The HW-387 Type-C USB 5V 1A TP4056 Lithium Battery Charger Module is a compact charging board designed for 3.7V/4.2V lithium-ion and 18650 batteries.
 
Key Specifications
• Input Voltage: 4.5V – 5.5V DC (via Type-C USB)
• Charging Voltage: 4.2V
• Max Charging Current: 1A (adjustable via resistor)
• Supported Batteries: 3.7V Lithium / 18650 cells
• Interface: Type-C USB
 
Core Features
• TP4056 Chipset: Provides reliable linear charging for single-cell lithium-ion batteries.
• Status Indicators: Red LED indicates charging in progress; blue/green LED indicates charging complete.
• Compact Size: Small footprint ideal for DIY electronics, power banks, and battery-powered prototypes.