dlm34077
Joined: 10 Feb 2007 Posts: 115 Location: AZ
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Posted: Thu Nov 21, 2013 5:36 am Post subject: 680 life |
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I had two 680s in parallel in the aft battery compartment; They had been in there since first flight in April 2008. The cranking was starting to slow so I changed them September 2013 after 750TT. One had a manufacture date of 2005 and the other 2007. The batteries were still starting the aircraft but I felt that I wanted the reliability of two new batteries. Just for reference , I have a third insulated 680 on the firewall, installed in about 2010 for weight and balance purposes. It is trickle charged from the primary bus and powers the essential bus if the charging system or the field breaker fails. I have a picture somewhere but basically I placed both 680s in a modified tray and used two master contactors 002 wire to send power to the starter relay.
David McNeill
N46007
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