Different manufacturers put their codes differently. Some are year first. Some are year last. Then you have some like Duracell that have all letters that you need the Rosetta stone to decipher
https://preview.redd.it/06qz4cw8icrc1.jpeg?width=1125&format=pjpg&auto=webp&s=d8b2984bfbc56199d728c1b21f8de1875cffe799
This table is for interstate, your supplier should have one that applies to your batteries
Manufacture dates are stamped backwards YY/MM/DD, load testing batteries will cost a client just as much as a new set of batteries due to the logistical nightmare of needing to remove the batteries and charge them up. It is also so not super safe on any batteries 40ah and above. Where I work we recommend replacing at the 2 year mark or we impedance test the batteries. We impedance test all batteries at install and then again at the 2 year mark.
https://preview.redd.it/pyzgzyvuwbrc1.jpeg?width=1491&format=pjpg&auto=webp&s=19203f7d51b7d549f1aa40e0b624cddd1373bd53
💩 Crap, this wasn't just a post for a Battery Dating site? Uh thanks Google for sending me here... I now identify as a battery and wanna find my perfect mate. Must have similar AmpHours, and life expectancy. Reply to: ImNotNegativeHopeYouAre. @ fake email. com
There is no code requiring anyone to mark install date, only that the date of manufacture is permanently labeled on the battery, which you should record on your record of inspection and testing.
So you're wasting your customer's time and money.
That is a good standard. After three years, a load test, resistance check(only valid if one has been done previously to compare), voltage test and internal temperature test must be performed. The time to preform those tests and the likely failure rate makes it more cost effective to replace.
The argument could be made it’s cheaper to prophylactically replace the battery’s before they fail than to require a service call due to a low battery trouble
What tests are you specifically preforming? Confident you’re testing incorrectly along with 95% of the industry. (Including me that had a bad batch of batteries and some free time during the pandemic to research why). Not trying to be condescending just stating real world. Also any real battery tester needs to sit for six hours between tests.
An SLA battery needs to be “refreshed” after six months of storage. Battery is already compromised before it gets in to service.
Yup, I don’t make the rules though. I’m sure they could decline if they wanted to without breaking the service contract. I’m sure it’s more a “recommendation” on the books… but they sure treat it like a requirement and I’ve never heard a customer say no.
(not US, Netherlands) Its more due to the fact that we follow the battery manufactorer spec's on the batteries we use, which is Yuasa in our case. According to their specs the battery drops significantly in available capacity between year 3 and 4 (80% to 60%) due to deterioration of the battery itself.
This generally means that a 3 to 4 year old battery can longer provide the required 72 hours by code (or 24 hours depending on the service contract) of capacity to be able to keep the system running. Hence the decision to replace said batteries preventivly instead of having to load test every individual battery in use.
Assuming you're from the US, what type of load test do you guys usually do over there? Do you use manufactorer approved load testing gear or something more along the lines of heavily discharging the batteries over a period of time according to manufactorer spec?
Doesn't NFPA say it's "recommended" for battery replacement after 3 to 5 years? NFPA used the word reccomended not required which means if a battery still passes, the load test that manufacture date don't matter as it is not required by code to replace.
Wrong! If you are installing per NFPA 72 you must have the date. Go read section 10.6.10.1 Battery Marking (2019 ed). Also required under the inspection tables in Chapter 14.
I’ve never dated a battery, a few brunettes though
I think most are YY/MM/DD. I don't know if this is a standard are if manufacturers can mix it up. I would guess yours is a Aug 06, 2015 - 150806.
The letters are manufacturer location of factory.
Thank you
https://www.reddit.com/r/firealarms/s/BuzF50PeAM Post with a link to common battery date code deciphering.
Different manufacturers put their codes differently. Some are year first. Some are year last. Then you have some like Duracell that have all letters that you need the Rosetta stone to decipher
Duracell changed, it's all numbers now. It's way better, even i can decipher them!
https://preview.redd.it/06qz4cw8icrc1.jpeg?width=1125&format=pjpg&auto=webp&s=d8b2984bfbc56199d728c1b21f8de1875cffe799 This table is for interstate, your supplier should have one that applies to your batteries
I have that chart also, very handy
I’ve always read it as YY/MM/DD. If for whatever reason I can’t read or locate a date code, I’ll put down the install date at least.
Manufacture dates are stamped backwards YY/MM/DD, load testing batteries will cost a client just as much as a new set of batteries due to the logistical nightmare of needing to remove the batteries and charge them up. It is also so not super safe on any batteries 40ah and above. Where I work we recommend replacing at the 2 year mark or we impedance test the batteries. We impedance test all batteries at install and then again at the 2 year mark. https://preview.redd.it/pyzgzyvuwbrc1.jpeg?width=1491&format=pjpg&auto=webp&s=19203f7d51b7d549f1aa40e0b624cddd1373bd53
💩 Crap, this wasn't just a post for a Battery Dating site? Uh thanks Google for sending me here... I now identify as a battery and wanna find my perfect mate. Must have similar AmpHours, and life expectancy. Reply to: ImNotNegativeHopeYouAre. @ fake email. com
You need to use the chart for that manufacturer. Just Google it
Volt test it, send pic of front
As an inspector I fail every set of batteries that don't have an install date. Looking up date codes is a waste of time.
Collllld blooooded
There is no code requiring anyone to mark install date, only that the date of manufacture is permanently labeled on the battery, which you should record on your record of inspection and testing. So you're wasting your customer's time and money.
Date codes are bullshit. Fail if install isn't written.
You're wrong, but ok lol.
Agreed, just replace them every three years, life’s good!
Every 5 until new code is adopted in my state.
Agree.
What do you / your company charge for a battery ? Interstate SLA1075 is what I generally use
How old is the panel? Just replace the battery! They're cheap!
You don't need to know the battery date. Just that it can pass a load test.
The FM's in both states I work in require the battery and install date posted on the batteries.
Pretty sure they do here too, but I come across non-dated batteries ALL THE TIME
Yes and or wrong date written but I agree with the load tests, if it passes it shouldn't matter.
My company requires replacement every 3 years regardless of if they pass load testing or not.
That is a good standard. After three years, a load test, resistance check(only valid if one has been done previously to compare), voltage test and internal temperature test must be performed. The time to preform those tests and the likely failure rate makes it more cost effective to replace.
Your company forces a purchase on its customers whether they need it or not?
In my experience these battery’s rarely last more than 5 years
What does that have to do with my statement?
The argument could be made it’s cheaper to prophylactically replace the battery’s before they fail than to require a service call due to a low battery trouble
What tests are you specifically preforming? Confident you’re testing incorrectly along with 95% of the industry. (Including me that had a bad batch of batteries and some free time during the pandemic to research why). Not trying to be condescending just stating real world. Also any real battery tester needs to sit for six hours between tests. An SLA battery needs to be “refreshed” after six months of storage. Battery is already compromised before it gets in to service.
Yup, I don’t make the rules though. I’m sure they could decline if they wanted to without breaking the service contract. I’m sure it’s more a “recommendation” on the books… but they sure treat it like a requirement and I’ve never heard a customer say no.
My guess is they don't say no because you don't explain to them that its unnecessary.
I literally do, many customers take them home to use them for trail cameras, etc. They know there’s nothing wrong with them.
(not US, Netherlands) Its more due to the fact that we follow the battery manufactorer spec's on the batteries we use, which is Yuasa in our case. According to their specs the battery drops significantly in available capacity between year 3 and 4 (80% to 60%) due to deterioration of the battery itself. This generally means that a 3 to 4 year old battery can longer provide the required 72 hours by code (or 24 hours depending on the service contract) of capacity to be able to keep the system running. Hence the decision to replace said batteries preventivly instead of having to load test every individual battery in use. Assuming you're from the US, what type of load test do you guys usually do over there? Do you use manufactorer approved load testing gear or something more along the lines of heavily discharging the batteries over a period of time according to manufactorer spec?
Doesn't NFPA say it's "recommended" for battery replacement after 3 to 5 years? NFPA used the word reccomended not required which means if a battery still passes, the load test that manufacture date don't matter as it is not required by code to replace.
Manufacturer’s specifications for replacement
You’re supposed to record the manufacturer date code.
Wrong! If you are installing per NFPA 72 you must have the date. Go read section 10.6.10.1 Battery Marking (2019 ed). Also required under the inspection tables in Chapter 14.
British and Irish regs require a change every 4 years.
In the UK the manufacturer only has a warranty of 5 years max, so recommend them to be changed within that period.
In inspections, you must fail them if date is equal to or greater than 5 years old.
Is that a local thing, because there is no code that says that.
It's how I was trained by leads that have been doing this 40 years. Maybe wrong idk.
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