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Unread 28-02-2006, 07:30
Unsung FIRST Hero
Al Skierkiewicz Al Skierkiewicz is offline
Broadcast Eng/Chief Robot Inspector
AKA: Big Al WFFA 2005
FRC #0111 (WildStang)
Team Role: Engineer
 
Join Date: Jun 2001
Rookie Year: 1996
Location: Wheeling, IL
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Re: Car Battery for post-season bot

Eric,
If you correctly size the motor to wheel reduction the current in the motors will be low. The reason we have been suggesting a larger battery is the distance/time that it will take to get around the track. The best designs in our competition will get 3-4 matches from a single battery but there is rarely continuous current draw. With a larger battery, you should be able to run for a much longer and continuous period without worrying about the battery becoming discharged.
If the goal is to get someone around the track then a simple design should work fine. If the goal is to beat other teams around the track then that will require a little more design time and some better engineering.
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Good Luck All. Learn something new, everyday!
Al
WB9UVJ
www.wildstang.org
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Storming the Tower since 1996.