http://www.batteries-faq.com/activekb/questions.php?questionid=53
The first digit from the left side is a letter which stands for the month of the year. A = January; B = February; C = March, etc. The second digit from the left is the year that the battery was shipped from the factory. 4 = 2004, 5 = 2005, 6 = 2006, 7 = 2007, 8 = 2008, 9 = 2009, 0 = 2010, 1 = 2011, 2 = 2012, etc.
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pirms 11 gadiem
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http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=11
Determining the Age of a Tire