Battery cool down before charging?
 

Should you let your batteries cool off after you run before recharging them?

Or do you need to let them cool off after chargiing them before using them?

Cool them off before charging and re-running them - this will help them recover after discharging. After charging you can use them immediately. I am assuming that you are speaking of NIMH cells....

You will notice better punch if you use the batteries straight off the charger, not letting them cool down.

some guys that race around were i live keep there batteries at 130f all day on race day

To me it really depends on the temps of the batteries. If they 150F or so let them cool. If they about 100F I wouldn't worry so much.