What causes a battery to die so quickly?
Yesterday I was comming home from a friends house (about a 2 hour drive), and my car ran perfectly, I did look at the voltmeter a couple times on the way home and it was running around 14 volts, maybe 14.5 ish, so i know my alt was working fine. I get home and let my car sit for about an hour, (i didn't leave anything on) and my battery is dead. Not enough juice to turn the starter over, barely engough to bring up the headlights, not enough to play the CD player.
What caused the battery to die like this. My dad told me that sometimes the lead plates inside a battery can warp and touch each other and cause it to die. Is this true.
I don't know how old the battery is, It was in the car when I bought it a year ago.