Product Overview

This power module is designed to supply reliable dual voltage output of 5V and 12V, suitable for various electronic devices including mobile phones and other small appliances. It features a DIY no-solder design, enabling easy and quick installation by electronic enthusiasts. The module can be powered by three 18650 batteries connected in series, providing a stable and high-capacity energy source.

Key Features

• Supports dual voltage output: 5V regulated USB output and 12V direct current output.
• No welding required, facilitating fast assembly and installation.
• Compatible with standard 18650 lithium batteries (user supplied), offering high capacity and endurance.
• Equipped with a convenient power switch for easy control and enhanced safety.
• Standard DC 5.5*2.1mm interface for broad adapter compatibility.

Technical Specifications

Battery capacity that can be loaded is 3 × 3.7V × 3400mAh = 37 watt-hours. Output power includes a DC port output of 12V at 3A (unregulated) and a regulated USB port output of 5V at 2-3A. The DC output voltage varies with battery charge level, featuring full 12.6V output and low voltage protection activating at 8V.

The product incorporates an internal charging current limiting circuit operating at approximately 12.6V and 0.4A, equivalent to around 5 watts charging power. This ensures safe charging when used with a 12V power supply. Charging voltage range is between 12 to 13V to prevent damage and incomplete charging.

Protection circuitry includes overcharge protection at 4.25V per cell (3 cells), low voltage cutoff at 2.75V per cell, and overcurrent detection through voltage monitoring. It is designed for use within a temperature range of -20°C to 60°C.

Applications

Ideal for powering small appliances that do not require regulated voltage such as electric motors, LED lights, stereos, solenoid valves, and radios. Its practical design allows for effective use by hobbyists and electronic enthusiasts.

Package Contents

Battery box × 1