Battery dying plus whining noise from motor?

69steel, Aug 24, 9:24pm
What could cause this! Alternator! We called the aa and they said to get the battery charged because its a calcium one. We did this but it still seems to be losing power. It seems like it is struggling to turn over. What do you reckon! Nissan cefiro 1998

lugee, Aug 24, 9:25pm
Loose belt

69steel, Aug 24, 9:30pm
would this cause both problems!

69steel, Aug 24, 9:30pm
Oh and the alternator is 160,000ks old

franc123, Aug 24, 9:42pm
Probably alternator, if the diode packs inside them fail they will whine, alternators have a shortish life on those 90's era Nissans, they don't necessarily bring the battery light on when they pack it in either. I'd also ditch the calcium battery too, they aren't really suitable for older cars as they can't provide the charging voltage needed to work properly.

69steel, Aug 24, 10:04pm
ok thanks heaps. I was wondering about the battery so might have to change it