Here is what happens.
In the morning: starts fine. 1st kick
When i go for a short drive or park it in the sun on a hot day: might start 1st kick, might click, might crank slowly (like the battery is flat).
then all of a sudden after a few attempt and it seems like the battery is flat it will all of a sudden start like nothing was wrong.
I had the alt reco'd a few months ago and i have no idea wtf is going on

What happend today was: .. the car wouldnt start in a parking lot. It cranked slowly like the battery was flat. then clicked... then i recruited a guy for a jump. while it was hooked up it still clicked and still cranked slowly... then people wanted to get passed.. so i unhooked the leeds and the guy moved out the way. then like magic it started.
any ideas ???