3S 12V 10A Li-Ion Cell BMS Charging Protection Module

• Reliable Battery Protection System (BMS):
  This 3S 12V 10A BMS Module is designed to manage and protect 3-series (3S) lithium-ion battery packs, ensuring safe charging, discharging, and overall battery health.
• Designed for 3S Li-Ion Battery Packs:
  Supports 3 cells in series (11.1V nominal / 12.6V full charge), making it ideal for 18650 lithium-ion battery configurations and other Li-ion cells.
• 10A Continuous Current Support:
  Provides up to 10A continuous discharge current, suitable for low to medium power applications such as LED lighting, DIY power banks, small motors, and electronics projects.
• Comprehensive Protection Features:

Built-in safety mechanisms ensure reliable operation and long battery life:

• • Over-charge protection
  • Over-discharge protection
  • Over-current protection
  • Short-circuit protection
  • Cell balancing (in most variants)
• Overcharge & Over-Discharge Control:
  Automatically cuts off charging when voltage reaches safe limits (~4.2V per cell) and disconnects load when voltage drops too low (~2.7–3.0V per cell), preventing battery damage.
• Cell Balancing Function:
  Maintains equal voltage across all three cells to improve battery performance, efficiency, and lifespan.
• High Efficiency & Low Self-Consumption:
  Designed with low standby current and minimal power loss, ensuring efficient energy management.
• Compact & Lightweight Design:
  Small PCB size makes it easy to integrate into battery packs, portable devices, and custom electronics enclosures.
• Easy Connection Interface:

Clearly labeled pads for:

• • B+ / B- (Battery terminals)
  • B1, B2 (Cell balancing connections)
  • P+ / P- (Output / Load & Charging terminals)
• Wide Range of Applications:
  Suitable for various lithium battery-based projects:
  • 18650 battery packs
  • DIY power banks
  • Solar energy storage systems
  • LED lighting systems
  • Portable electronics
  • Robotics and Arduino projects

Specifications:

• Battery Type: Lithium-Ion (Li-Ion)
• Configuration: 3S (3 Cells in Series)
• Nominal Voltage: 11.1V
• Full Charge Voltage: 12.6V
• Continuous Current: 10A
• Overcharge Protection Voltage: ~4.2V ±0.05V per cell
• Over-discharge Protection Voltage: ~2.7–3.0V per cell
• Protection Functions: Overcharge, Over-discharge, Overcurrent, Short Circuit, Balancing
• PCB Type: Compact BMS Protection Board