I own a 2005 Nissan Altima which has been having alternator/battery problems for past 1 year. My car has 112,000 miles on it. My car battery was past warranty so I had the battery replaced about a year back. The battery went bad in about 6 months (or car would require jump starts all the time). I went back to the shop and they replaced my battery as it was within warranty. However, same thing happened again in about 4 months time. This time they said they wont replace the battery as alternator might be bad and would do an electric test to confirm. They did alternator test and confirmed that nothing is wrong with alternator and I should take the car to a nissan dealership; they told me Nissans are known for their electrical problems.
Instead of going to dealership (as that seemed a lot expensive) I took the car to another mechanic. He said he thinks alternator could be bad even if electric test does not say so as he heard a cranking noise once from the alternator.
Should I agree to his advise and get my alternator replaced? Is this a known problem in any of other Altimas or Nissans?
Some extra information about my usage; I used to drive this car a lot - but these days for past 1 year or so - I drive it only about 2-3 miles a day.