Tp4056 Charging Module (Ordinary)

Overview

Powered by the efficient CSM4056T charging IC, this compact module provides safe, constant-current/constant-voltage (CC/CV) charging for single-cell 3.7V Lithium-ion and Lithium-polymer batteries (such as 18650, 14500, and 16340 cells). Equipped with a reversible USB Type-C connector and onboard battery protection circuitry, it ensures reliable operation for your custom electronics and IoT builds.

Key Features

• Modern Type-C Input: Features a robust USB Type-C receptacle for convenient, reversible power input from standard 5V USB chargers or ports.
• Precise Charging: Constant-current / constant-voltage linear charging architecture with a factory-preset 4.2V float voltage (high precision accuracy).
• Adjustable Charge Current: Delivers up to 1000mA (1A) of charging current, which can be easily adjusted by swapping the board's surface-mount programming resistor.
• Integrated Battery Protection: Built-in protection chip prevents overcharge, over-discharge (under-voltage cutout around 2.4V–2.5V), overcurrent, and short circuits.
• Dual Status Indicators: Onboard LEDs clearly display status—Red indicates active charging, and Blue/Green indicates the charge cycle is complete.
• Automatic Recharge: Automatically restarts the charge cycle if the battery voltage drops below the threshold when left connected to power.

Technical Specifications

Wiring & Safety Guidelines

• IN+ and IN-: Connect to your 5V USB Type-C power source or external 5V supply pads.
• B+ and B-: Connect directly to the battery positive and negative terminals. (Caution: Reversing battery polarity will permanently damage unprotected variants or trigger safety lockouts).
• OUT+ and OUT-: Connect to your load (the circuit or microcontroller you are powering).