The first digit from the left is a letter. It stands for the month of the year. A = January; B = February; C = March, etc. The second digit from the left is the year 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.
Usually, a battery is sold during the first three months after it is received from manufacturing plant. If they are shelved longer, it is Interstate Batteries' policy to recharge our batteries that are on a dealer's shelf or in our warehouse every three months in order to keep them fresh.
Next numbers represent the battery length: 23 = 23cm long, 51 = 51cm long etc. This is the most important number as it tells the physical size of the battery. Last letter represents the battery polarity: R is for negative terminal on the right, L is for negative terminal on the. The car battery is usually the last thing on anyone's mind until the day when their car refuses to start. Modern maintenance-free car batteries can deliver years of dependable service. Whether it is a lead-acid wet cell, lead-acid gel cell, absorbed glass mat (AGM), or even lithium-ion NAPA has a battery for almost every application.
If the battery has been recharged by an InterstateBatteries wholesale Distributor, then there will be another date code on the cover of the battery. It will either be a two-digit code that is branded into the cover or on a small, round label on the cover. In each case, the code will be read in the same way as listed above.
Reading the date code on an Interstate battery with a part number beginning with “U”
The date code on Interstatebatteries, which start with the letter 'U' such as the U2200, contains three digits. The code is engraved into the positive terminal. The code will read the same as listed above.
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Aaa Car Battery Serial Number
Date Code On Car Battery
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