Portable Emergency Phone Charger Powered by 2Pcs AA Batteries with Micro USB/ USB-C/ for Universal Phone

Product instruction:

Use 2pcs AA/AAA Battery,Or rechargeable battery.

Built in protection circuit,when the AA battery used or the device charged full,it will stop charge by itself.

Input Voltage:1.5V-3V

Output Voltage:5V

Output Current:500mAh-1500mAh