Dual Micro USB 5V 1A/2.1A Power Bank Li-Ion Battery Charger Module with Display

This is a DIY power bank module with dual USB ports and a display. The module is perfect for DIY mobile power boost power banks with 18650 cells. 

The module comes with protection charging, overcharge protection, over-discharge protection, and overcurrent protection. It has an intelligent output device, that after charging full, automatically stops charging, that prevents the phone to overcharge as well as provides stable voltage and current that makes sure that users devices will not harm. 

Features

• Dual USB interface (5V 1A and 5V 2.1A)
• Intelligent digital display
• Compatible with Li-ion battery
• Stable output voltage and current

Specification

• Input charging voltage: 5V
• Input charging current: 1A
• Output voltage/current
  • 5V/1A
  • 5V/2.1A
• Overcharge protection: 4.250V overcharge protection release: 4.100V
• Over-discharge protection: 2.900V over-discharge protection release: 3.00V