How Old Or New Are Your Deep-Cycle Batteries?
Used and refurbished battery-powered equipment are abundant and are often found at great prices. Although the vehicle may be in good working order, it’s important to determine how old the deep-cycle batteries are. In most cases, battery manufacturers stamp or etch a date code on the battery indicating the month, year, and location of manufacture.
U.S. Battery uses a stamped code on the terminals of its flooded lead-acid batteries. The top left letter stamped on the terminal correlates to the month it was manufactured (A-L refers to January to December). In this example, the letter “K” is the 11th month indicating the battery was manufactured in November. The number indicates the year 2014, and the bottom letter specifies the U.S. Battery plant where it was produced.
U.S. Battery Mfg. Co. Plant Codes
- The letter “X” is for Corona, California plant.
- The letter “Y” is for Augusta, Georgia plant.
- The letter “Z” is the Evans, Georgia plant.
U.S. Battery Mfg. Co. AGM Date Code
On U.S. Battery AGM Batteries, the date, month, and year on the battery case are etched into the top of the battery and are clearly visible. The date is in the format of DDMMYY or YYMMDD. In this example, September 15, 2014.
Please advise my batteries code is (I 0 x) what year manufactured. How old my batteries…..
Hi,
Your batteries were manufactured September (I), 2020 (0), in Corona, CA (X).
Best,
-Mike Wallace, Director of Marketing
Mike Wallace, What a sick joke to determine the age of your batteries. Awful for the consumer. This is impossible to read easily, all done intentionally to confuse the consumer. Get a simple sticker. Consumers should demand better here.
Hi Alan,
Thank you for your feedback. We appreciate receiving input on ways we can improve our products. This form of coding has been a deep-cycle battery industry standard for many years and is not intended to confuse customers. We do not usually like to use stickers for important information like the date code, as they may become damaged, faded, or peel off over time. I have passed on your concerns as well as those of other customers to our production team. And we will continue looking for ways to clarify how this information is communicated to our customers. In the meantime, if you or any other customer has a question about their battery’s date code, our team is here to help.
Best,
-Mike Wallace, Director of Marketing
Alan,
Sticker is worse in the golf cart world. People will peel them off or replace them and someone buying a cart on the open market gets lied to. Not really that difficult at all. Actually pretty simple and several of the battery manufacturers stamp terminals this way.
? L16 mark C1X how old
Hi Danny,
C1X would indicate March 2021, as long as they are red batteries. If the case is blue, then they are from March 2011.
Best,
-Mike Wallace, Director of Marketing
Please advise my batteries code is E1Y. What year were they manufactured?
Hi Jayson,
Your batteries were manufactured in May 2011 at our Augusta, GA plant.
Best,
-Mike Wallace, Director of Marketing
What would the date code be on a flooded deep cycle US battery manufactured in 2021?
Hi Rex,
The date code will have a “1” stamped on the terminal, and the labels will look like the ones featured on our website. If there is a “1” and the labels are different from our website, it is most likely 2011.
Best,
-Mike Wallace, Director of Marketing
My batteries say CO21N
Can you tell me the age please?
Thanks you
Hi Lee,
C021N is an internal tracking code and is not the date code. The date code is composed of two letters, and a number in a triangle configuration stamped directly into the metal of the positive terminal. Letters X, Y, Z indicate the factory it was built at.
U.S. Battery Mfg. Co. Plant Codes
The letter “X” is for Corona, California plant.
The letter “Y” is for Augusta, Georgia plant.
The letter “Z” is the Evans, Georgia plant.
Letters A-L indicate the month; A= January, B = February, etc. The Number signifies the last digit of the year; 9 = 2019, 0 = 2020, 1 = 2021, 2 = 2022.
Best,
-Mike Wallace, Director of Marketing
What would the date be for the following: A262D2
It is on a US250XC and does not seem to follow your code breakdown.
Thanks,
Hi Aaron,
A262D2 is an internal tracking code and is not the date code. The date code is composed of two letters, and a number in a triangle configuration stamped directly into the metal of the positive terminal. Letters X, Y, Z indicate the factory it was built at.
U.S. Battery Mfg. Co. Plant Codes
The letter “X” is for Corona, California plant.
The letter “Y” is for Augusta, Georgia plant.
The letter “Z” is the Evans, Georgia plant.
Letters A-L indicate the month; A= January, B = February, etc. The Number signifies the last digit of the year; 9 = 2019, 0 = 2020, 1 = 2021, 2 = 2022.
Best,
-Mike Wallace, Director of Marketing
My batteries have D2Y.
We just bought cart and were told they were new batteries. Is that 4/2022? They were purchased in March. Please advise.
Thanks
Hi William,
You are correct, D2Y is 4/2022. The date codes are about a month and a half ahead of the time they actually leave the facility. So, your batteries were actually built in late February or March.
Best,
-Mike Wallace, Director of Marketing
Let me try this again,
On the battery post is L1Y
In a white circle on top of battery is M21
Etched on Battery is A28504
1120-E
Is this battery still under warranty, the reason I ask is because my Battery post on this Battery the post melted and my cable can no longer be attached to battery.
Can you explain all the codes/numbers, what year is the battery?
Hi James,
Thank you for choosing U.S. Battery products, and I am sorry that you are experiencing an issue with one of them.
The date code is the L1Y stamp on the battery terminal. That code indicates that the battery was manufactured either in 12/2021 or 12/2011 in Augusta, GA. You can distinguish the year based on the battery label. If the label looks like the batteries displayed on our website currently, then it is from 2021. If the labels look different, your battery is most likely from 2011. The other codes are manufacturing codes, which we use for internal tracking during the production process.
The best way to determine warranty coverage would be to contact the dealer where you purchased the battery.
Best,
-Mike Wallace, Director of Marketing
31c202 is mfg date ?
Hi Ho,
31c202 is not the date code of your battery. The date code is composed of two letters, and a number in a triangle configuration stamped directly into the metal of the positive terminal. Letters X, Y, Z indicate the factory it was built at.
U.S. Battery Mfg. Co. Plant Codes
The letter “X” is for Corona, California plant.
The letter “Y” is for Augusta, Georgia plant.
The letter “Z” is the Evans, Georgia plant.
Letters A-L indicate the month; A= January, B = February, etc. The Number signifies the last digit of the year; 9 = 2019, 0 = 2020, 1 = 2021, 2 = 2022.
Best,
-Mike Wallace, Director of Marketing
My 8VGC-XC batteries have date code H0Y.
Were the batteries made in August 2010 or August 2020?
Hi Bill,
If the battery case is red it is from August 2020, however, if the battery case is white it is from August 2010.
Best,
-Mike Wallace, Director of Marketing
Mike,
Well, 2010 it is. Hard to believe the batteries were functioning at all after 11-1/2 years.
Thanks!
Bill
Hello. I have a mix of batteries in a used cart. They are all US8VGC. There is a date code that I’m unsure about on 2 of them.
D7Y
Can you confirm the date please?
Hi Wes,
D7Y indicates that those batteries were manufactured in (D)April, (7)2017, at our (Y)Augusta, GA plant.
Best,
-Mike Wallace, Director of Marketing
Thank you for your prompt reply! I am surprised they are from 2017!
Hello
Just bought a used cart was told batteries are new they are red us2200 6 volt. On the terminal its stamped with a D and 2 is that December of 2022 or 2012?
Hi Mike,
D2 indicates your batteries were manufactured in April of 2022. The US2200 batteries we made in 2012 were white with red tops.
Best,
-Mike Wallace, Director of Marketing
hi Mike, my us 1800 6 volt batteries are stamped c 2 z on the positive posts is that 2012 or 2022
Hi Greg,
They are probably from March 2022. The easiest way to tell is through the labels. If your labels look like the ones currently on our website, it’s 2022. If they look different (blue or silver) then your batteries were manufactured in 2012.
Best,
-Mike Wallace, Director of Marketing
Hi. I just purchased a used golf cart with 6, Black, US1800 deep cycle batteries. The Triangle code is F 1 X and etched in the battery is C 102D 4. Can you tell me the year of manufacture on these please?
Hi Sherry,
Your batteries were produced in June of 2021.
Best,
-Mike Wallace, Director of Marketing
My batteries only have a “4” stamped into the top of the negative post. No other numbers or letters… Does that mean 2014?
Hi Buddy,
Take a look at the positive post. The “4” on the negative post indicates that it is a US1800. Look for two letters and a number on the positive post; this is the date code.
Best,
-Mike Wallace, Director of Marketing
D-2-Z dates on my Us2000 batteries 2005 Ezgo txt took a ride to see how long my batteries would actually last did exactly 12.8 miles before i almost didn’t make it home is that normal i was told a fully charged 36v cart should do close to 30 miles fully charged what do you think and should i consider upgrading my batteries
Hi Brandon,
Our Engineers recommend checking the charger before looking into upgrading batteries. The US2000 should provide more than 12.8 miles on a single charge, but that is dependent on other factors such as weight, terrain, and speed. If the charger is the original that came with the cart, then that may be the root cause.
https://www.usbattery.com/deep-cycle-battery-user-manual/
Section 6.4 – Charger Diagnosis
– Step by step instructions to determine if your charger is working appropriately.
Sections 8.1 -8.4
– Step by step instructions for determining if your batteries are healthy or failing.
Best,
-Mike Wallace, Director of Marketing
Thanks Mike I’ll check into it
i would like to know how old these batters .date code is J1 .is this 2011 or 2021
Hi Robert,
The easiest way to tell if they are from 2021 or 2011 is the color of the case/cover. If they look like the batteries currently on our website red/red they are from 2021. If they are different color, then depending on the battery model, they are from 2011.
Best,
-Mike Wallace
What would the code look like for 2022 golf cart batteries?
Hi Kc,
For 2022 you’ll see a letter A-L, the number 2, followed by an X, Y, or Z.
Best,
-Mike Wallace, Director of Marketing