My car has been slow to start for a few days and this morning it just clicked and wouldn't turn over. I jumped it and it started fine, drove around for a bit, and now it's starting normally again. So is the battery on its way out or is there something else draining it? I don't want to replace a battery that's still good if the real issue is the alternator or a parasitic draw. I saw 800 Sayara car battery replacement mentioned somewhere and they seem to do testing as well as replacement. Has anyone had a similar situation where it turned out to be something other than the battery? How did you figure it out?