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Unread 19-02-2008, 07:48
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: 10,772
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Re: backup battery charger from ifirobotics

If you are reading 8.9 volts without the backup battery connected, that is normal. You are reading open circuit voltage from the charger, i.e. no load. The backup battery needs to be connected whenever the charger is powered and connected to the RC.
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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.