Micro USB 5V Power Bank Module for 3.7v Battery 18650 | Portable DIY Power Bank Circuit Board

Technical Specifications

• Product Type: Power Bank Module / Charging & Boost Board
• Input Port: Micro USB
• Input Voltage: 5V DC
• Battery Compatibility: 3.7V Li-ion / Li-Po (18650 Battery)
• Output Voltage: 5V DC
• Output Current: Up to 1A (Typical)
• Charging Function: Yes (Built-in Charger Circuit)
• Protection: Overcharge, Over-discharge, Short Circuit
• Indicator: LED Charging / Full Status
• Efficiency: High Boost Conversion
• Application: DIY Power Bank, Portable Charger
• Note: No Warranty

Product Description

The Micro USB 5V Power Bank Module is a compact DIY power bank circuit board designed to convert power from a 3.7V 18650 lithium battery into a stable 5V USB output. It features a built-in charging and protection circuit, making it ideal for creating portable power banks, emergency chargers, and battery-powered projects.

With easy Micro USB input charging and USB output support, this module is perfect for students, hobbyists, and DIY electronics enthusiasts. Simply connect an 18650 battery and enclosure to build your own lightweight, reusable power bank.