View Single Post
  #9   Spotlight this post!  
Unread 01-02-2008, 14:13
JesseK's Avatar
JesseK JesseK is offline
Expert Flybot Crasher
FRC #1885 (ILITE)
Team Role: Mentor
 
Join Date: Mar 2007
Rookie Year: 2005
Location: Reston, VA
Posts: 3,716
JesseK has a reputation beyond reputeJesseK has a reputation beyond reputeJesseK has a reputation beyond reputeJesseK has a reputation beyond reputeJesseK has a reputation beyond reputeJesseK has a reputation beyond reputeJesseK has a reputation beyond reputeJesseK has a reputation beyond reputeJesseK has a reputation beyond reputeJesseK has a reputation beyond reputeJesseK has a reputation beyond repute
Re: Serious Problem of Unknown Origin

Quote:
Originally Posted by Kevin Sevcik View Post
I'm highly skeptical of this. In olden times before plastic cases for batteries, this was true as slightly porous casing materials could would become moist on a damp concrete floor and let some current flow, draining the battery, but those days are a rather long way behind us. There simply isn't any possible way for batteries to self-discharge faster than normal just because they're on the floor.

If your robot was moving slowly for the first 15 seconds of a match, I think it's much much more likely that there was a programming error in your autonomous mode that was causing some of your motors to fight each other and put a large load on the battery. Autonomous mode IS 15 seconds long, after all.

No, it was 15 seconds of teleoperated period (sorry for being unclear) and we'd literally see the OI Voltage Indictor go from 7 on up to 9, then trickle up to 12.

It was wierd and unexplicable by everyone except our team lead, who said it was because we placed the batteries on concrete. We stopped putting the batteries on the ground, and the wierdness stopped happening. Who knows.
__________________

Drive Coach, 1885 (2007-present)
CAD Library Updated 5/1/16 - 2016 Curie/Carver Industrial Design Winner
GitHub