Battery does not stay charged!!!

Excessive corrosion or a loose battery cable will keep your car from starting. If that doesn't fix your problem, don't be too sure that it isn't a bad battery. Did this problem exist before you had this battery? If it did then it probably isn't the battery. I had this same problem a few years ago with a brand new battery. Thinking that it couldn't possibly be the battery I replaced the battery cables, checked the alternator, and checked everywhere for a short. Turned out the battery I bought was no good.