Car will not hold charge

Recently my car was dead so I replaced the battery.  It worked fine for 3 days.  Then it was dead again.  This time I replaced the alternator.  It worked fine for 3 more days.   Now it is dead again.  What possible reasons could be that my car will not hold a charge besides the battery or alternator?  The car is a 99 Buick Park Avenue V6 Supercharged.  Thanks!

1 thought on “Car will not hold charge”

  1. 1) something is draining the battery…. Glove box or console not completely closed and light is draining battery.

    Newly installed electrical device, draingin battery…. possibly the new alternator is not charging… did you check it?

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