1S 3.7V Li-ion Lipo Battery Charging Module with 1A Current and USB Input for DIY PCB Projects, 4.2V Output Compatible with 3.7V Lithium Batteries

1S 3.7V Li-ion Lipo Battery Charging Module with 1A Current and USB Input for DIY PCB Projects, 4.2V Output Compatible with 3.7V Lithium Batteries

• Rechargeable Battery Charging Circuit: 1S 3.7V charging module for LiPo, Lithium, and Li-ion batteries with automatic cycle termination when charge current drops to 100mA; restarts charging when battery voltage falls below 4.05V, reliable performance for DIY power projects
• Precharge Function Activated at Low Voltage: When battery voltage is lower than 2.9V, the Rechargeable Battery Charging Circuit initiates a 100mA precharge mode to safely condition depleted cells before full charging begins
• Optimized Input and Output Parameters: Supports 5~6V input voltage with stable 4.2V output and 1A charging current; compact size of 12*15*3.5mm (excluding 1mm USB socket protrusion) fits tight spaces in portable device builds
• USB-Powered Design for Convenient Integration: The Rechargeable Battery Charging Circuit uses standard USB power sources, making it suitable for use in general battery management systems requiring simple, -and-play charging control
• Cycle Management Mechanism Enhances Longevity: By charge current and voltage thresholds, this Rechargeable Battery Charging Circuit helps avoid over-discharge and overcharge scenarios while supporting balanced charge cycles for improved cell lifespan