Originally Posted by travisjb

mine connects through the passenger "window" ... I have it hanging off a ceiling plug in my garage and I attached the quick release directly to the batter terminals so it's a cinch to take on / off

just realized spohn's question wasn't answered... there is a small voltage draw from the ecu that will drain the battery if it sits without a tender for long enough... guessing for a new battery it is maybe 3-4 weeks... but I think that really depends on how much life is left in the battery - after 12 mos in the car, the duration between starts will need to be shorter... or as stated above, get a tender