My protege will not keep my battery charged I think I have a draw somewhere and I can't figure out how to find the. Draw annd. Why my alternator is not charging my battery I have replaced both of. Them and it still isn't.chsrging please help is. There a way to diagnose where the problem lies and what's not working correctly

 

What voltage do you have at the battery with the engine running?

Have you used a multimeter to measure current draw?

 

It was 12.86 at the batter while running

 

It should be 13.4 or higher when the engine is running. Your alternator isn't charging. I would pull it and have it bench tested. AutoZone and other parts stores will often do it for free. If you have a rebuilt unit, it's possible you got a bad one. I got three bad ones in a row from the same batch. A 4th one from a differenr rebuild batch worked fine. If you have a warranty, it won't cost you anything but time.

If the alternator tests good, you'll have to look for a bad wire or other reason. I tracked a problem down once where the negative cable looked fine where I could see. At the frame, under the engine, it was corroded nearly all the way through.