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Unread 09-05-2013, 07:29
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
Posts: 10,798
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Re: Battery Chargers

Devin,
There are so many variables in battery life. The greatest reduction in our battery use comes not from over charging but the high demands of discharge during a match. While our batteries are capable of extreme currents (600+ fully charged) they are really designed for discharge life of 1/10 C or about 2 amps. I have not read any articles that relate the stepped charge you are proposing to extended battery life. It won't hurt, I just don't think it will help that much value. You might consider reverse engineering the KOP charger to see what they do for the different charge rates and come up with a switch to perform that function. The reason the KOP charger has the different positions is to allow charging batteries of lower capacity than the KOP batteries
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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.

Last edited by Al Skierkiewicz : 09-05-2013 at 15:29.