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New cars generally run at up to 14.8v. They out grew the ancient 12v systems a while ago.
My Jeep has a battery temp sensor. I took it out after replacing the original 12 year old battery, I bench tested it drew up a table of resistance vs temp.
It seems like that would be a very simple way to stop the alt charging at high loads? Simply to ground (or switch in a resistor) the sensor in line with a switch on the throttle and or brake?
I'm not sure there's much point to actually doing it on a Wrangler, but it could be useful on more typical eco cars fitted with such a sensor.
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