fcooper wrote:
Is 14.3 to 14.4 too high for charging voltage? Your thoughts appreciated.
No.
When measured across the battery posts - 14.2 to 14.5 is desired.
Where is your voltage measured? Most of the time voltage reported is at the output of the charger/ alternator. So your batteries will actually be getting significantly less than 14 volts if that is the case.
12V has a significantly higher voltage drop over a cable run than 120V.
A chart from a battery manufacturer -
http://www.trojanbattery.com/batterymaintenance/charging.aspx
