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Date: Fri, 04 Aug 2006 17:34:21 -0400
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From: Tom Thibault <tthibaultsprint@earthlink.net>
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Subject: [LML] Re: LR3C Regulator
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Chris,

In general you are right.  I looked on the Concorde web site for the 
document you showed and found the new version of it.  It is the 
Operator's Manual, DWG 5-0164. This document has the same chart and 
essentially the same words as the M4 version.

The thing for us that matters is the operating temperature of the 
battery in flight. Those of us that have cabin mounted batteries are 
probably operating in the 50-90 degrees F range. For that case, the 
voltage should be 14.0 to 14.2 per Concorde direction. In my case, the 
battery is on the engine side of the firewall at a much higher 
(currently unknown) temp. In that case, the voltage should be set at 
less than 13.75. I will be lowering mine to 13.6 most pronto until I get 
some of those temperature tapes so that I can find out the real temperature.

Finally, the above is only about the battery operating temperature, not 
the LR3C temperature or mounting location. I verified all the above with 
an extremely helpful and friendly Concorde battery engineer on the phone 
just now.

Tom Thibault