TP4056 Type-C 1A Lithium Battery Charger Module with Protection

TP4056 Type-C 1A Lithium Battery Charger Module – With Overcharge & Short-Circuit Protection

The TP4056 Lithium Battery Charger Module with USB Type-C input is a compact, single-cell Li-Ion/LiPo charging solution with integrated overcharge, over-discharge, and short-circuit protection. It is the go-to charging module for 18650 cells and single-cell LiPo packs used in portable IoT and DIY projects.

Key Specifications

• Charger IC: TP4056
• Protection IC: DW01A + FS8205A (integrated)
• Input: USB Type-C, 4.5V – 5.5V
• Charge Voltage: 4.2V (constant voltage)
• Charge Current: Up to 1A (adjustable via R3 resistor)
• Battery Type: Single-cell Li-Ion / LiPo (3.7V)
• Protection: Overcharge, over-discharge, short-circuit, reverse polarity
• Indicator LEDs: Red (charging) / Blue (full)

Compatibility & Use Cases

This module is widely used in portable builds with Arduino, ESP32, NodeMCU, and other battery-powered IoT devices. Common applications include:

• 18650 Li-Ion cell charging for portable IoT nodes
• LiPo battery charging for wearables and robots
• DIY power bank and USB charger circuits
• Solar-powered IoT sensor node charging systems
• Portable Arduino and ESP32 project power management

The B+ and B− pads connect to the battery; OUT+ and OUT− provide protected output to your circuit. Always use with a matching 3.7V single-cell battery.

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