I just noticed the voltage display on my gps was ranging from 14.1 to 11.6 volts while running. I don't know if it ever acted differently before...but it would seem to me that it should be more of a steady reading. Also. my brand new strarting battery seems to be "more dead" after a day of fishing than my last battery ever did. I woulg think that I'de get a code if something was up with the regulator or rectifier...any ideas? model# E150ILEUC THANKS!