You shoudl have replied to your previous post instead of posting a new thread so that whoever atnded to you can get notified and respond. This would keep the history of the process in one thread.
If the battery is failing, charging it would only keep alive temporarily and if left overnight, it is going to fail again. Was any high rate discharge test perormed? Most parts outlets provides free testing services. Get the alternator charging rate tested as well.
One way of testing is to disconnect the battery negative terminal and leave it off. If you are able to start the next morning, the battery could still be good and you have a parasitic drain which could be anything from a faulty component or relay that is keeping something on all the time, even when engine is not running.
You would need an ammeter to test for parasitic drain.
For those component that are not working, check the fuses. Use a test lamp or DVOM to ensure that you have battery voltage at both ends of fuses.
Friday, April 1st, 2011 AT 8:44 PM