power source for the esc fan?

[luvsrc]

i bought the fan from radioshack, i believe it is a 12 volt fan just about the size of the esc, how to hook up the connection to the main batts ( i'm using lipo), through the wire on the esc? so that everytime i hook the batts to the esc, the fan will also be turn on? thanks guys

12v off receiver may be a little weak. It will do really well if you connect directly to the batteries, but it may shorten the life of the fan. I am currently running two 5v off channel 3 and so far it has been perfect.

Good Luck Bro.

[BrianG]

If you wanta quick and dirty way to reduce the voltage to the fan by a little (1 or 2 volts), then two or three diodes in series of the fan power lead will work. Each diode drops about 0.7v. Fans don't take much current, so standard RadioShack 1A diodes would do. That'll take the 14.4v down to 12 effectively.