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Unread 18-05-2011, 13:43
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Chris Mormile Chris Mormile is offline
Only1Battman
AKA: Battman
FRC #1676 (Pascack Pioneers)
Team Role: Electrical
 
Join Date: Nov 2009
Rookie Year: 2010
Location: Montvale
Posts: 6
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Lightbulb Re: Better Battaries for Driver Pratice

Quote:
Originally Posted by Chris Fultz View Post
you might want to reduce your driving time a bit to allow all of the motors to cool and be sure you don't damage anything. Depending on which motors you are using and what kind of loads they are seeing, you may be generating a lot of heat.

we are using window motors for our lift arm, and even with a gas assist on the lift we limit ourselves to about 8 - 10 minutes of practice time before letting everything cool.
haha. I keep telling everyone on our drive team and anyone who is with us that we need to allow the motors and other electronics to cool. But unsurprisingly no one listens. When we did our driver practice last Saturday, after about 6 batteries i smelled something weird. it almost smelled like burning electronics. But there was no magic smoke. so i went to feel the motors to see how warm they were, and almost burned my fingers. i told everyone that we needed a 15 min break to let everything cool. (which we did) After the break i could see a noticeable increase in performance.
Also we run super shifters with 2 Cims. We drive our robot around in high gear and when we hit the shift button we shift into the lower gear for more precise maneuvering.

If anyone with a good amount of knowledge in electric R/C's knows that when you start heating up your motor(s) they will degrade in performance. Also high mAh batteries will start to heat up they will start provide less voltage and your truck/car will start to go (slightly) slower.
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