DNA Charger by Evolv

Our Micro-USB charging module lets you add the functionality of onboard charging to your DNA 12 and DNA20D projects or can be used as a standalone charger for non-DNA projects. It is designed for charging 3.7V 1S Li-Ion and Li-Poly cells. An onboard status LED illuminates red when charging, green when fully charged, and orange when no battery is present. Mounting holes for #2 screws are provided for easy attachment.

Specifications:

Input Voltage: 4.5-5.5VDC
Charge Current: 500mA
Charge Voltage: 4.2V
Input Interface: Micro-USB