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Old 12-30-2012, 11:22 AM
akthorp akthorp is offline
Officially Welcomed to the 'Fest
Location: North Carolina
 
Join Date: Jun 2012
Posts: 102
Mein Auto: 540i, 325i
How long should a battery last?

I had to jump my 540 today. I can't remember when I changed the battery but I think it was at least 4, maybe 5, years ago. I assume it's just an old battery but how do I know it's not the alternator?
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