well, i've ran down the battery twice now by forgeting to turn off my ftp daytime running switch, but this time its only been just sitting out in front of the house for the past 2 days and just now when i went to try and start her up, its only at 8 and wont crank at all...wtf is wrong with it? i had my alt rebuilt by rotex, i get 14 at idle now, and with the car off i get 12, but as of now its almost dead and i dont know why, i didnt leave anything on....could it be the battery?

cranking amps are 550, at 32º is 685, and reserve is 110...

 

Most automotive batteries don't like to be deep cycled.
Have that battery checked - it may be warranty replacement time..

 

i myself think its the battery, im just gonna go ahead and buy a optima red top and hopefully this will solve any problems.

 

Mine lost a lot of voltage due to aftermarket pullies.

 

you can't kill a battery more then one or 2 times. the battery is toast.