Ok, so I've been toying around with MAF's for the past few weeks and between switching them, I've unhooked the negative post on my battery for about 15 minutes to reset the computer. First meter swap, everything seemed ok for about a week. A couple days ago, swapped another meter and reset the computer again and seemed fine until today. I went out to change my pulley's and after I was done I was ready to start up and go. I get in and have a dead battery. I got a jump and after it was running, took it out for a drive and the volt gauge was really fighting to stay up so ofcourse the battery is now dead again after being parked all day. My question is, did unhooking the battery those couple of times cause this? The battery is only about two years old and showed no sign of drain until I unhooked it recently. I had this problem before and couldn't believe that disconnecting it for so little time can completely drain it. How is this? It was 70 degrees out today, aren't battery's suppose to go dead in the winter?