Starter & alternator problems.

[willie_hwl]

I have problem to turn on the engine, even with new batterys(changed twice), my alternator is in good condition but it damage the battery instead of charging electric to it. Does the starter has to do with it? I would like to know if both the starter and alternator is connected in charging the battery? I bought the new batteries but not even last for a month then damaged(wont charge)

What should i do? Any idea?

[immeraufdemhund]

well your starter doesn't haven't have anything to do with your charging. Only your alternator does. Your starter could drain the battery a bit, but then again if you have a cheap battery then you could just be running into it's not holding it's charge like it's supposed to. The only other thing that could cause that is if your wires or your fuses are busted for your charging stuff. Is your battery light on when you drive?