1S 18650 Battery Management Module – 5V 2A Dual USB Power Bank

The 1S 18650 Battery Management Module is a compact power bank solution designed for building custom rechargeable battery packs using parallel-connected 3.7V lithium-ion cells. It integrates battery charging, protection, and 5V boost conversion into a single board, providing up to 2A output through dual USB ports. The module features multiple protection mechanisms, onboard battery level indicators, and Micro USB charging input for reliable and safe operation. It is suitable for DIY power banks, portable electronics, backup power systems, and battery-powered projects.

• Integrated 3.7V to 5V boost converter

• Supports 2 to 6 parallel 18650 batteries

• Dual USB 5V output ports

• Up to 2A output current

• Micro USB charging input

• Four-level battery capacity indicators

• Overcurrent protection circuit

• Overvoltage protection

• Undervoltage protection

• Overcharge protection

• Over-discharge protection

• High-efficiency power conversion

• Compact PCB design

• Suitable for custom power bank projects

• Compatible with Li-ion battery packs

• Battery Configuration: 1S Lithium-Ion Battery Pack

• Supported Batteries: 18650 Li-Ion Cells or Equivalent 3.7V Batteries

• Battery Connection: 2–6 Cells in Parallel

• Input Interface: Micro USB

• Input Voltage: 5V DC

• Input Charging Current: 1A or Higher

• Output Voltage: 5V DC

• USB Outputs: 2 × USB Type-A

• Maximum Output Current: 2A

• Battery Capacity Indicator: 4-Level LED Display

• Boost Converter Function: 3.7V to 5V Step-Up Conversion

• Protection Functions: Overcurrent Protection

• Protection Functions: Overvoltage Protection

• Protection Functions: Undervoltage Protection

• Protection Functions: Overcharge and Over-Discharge Protection

• Application Type: DIY Power Bank and Portable Power Systems

  
  

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