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

Key Features

• Input: Micro USB 5V
• Output: 5V USB for charging devices
• Battery Compatibility: 3.7V Li-ion 18650 battery
• Portable Design: Compact and lightweight for DIY power bank projects
• Circuit Protection: Overcharge, over-discharge, and short-circuit protection
• DIY Friendly: Easy to assemble with 18650 battery
• Versatile Use: Can charge smartphones, tablets, and other USB devices
• Durable PCB: High-quality circuit board for long-lasting use

Description 
This Micro USB 5V Power Bank Module is designed for use with a 3.7V 18650 battery, providing a reliable and portable power source. Its compact circuit board supports DIY power bank projects, allowing efficient charging and discharging with stable 5V output. Ideal for custom electronics, this module ensures compatibility and safety while maintaining a high conversion efficiency suitable for powering small devices on the go.