Well after a week of plugging the charger into the same timer as the block heater (2-2.5 hours each morning) my battery is still working and showing a steady voltage. during my morning commute it does not drop below 11.8v and on my way home it stays above 12.4v.
So I decided that I was tired of plugging and unplugging two extension cords each day, so I wired the charger to the same port on the car as my block heater. I did not want to ruin the charger's 120v cable so I made a short extension cord and ran that from the port on the car to the charger's mounting point. if some day I want to give the battery a longer charge without running the block heater I can just undo the short extension and plug in to a wall outlet.
I also got a PS delete done
http://ecomodder.com/forum/showthrea...tml#post328487