence.
2. The positive electrodes of the charging and discharging ends connect directly to the total positive pole B+ of the battery. The same port BMS's negative charge and discharge poles connect to the BMS's P- point. The branch BMS wiring method connects the charging negative to C- and the discharge negative to P-.
3. If you encounter any problems, please contact customer service for assistance.