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Well Said Jason. I scratch my head when people are on this forum and they own a Maserati and would risk all kinds of issue over a couple hundred-dollar battery.
Some people here got their cars at a reasonable car price and not a New Maserati car price... so it's good to be mindful that not everyone is "ballin" with their money. ;)
 

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Wow... i was just trying to find out if the battery was new or not... im not a cheap ass trying to skimp on my new-to-me ride. I tried to decipher the date code via the internet, and it's either not the actual date code or something else. The car was very well taken care of and has brand new Pirellis, new wipers so maybe it had a new battery too?

I will go buy another battery... no problem! I just didn't want to spend unnecessary money if it was brand new.
Yeah, that escalated quickly! 馃槤 To each his own, indeed. It sounded to me like you didn't want to just throw unnecessary money at it so I think we were on the same page in that regard. Regarding the heat stamp on your battery, it didn't look like any manufacturer date that I'm familiar with. Depending on the manufacturer of the battery, the date can be hot stamped in a different format. Very commonly used is a letter followed by a number.
A=Jan, B=Feb, C=Mar, D=Apr, and so on. (The letter "I" is skipped because it is confused with the number 1). The number will correspond to a 10 year window. 1=2001, 2=2002, 3=2003, 4=2004 and so on up to 2010. But of course your battery would not be in this decade as it would most likely be too old to still be in your car. So 1=2011, 2=2012, 3=2013, 4=2014 and so on, up to 2020 is possible for your battery. Your battery would have to look fairly new to be manufactured in this decade. 1=2021, 2=2022...
You can also contact the manufacturer and ask which date code they use on their batteries. 馃憤馃従
 

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The production dates are on the top of the battery and the appropriate dots are poked when when the the liquid is added...at least that is supposed to be the case. My battery in a 2018 AGM. I will test it next spring and if not perfect, change it, but my almost always tendered batteries last a long time! I have not a had a battery fail in less than 5 yrs....

I suspect that is a 2012 battery 9/05/12
If the manufacturer uses that as their heat stamp format, it's possible, though 10 years would be incredible but not impossible. My BMW M6 had a battery that lasted 11 years. 馃槷
 

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The round sticker that is placed on the battery can sometimes be the manufactured date but not always. Manufacturer's will always heat stamp the manufactured date into the battery, somewhere. If the heat stamp and the sticker dates are different, then the sticker is when the battery was last charged/warranty begin date or the date the battery was shipped.
In the picture example, the sticker and the manufacture date happen to be the same.
H=August, 4=2014. The other letters can tell you which plant manufactured the battery as well. Again, contact the manufacturer or go onto their website to see how they decode their particular date stamp.
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The production dates are on the top of the battery and the appropriate dots are poked when when the the liquid is added...at least that is supposed to be the case. My battery in a 2018 AGM. I will test it next spring and if not perfect, change it, but my almost always tendered batteries last a long time! I have not a had a battery fail in less than 5 yrs....

I suspect that is a 2012 battery 9/05/12
Could be May 9th 2012, if it's an AGM battery.
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