5v to 12v convert
I want to connect a portable solar powered rechargeable to 2 DC fans of 12v to cool my car.
1. I have 2 options of portable solar powered: (A) 1500mAh, outputs: 5.5V / 800mA (B) 2000mAh, outputs: 5V 500mA
which one is preffered to connect to those PC fans?
2. most of the PC fans are working at 12v. I don't quite sure if I'll build simple 5v to 12v regulator it will works and produce enough airflow.