Q: Car battery dies and its new been recharged & definitely no the alternator on 2002 Dodge Stratus

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My battery was bought 9/12 and well it failed since then, the battery would die, I recharged it and through time thought it could be the alternator but according to the Auto Zone machines its not the battery or the alternator... What could it be???
(2) Answers
if it is charging ok then charge and load test battery if it drops below 9.6v then the battery is no good
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