40mm 12V Cooling Fan
 

Will a 12V DC 40mm cooling fan run off my extra receiver plug to cool my motor?Its over 90 here in the midwest.

If it does run, it will run very slow. If running 3s or 4s, hook the fan directly to the battery. If running over 4s, you can use a linear regulator to bring down the voltage: http://rc-monster.com/forum/showthread.php?t=5377

or get a 6 volt fan that will plug into the receiver.

I just run my 12v fans straight off the batteries. They spin pretty quick on 6s, but it hasn't killed them. Most of the time I use 4s though, so I don't know how long they would last if I was only ever using 6s.

yup, i use 40mm 12 fans on 4s straight wired to the battery...spins very powerful. and hasnt died yet. its good to know that it will work on 6s too, because i may want to rig a fan onto that truck as well.

I have ran 40mm fans off 5s and 6s without failure, they are pretty beefy units, as stated- run it off the main battery and you will be fine.

where do you guys get your fans from. i got mine from ebay. 3 fans for $5 shipped. unfortatly they dont sell them for that cheap anymore. now theyre like 3 bucks apiece!

i got mine from my school's robotics team, freebies :)