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