Well i think it related to Amperage ... You can have 9-10 volt with good amperage but you can have 12 12 with some low amp. My battery was almost discharged and i was reading 11 volt and the starter was having difficulty to turn over... but my engine always started very fast. Since i installed the new alternator it start like a dream like before.
Modified by F3600 at 7:38 PM 10/26/2004
