Product Overview

The DIY 18650 lithium battery 2in1 charge discharge board module is a compact power management module that combines battery charging and 5V boost output functions for creating custom 18650 lithium battery power banks. It provides safe charging, battery protection, and stable USB power output for portable electronic devices.

Key Features

• Combines charging and discharging functions in a single module.

• Designed for single 18650 Li-ion battery applications.

• Provides regulated 5V USB output for powering devices.

• Includes protection against overcharge, over-discharge, short circuit, overload, and overheating.

• Supports automatic current adjustment for connected loads.

• Compact and lightweight design for DIY projects.

• Suitable for portable power and battery-powered electronics.

Technical Specifications

• Product Type: 2-in-1 Charge & Discharge Power Bank Module

• Battery Type: Single 18650 Li-ion Battery

• Input Voltage: 3.7V – 5.5V DC

• Charging Voltage: 4.2V

• Charging Current: 1A

• Output Voltage: 5V DC

• Output Current: Up to 1A

• Efficiency: Approximately 85%

• Battery Cut-off Voltage: 2.9V

• Protection: Overcharge, over-discharge, short circuit, overload, and over-temperature protection

• Output Interface: USB Port

• Dimensions: Approx. 23 × 17.5 × 12 mm

• Weight: Approx. 3 g

• Package Contents: 1 × 2-in-1 Charge Discharge Board Module

Applications

• DIY 18650 lithium battery power banks.

• Portable USB charging solutions.

• Power supply for Arduino, ESP32, and IoT projects.

• Rechargeable electronic gadgets.

• Robotics and embedded systems.

• Battery-powered prototypes and educational projects.