Replaced alternator and battery. Battery light continues to stay on-- battery will not hold charge. Fuse was checked and is ok.

I am having the same issue I have replaced the alternator and then the battery terminals and now the battery and it still only holds a charge for about 5 hrs and the car will run but the battery starts to die and the engine starts to sputter after bout 25 minutes of constantly driving tho any ideas

Remove battery clamp and using a sandpaper, clean the battery terminals and clamp. Put them back and tighten the clamp properly, apply petroleum jelly on both terminals.

If still there is problem, do this:

Take out the battery and charge it outside using battery charger and check if its holding charge, if not then battery is faulty.Also using a multimeter check the voltage output of alternator.

Go to the battery positive terminal is ther a 30 or 40 amp fuse you ll have to visually inspect to see if its open, you also need to look in power junction box and look at the big green fuses some orange and some red the big ones not the small one, check to see if any are open more than likely the fuse are open