This BMS board is designed for 2S (two-cell) 18650 Li-ion lithium battery packs, offering a comprehensive protection system to ensure safe and efficient charging and discharging. It's an essential component for maintaining battery longevity and performance in various applications.

Key Features:

• High-precision voltage detection for accurate monitoring of each battery cell.
• Integrated overcurrent detection and short-circuit protection with auto-recovery.
• Controlled charging and discharging through a MOS tube.
• Wide operating temperature range from -40°C to +80°C.
• Low power consumption for extended battery life.

Technical Specifications:

• Charging Voltage: 9V DC
• Maximum Continuous Discharge Current: 4A
• Overcharge Protection:
  • Detection Voltage: 4.29V ±0.025V
  • Detection Delay Time: 1s
  • Recovery Voltage: 4.05V ±0.025V
• Over-discharge Protection:
  • Detection Voltage: 3V ±0.1V
  • Detection Delay Time: 128ms
  • Recovery Voltage: 3.2V ±0.1V
• Overcurrent Protection:
  • Detection Voltage: 200mV
  • Detection Current: 9.8A
  • Delay Time: 12ms
  • Recovery Status: Auto Recovery
• Short-circuit Protection:
  • Detection Delay Time: ≤50μs
  • Recovery Status: Auto Recovery
• Operating Temperature Range: -40°C to +80°C
• Product Size: ~ 3.5 x 1 cm
• Weight: 1.65g