Dual Micro USB 3.7v to 5V 2A Power Bank DIY 18650 LiPo Charger

The Dual Micro USB 3.7V to 5V 2A Mobile Power Bank Charging Module is designed for DIY enthusiasts to create their own mobile power banks using 18650 lithium batteries. It features dual USB output ports, built-in lithium battery protection IC, and a 4-level LED lamp display for power indication.

  Features:  

• 4-level LED lamp display for power indication, with intelligent automatic shutdown in not working state
• Built-in lithium battery protection IC for over-current, over-voltage, and under-voltage protection
• Dual USB output ports
• Input requirements: 5V constant voltage power supply for charge input, preferably with a charger rated at 5V 1A or above

  Specifications:  

• Input Port: Micro USB
• Output Port: USB
• Input Voltage: 3.7V to 5V
• Output Parameters: 5V 1A / 5V 2A
• Dimensions: 68mm (Length) x 34.5mm (Width) x 8.5mm (Height)
• Weight: 12g

  Installation Tips:  

• Connect batteries in parallel with voltage between 3.2V to 4.2V
• Connect battery to the motherboard B+ for positive and negative for negative
• Do not mix new and old batteries, or different brands/models of batteries

  Compatible Batteries:  

• 18650 batteries
• Cell phone batteries
• Flat-panel batteries
• MP3 batteries
• Any 3.7V to 4.2V polymer lithium battery

  Package Includes:  

• 1 x Dual Micro USB 3.7V to 5V 2A Power Bank Charging Module

This module provides a convenient solution for creating your own mobile power bank, suitable for various battery types and offering reliable protection features.