OK, I do know a thing or two about cars, but this has me stumped. Background info: Fairly new battery (less than 2 yrs old) A month ago was the last time i did anything to the car's electrical system (barely). I put in new headlamps for the winter and I replaced a fuse--the fan high-speed fuse for the radiator. After i did those two things, I drove 16 hours for Thanksgiving, several trips over an hour, etc. LOTS of highway driving, and no problems at all. Last night, I drove 45 minutes each way on the highway. No problems. This morning, car won't start. The starter clicks and rotates a bit, but the battery is just too dead to make it work. I jumpstarted from another car, drove 15 minutes to work (I was late and couldn't drive it longer). This afternoon, of course, the car won't start again. Maybe I did not let it run long enough. Another jumpstart, and this time I drive and let it idle for about 30 minutes or so. I disconnected the positive terminal and tried to see if there is a power leak--I put a voltmeter in between the electical terminal and the wire, and checked for amps. I got abotu 50 milliamps...this should be normal. So I figured I should be good, but then when I tried to start, nothing. So literally 10 minutes after shutting off, it won't start again. I have one of those cheap alternator testers that hooks into cig lighter. It says my alternator is good, 13 V or so. So i am stumped. I am off to buy a damn battery charger at the auto store, but it ain't gonna fix it. If I had a voltage leak or short circuit somewhere, why didn't it screw me over earlier? I have been driving fine for several weeks. Any thoughts would be great; I am really frustrated...