TP4056 5V 1A 18650 Lithium Battery Charging Board - USB C

Description

The 5V 1A 18650 Lithium Battery Charging Board uses the TP4056 chip, a complete single-cell lithium-ion charger with constant current/constant voltage linear charging. Designed for portable applications, it features a heat-sink-equipped SOP40 package and requires minimal external components. This module supports USB power supply or adapter power supply and includes built-in protection features such as overcharge, discharge, and overcurrent protection.

Thanks to its internal PMOSFET architecture and anti-reverse charging path, no external isolation diode is needed. The TP4056 automatically adjusts charging current under high power or temperature conditions to prevent overheating. Charging voltage is fixed at 4.2V, and the current can be set externally via a resistor. When charging completes, the module enters a low-current state to minimize battery leakage.

Ideal for DIY electronics, battery-powered projects, and portable devices requiring safe and efficient lithium battery charging.

Technical Details / Specs

• Power Mode: Room electrical / hard wiring
• Operating Voltage: ≤36V
• Battery Properties: Without Battery
• Chip: TP4056
• Charging Accuracy: ±1.5%
• Input Voltage: 4.5V – 5.5V
• Fully Charged Voltage: 4.2V ± 1%
• Charging Current: 1A adjustable (recommended: 37% of battery capacity)
• LED Indicator: Red = Charging, Green = Fully Charged
• Input Interface: Micro USB / Mini USB / Type-C
• Working Temperature: -10°C to +85°C
• Reverse Polarity Protection: No
• Battery Overcharge Protection Voltage: 4.28V
• Battery Overcharge Boost Voltage: 4.00V
• Battery Discharge Protection Voltage: 3.0V
• Battery Discharge Termination Voltage: 3.2V
• Battery Overcurrent Protection: 3A
• Cooling Method: Natural heat dissipation
• Additional Features:
  • Automatic charging termination
  • Low-current standby mode
  • Battery temperature detection
  • Undervoltage lockout
  • LED status pins