Adding a Fan to the car what voltage?

[Shuntfield]

Hi All

I have the fan mounting kit for my Schumacher Cat K2. The fan sizes are 40mm or 50mm.

I have somewhat of a dilemma with the fan voltage, as a 2S battery has the voltage 6-8.2v, so what voltage fan do I buy?

Do I get a 5v fan and hope that it doesn't prematurely fail? or get a 5v regulator? or do I get a 12v and hope that it runs from the BEC?

A 9V fan would be ideal but they are difficult to find.



Graham