B8 A4 Battery Replacement - Coding

[Redd]

For $50 less than what the dealer wanted for a replacement H6 battery, I got an H8 battery. 95A instead of 75A and that translates into about 1/3 longer life as well. For the $200 in labor for installation and programming, I bought the VCDS software and now own it. So...there's "OINK!" and there's "OINK OINK!" and I just refuse to pay that.

If I didn't have extensive experience with 12v systems and the issues they gloss over, I wouldn't have had any idea how "wrong" the Audi mystique is. AGM batteries, according to everyone who makes them, simply must be treated differently if you want to see their full capability. And that can routinely mean 8 years instead of 4 years. The fact that my original battery dies at 14 months I can understand (extenuating circumstances) the fact that the replacement only lasted 3-1/4 years before the dealer decided 12.2 volts is too low to keep the car happy....No, I've spoken to too many engineers at too many companies to fall for that.

With car batteries, the general principle for the charging system is "Do not overcharge the battery". This from an engineer at a company you would recognize. He said their priority was at that time wet lead SLI batteries. And SLI batteries are designed to cycle between 90-100% state of charge (SOC) no further. If you leave it parked with loads (security system, tracker, etc.) for a month at a shot...it cycles below 90%. Sometimes to 60%. The battery gets insulted. And the alternator cuts back very quickly, because they are not rated for continuous duty, and they are designed to cut back quickly so that you can drive all day, ten hours on the highway, without overcharging the battery. That works, most of the time for most folks, who don't complain if they have to replace a battery every 4 years. Oh wait, they lease cars now, they never get that far.(G) Now that batteries are pushing two hundred dollars not seventyfive dollars...the difference between 4 and 8 years means a lot more.

Having seen, programmed, worked with, commercial charge control systems? I was amazed at all the information VCDS shows. Voltage at different points, current flow, estimated SOC and charge condition...it LOOKS like a high end charge control system would be reading all that. If they are just reading it but doing a dumb old two stage charge, and just using the other information to shut the alternator down early (supposedly they do this to release drag on the engine and gain a little mpg) then they are truly wasting an opportunity. AGM batteries, unlike wet lead, prefer to be 100% charged when at rest. Not 90%, not 95%, but 100%. And in exchange, they can go further between charges. They aren't magic though--a properly maintained wet lead battery can get the same 8 years, if charged and watered properly.

Now that the old battery is out of the car and on a proper dedicated charger? Funny thing, the voltage has come back up. The CCA capacity tests also run higher. The Audi? Eh, I think the phrase is "Lucy, you got some 'splaining to do!"

[JBAeroEngineer]

so am i gathering that going from wet lead acid to AGM requires something different other than current coding + 1 digit?

[Redd]

Depends on what they are doing, or if it is all a dog and pony show.

The VCDS screens indicate the car is reading internal battery resistance and charging rates and other data which probably are enough for the controller itself to tell what kind of battery it has, and what the battery needs. But in theory...if you don't have a proper BEM for the correct battery, the car will burst into flames [sic]. It could be that the BEM coding is nonsense, and actually does nothing except prevent non-Audi partners from servicing the cars.

At least in Vegas, they'll give me good drinks while they're taking my money. Cafe Audi...not so much.

I would try to put in the BEM for the closest battery match you can find, in case it really is doing anything.

Since the numbers in VCDS didn't seem to reflect any change when I changed the BEM (itself) I'm wondering if the only way to get real data from Audi will be to push for an FTC inquiry into "restraint of competition".

[captain_video]

I went out to start my car this morning and the battery was almost stone cold dead. The last couple of times I tried to start it the engine would hesitate for a few seconds and then start right up. When I got home last night I got an error message on the dash about the battery not being able to take a charge or something to that effect. My wife had to drop her car off this morning so my car was the only other vehicle we had between us so I ran out and picked up a battery for my car at Advance Auto Parts. Here's the battery they gave me:

https://shop.advanceautoparts.com/p/...000%7CL3*15597

It's a 48H6 type and there was no BEM sticker on it. It's slightly smaller than the original battery but it has a higher CCA value. I'm just curious how I would code it using my VCDS and what values to enter since I have no sticker to refer to. The car started right up after I installed it and seems to be running fine.

One thing I noted in the VCDS options is that you have to select an amp-hour rating for the battery. Car batteries are rated by cold-cranking amps, not amp-hours, so I'm wondering how anyone arrives at this value.

[Novarider]

The dealer doesn't even do this anymore. The new batteries from Audi don't even come with a BEM sticker on them. It cant be THAT important if the dealer doesn't even bother with it anymore. I'd still change 1 number in the system serial number just so the computer knows it has a new battery

[Redd]

"The dealer doesn't even do this anymore. The new batteries from Audi don't even come with a BEM sticker on them. It cant be THAT important if the dealer doesn't even bother with it anymore."
Jeez, and mine was still kind enough to offer to program it for a mere $200 last month.

Captain V-
As long as the new battery is the same H6 size group (we use different numbers in the US) as your original, all you would apparently have to do is put in the new serial number, i.e. increment the old one by one digit, and the car is pretty much going to be happy with "Oh, I got a new one." The slight differences in battery specs won't make a real difference. For instance, US CCA measurements are NOT measured the same was as EU battery measurements. Like gasoline octanes, the finished product may be the same but have different numbers because it is calculated differently.

The true cranking ability, or reserve ability, or simple capacity, of the battery depends on many things including the thickness of the plates, the purity and alloy of the metals, the grid structure, etc. But from the stonewalling we get from Audi, all you can say is find the BEM for an H6 battery of the same type (AGM, wet lead, stop/start) and use that until and unless anyone can find what's really going on.

More importantly...disconnect the negative terminal first. Don't zap yourself in there. And, on the negative side of the battery, should be a little 1/4" tube that plugs into an invisible hole near the top of the side, which is the vent tube.

[Andrew A4]

Huh? Impossible on a B8 unless you drive a camo test mule :)

Really? I'm still on my original battery in my 2010 B8 Audi A4 2.0 quattro prestige. Yep... that's 8 years. Just got a low battery warning while listening to the radio with the engine off the other day. Looks like I got my money's worth!

[JBAeroEngineer]

Really? I'm still on my original battery in my 2010 B8 Audi A4 2.0 quattro prestige. Yep... that's 8 years. Just got a low battery warning while listening to the radio with the engine off the other day. Looks like I got my money's worth!

Ditto, though I replaced over the winter out of fear

[Redd]

If your primary use of a car is a nice gentle "I start it twice per day, once to go to work and once to come home, 40 miles each way, and then sometimes I use it on the weekend" you battery can lead a long pampered life. But "the same" car used for a ten minute commute, plus another two five minute runs to pick up lunch, plus more short trips....and the same battery can be killed in four years. As Chairman Mao said "Black cat, white cat, all same, catch mice." But who really thinks a black cat is the same as a white cat?

No one in the battery business has been able to figure out anything more than averages, across large numbers of users with similar or varying usage. Eight years IS extraordinary, but not unheard of. It just means the owner is doing something right--possibly quite by accident.

[jfo]

As a point of reference, I do much as you described....a week filled with 5 minute drives with several stops/starts at the market, post office , wine store, etc, along with the occasional longer drive. I could go several weeks without doing a "longer drive". My original AGM battery was 7 years old and probably had another year. I only changed it 2 mths ago since I live in a small town with limited access to auto parts and felt it was a good preventive measure.
I should add that during the last year I would occasionally hook up my trickle charger, usually when the period between longer trips was getting excessive.

[Andrew A4]

So here are the two batteries that I'm looking at. One is wet lead like my current OEM Moll battery, and the other is AGM

1. Bosch Premium Performance Battery Group, $139

Size H9/L6/95R

950cca/1140ca - reserve min = 140 - 110 ah
3 year warranty.

2. Bosch S6 Platinum AGM $167

Bosch Advanced AGM (TM)
4 year free replacement warranty
Cold Cranking Amps:850...Cranking Amps:1020...Battery Type:AGM...Amp Hour:90...Reserve Capacity:160...Terminal Type:TOP...BCI Group Size:49...Voltage:12...Maintenance Free:Yes

[stefdds]

Good Morning all! I finally decided to replace my battery (2009 S5 , prod. date 08/08) It was the original battery and it seemed ok. I use a battery tender every evening - for overnight. I was doing some other work on the car and had the battery access able and the vcds was hooked up as well. So, like many of you I tried to do it the proper way: made sure I had the proper number of digits , spaces, numbers vs. letters, etc. It simply would not take the new code ; it would only repopulate the stored code into the 3rd. field on VCDS. I changed it up several times but no luck. I then read this thread and found out that I am not alone. The new battery is a Interstate with a bim code sticker on it.
I abandoned that number and used the Original part number and manufacture code (as is) and only changed the serial number one digit: The SN began 280, and I entered 281 . The number one being the new number......and it worked like a charm. At least as far as VCDS is concerned and all seems well with the car. Thank you all for your ideas and insights!!!!

[stefdds]

[IMG][/IMG]
Interstate Replacement battery

[stefdds]

This is the Original battery and string that I used (except for entering SN 281.....)

[stefdds]

[IMG][/IMG]

[JBAeroEngineer]

[IMG][/IMG]
Interstate Replacement battery

Is this an AGM?

[K__bz]

Im a bit confused by my new batteries code.... Its not the same format as everyone else's, but my old battery was.
Its a stock replacement.




Image doesnt work, my new BEM is just 000915105CE

Does anyone know what I should change my code to?

[Smac770]

I didn't bother changing my part number or vendor when I replaced my factory battery with a Napa one. The specs (92AH, 850CCA, wet AGM) are the same. So in the absence of the battery industry's acceptance of BEM coding, I left the part number and vendor the same and just changed the serial number to the one from the new battery. The original part number is still in there, 4F0915105E, which is these days now the 000915105CE. Seems no one has any actual translation table of part numbers to actual charging system parameters, so I wonder if the part number is even used. Other than a warning of "oh, this isn't the same part number as the one we're trying to install".

[Adams-Allroad]

Why do we need to add serial of new battery

[Nano909]

Why do we need to add serial of new battery

Don't need a serial. You can just change the last number/letter to tell the car it has a new battery.

[ElusionPDX]

Don't need a serial. You can just change the last number/letter to tell the car it has a new battery.

I've tried this and it hasn't worked for me. IMG_20190127_111827.jpegScreenshot_20190127-111038.jpg

Sent from my Pixel XL using Audizine mobile app

[Nano909]

I've tried this and it hasn't worked for me. IMG_20190127_111827.jpegScreenshot_20190127-111038.jpg

Sent from my Pixel XL using Audizine mobile app

VCDS FTW

[ElusionPDX]

VCDS FTW

I was able to recode it fine. It's that it wasn't fixing the battery recode.

edit: i think i misread that, sorry was stressed hahaha

Sent from my Pixel XL using Audizine mobile app

[Andrew A4]

Well... just over a year later and that Bosch AGM battery I got from Pepboys is now a very heavy doorstop. Had a few sluggish starts and checked the battery meter in the MMI and it was at 2 bars. Hooked it up and to my Noco Genius charger and it seemed to charge and voltage was about where it should be. Started the car, went to the hardware store, and had to call AAA to get jumped so i could drive home.

Let it run for a while, then shut down and voltage looked ok. Hooked it back up to the Noco for AGM maintenance mode and the next morning decided to see what happens to the voltage when its started. Turning over the engine caused the voltage to drop from 12.6 into the 8v range, then back up to 14.4v when the alternator kicked in.

So long story short, capacity is gone pretty much. I never got around to returning the original battery for the Core fee, so after giving that a charge with the Noco Genius, i swapped them out and it started right up. For the hell of it i shut it off and pushed start again and it started a second time. Clearly the bosch battery is FUBAR. I hope pepboys swaps it out without making it into an all afternoon ordeal.

Diagnosing things would have been so much easier had my laptop not bit the dust a few months ago. Guess its time to get a new one so i can hookup VCSD.

[Redd]

IIRC any "Bosch" branded battery that you buy in the US will have been made by JCI, who make generally good stuff. In this case under contract to Bosch, not Pep Boys, so it has to meet Bosch standards. You could of course simply have gotten a bad battery--that happens regardless of brands. If you bought it with a credit card, check to see if they will double the original one year replacement warranty. (Some exclude automotive parts, you may need to call them to find out.)

Then there's also the question of programing. The consensus seems to be that programming the new battery into the car (VAG-COM, etc.) only affects storage of the serial number (for warranty purposes) and tells the car vaguely when it might need replacement--but there's no indication that programming changes the charging voltage or behavior or the charging system. Most peculiar--but that's what it seems.

I'd be curious to know if you DID reprogram the car, and if so, just what/how.

[uberwgn]

Andrew, that's a shame. Pepboi needs to step up and replace this. A battery like that could have a 2yr. warranty.

Ross Tech has a very good video on their site dedicated to coding.

Good luck with it.

[Redd]

The problem with coding, is that those of us who have done it (often several times with different battery capacities as a test) have found that it does nothing obvious to affect performance of the charging system, and AoA refuses to comment on what is really being done. Battery management takes good advantage of computers, coulomb counters, system volt and current tests...even internal battery resistance, all of which the Audi's have. But, it all seems to be a dog and pony show, where the charging system follows a fixed logic (regardless of the programming) and only knows "this battery should be replace in xx years" and it counts down mindlessly to that point.

Compare that to a modern marine or solar charging system, all of which use proprietary algorithms (or industry standard chipsets that are documented) AND where all of those are glad to tell you what they are counting and what they do with the information. Audi? AoA says ask your dealer. The dealer has no reason to know the algorithms, and will always say "There there dear, don't you worry your silly head about that, just buy this Audi Assistance and we'll take care of that for you.

[Andrew A4]

So i went into pepboys today and dropped the boat anchor on the counter expecting a hassle to get a new one, and to my surprise he simply took it, set it on the ground and gave me a brand new one that was made in April, 2019. Didn't ask for my receipt or have me sign anything. Seems to me i got another 4 year warranty starting today. lol.

Also, grabbed a cheap 2-in-1 laptop over the weekend in that big prime sale on amazon and updated the firmware on my old clone HEX-CAN cable, allowing it to run VCDS 18.9.0 instead of 11.11.0 and all is well.

I will need to properly code this battery since my car originally had a Moll standard Lead-Wet battery and these batteries are different spec as well as being AGM. The Bosch battery I'm installing is indeed made by JCI. Which also makes Varta. That being the case, i found in another thread a BEM sticker for a Varta AGM with identical specs as this Bosch.

My Original factory battery had the following coding in VCDS:
8K0915105F MLA 100113DOOJ

The BEM Code for the matching battery is:
000915105CE
JCB420412C09T

It's my understanding that the 000 should be changed to 8K0.

So to confirm, i need to put the following into 19 CAN Gateway Channel 4:

8K0915105CE JCB 420412C09T

[brutus27]

So i went into pepboys today and dropped the boat anchor on the counter expecting a hassle to get a new one, and to my surprise he simply took it, set it on the ground and gave me a brand new one that was made in April, 2019. Didn't ask for my receipt or have me sign anything. Seems to me i got another 4 year warranty starting today. lol.

Also, grabbed a cheap 2-in-1 laptop over the weekend in that big prime sale on amazon and updated the firmware on my old clone HEX-CAN cable, allowing it to run VCDS 18.9.0 instead of 11.11.0 and all is well.

I will need to properly code this battery since my car originally had a Moll standard Lead-Wet battery and these batteries are different spec as well as being AGM. The Bosch battery I'm installing is indeed made by JCI. Which also makes Varta. That being the case, i found in another thread a BEM sticker for a Varta AGM with identical specs as this Bosch.

My Original factory battery had the following coding in VCDS:
8K0915105F MLA 100113DOOJ

The BEM Code for the matching battery is:
000915105CE
JCB420412C09T

It's my understanding that the 000 should be changed to 8K0.

So to confirm, i need to put the following into 19 CAN Gateway Channel 4:

8K0915105CE JCB 420412C09T

So Andrew, did this work? Have you had any issues?
I'm replacing my Varta AGM to a Varta Lead Wet.

[c99]

A lot of bullshit about BEM, it's not magic.

For B9 cars:
1. type, write battery type: VLIES=AGM=VRLA, etc.
2. capacity, write correct battery capacity
3. battery vendor: Varta, Exide, JCB, etc.
4. serial number, you can write whatever You want, it says nothing to the car, it´s just serial number of 10 digits, You can use "1111111111", or let what is there now.

That's it.

[audrobotic]

Glad you cleared that up two years later. lol.

B8 forum btw.

[JBAeroEngineer]

A lot of bullshit about BEM, it's not magic.

For B9 cars:
1. type, write battery type: VLIES=AGM=VRLA, etc.
2. capacity, write correct battery capacity
3. battery vendor: Varta, Exide, JCB, etc.
4. serial number, you can write whatever You want, it says nothing to the car, it´s just serial number of 10 digits, You can use "1111111111", or let what is there now.

That's it.

Which module/adaptation is this under for b9?

[Smac770]

The same, J533, 19-CAN Gateway. But the B9 J533 is UDS, so the adaptations are just a list of names, not numerical ids. And the three components each have their own adaptation name in the list.

[Surrey Sam]

Just to throw this out there, I have a Euro B8 RS4 which required a new battery. The original battery has lasted 8 years, as it did so in my previous generation B7 RS4 as well.

So I purchased an OEM Varta battery with near identical specs to the original Audi Varta, popped it in and went to code it. But before doing that I just thought about having a look using VCDS at the advanced measuring values, where you can get a battery health figure. With original coding and new battery installed it was showing 84%. So I then coded the new battery by changing the serial number by 2 digits, saved this and then rechecked the health status which was now showing 100% with the new coding. Make of that what you will.

[romaleev]

Hi all,

Recently my Audi A4 2013 battery died, so I replaced it with the similar aftermarket one.

Original AGM 92Ah battery:
IMG_6843_orig.jpg

New AGM 95Ah battery:
IMG_6844_new.jpg

After replace I reset the battery status by changing the last letter of the serial via VCDS, the BEM code is the same, 92Ah 4F0915105E

However after a month of driving I realised that the battery status is between 80-90%, never reaches 100%

VCDS stats:
IMG_7761.jpg
IMG_7762.jpg


Does it mean that my new battery is undercharged?
Any idea what is wrong and how it can be fixed?

[tower9]

Recently my A6 C7 subwoofer went silent and I thought mby power saving has kicked in. Checked with VCDS, but did not find any power saving related errors. There was one morning with very very slow cranking this winter after night with -20 C, but it did start. VCDS shows single battery in history:





Battery itself:

205# 7P0 915 105 D   #1055801 #332486349#30091139*205 JCB1B9U0KG2

300911 part is battery manufacturing date? I guess AGM batteries + battery management is a thing after all. That is more than 12 years...

[Smac770]

It would be a lot easier to interpret the history log if you just posted the actual history log instead of the VCDS attempt to present an interpretation. Just post all the five lines from section 4 if you want.

My AGM was 12 years old when I replaced it, and it wasn't even the battery that was the issue. Less than 10 years for an AGM means it was not well maintained. Which is very common of drivers with mostly short trips and let it sit long periods at low SoC, etc.

[DrGER]

...

205# 7P0 915 105 D   #1055801 #332486349#30091139*205 JCB1B9U0KG2

300911 part is battery manufacturing date? I guess AGM batteries + battery management is a thing after all. That is more than 12 years...

I don't think I've seen this noted before. The QR code from our '17 A4Q (PR-J1N) is consistent with this observation:

205# 7P0 915 105 A 	#0754201  #332486349#22041716*205 JCB3H4M2S2-*=

Thus, the battery production date appears to be 22 Apr 2017 -- the negative post is stamped "17/17" and the car build date is May 2017. --g

[tower9]

It would be a lot easier to interpret the history log if you just posted the actual history log instead of the VCDS attempt to present an interpretation. Just post all the five lines from section 4 if you want.

My AGM was 12 years old when I replaced it, and it wasn't even the battery that was the issue. Less than 10 years for an AGM means it was not well maintained. Which is very common of drivers with mostly short trips and let it sit long periods at low SoC, etc.

Sorry, I was more interested in QR code and battery age rather than discussing history data Here you go:

Record 1/16: No-load voltage underranging
2024-04-09-17:54*00.0*01*03509***
2024-04-07-19:40*04.0*01**
2024-04-07-14:59*00.7*01**
2024-04-05-04:07*00.3*01**
2024-04-04-17:34*00.3*01**
2024-04-02-06:58*12.5*01**
2024-03-31-17:44*01.3*01**
2024-01-07-23:10*00.1*01*00087***
2024-01-07-15:36*00.2*01**
2024-01-07-14:20*00.0*01**
2024-01-04-07:04*00.0*01**
2023-12-08-17:59*00.0*01**
2023-05-19-19:21*00.0*01**
2023-03-08-14:16*00.0*01**
2000-01-01-00:00*00.0*00*00000***
2000-01-01-00:00*00.0*00**
2000-01-01-00:00*00.0*00**
2000-01-01-00:00*00.0*00**
2000-01-01-00:00*00.0*00**
2000-01-01-00:00*00.0*00**
2000-01-01-00:00*00.0*00**

Record 2/16: No-load current overranging
2015-11-16-14:05*0001*035*-00.03*0-0-0-0-0-0*0*01*00042**
2015-08-20-19:07*0001*049*-00.03*0-0-0-0-0-0*0*01**
2015-07-11-14:03*0001*067*-00.03*0-0-0-0-0-0*0*01**
2015-07-02-08:00*0001*046*-00.02*0-0-0-0-0-0*0*01**
2015-06-30-14:08*0001*047*-00.02*0-0-0-0-0-0*0*01**
2015-04-27-06:46*0001*044*-00.04*0-0-0-0-0-0*0*01**
2015-04-03-17:46*0001*044*-00.03*0-0-0-0-0-0*0*01**
2015-03-04-13:38*0001*045*-00.03*0-0-0-0-0-0*0*01**
2015-02-12-13:14*0004*057*-00.06*0-0-0-0-0-0*0*01**
2015-02-04-10:18*0001*056*-00.04*0-0-0-0-0-0*0*01**

Record 3/16: Shut-off stage history
2024-01-08-08:22*1*0*073*005*-06.79*0-0-0-0-0-0*0*0*00.0*00.0**
2024-01-08-05:55*1*0*071*003*-06.79*0-0-0-0-0-0*0*0*00.0*00.0**
2024-01-07-23:34*1*0*071*004*-06.76*0-0-0-0-0-0*0*0*00.0*00.0**
2024-01-07-16:57*1*0*071*004*-11.06*0-0-0-0-0-0*0*0*00.0*00.0**
2024-01-07-16:36*1*0*072*004*-06.78*0-0-0-0-0-0*0*0*00.0*00.0**
2024-01-07-16:00*1*0*073*004*-06.81*0-0-0-0-0-0*0*0*00.0*00.0**
2024-01-07-14:23*3*0*073*000*-06.76*0-0-0-0-0-0*0*0*00.0*00.0**
2024-01-07-14:22*1*0*073*000*-03.00*0-0-0-0-0-0*0*0*00.0*00.0**
2024-01-07-14:15*3*0*073*000*-06.72*0-0-0-0-0-0*0*0*00.0*00.0**
2024-01-07-14:14*1*0*073*000*-07.00*0-0-0-0-0-0*0*0*00.0*00.0**
2021-12-21-13:35*3*0*054*000*-06.99*0-0-0-0-0-0*0*0*00.0*00.0**
2021-12-21-11:28*3*0*054*000*-07.30*0-0-0-0-0-0*0*0*00.0*00.0**
2021-09-07-09:46*1*0*070*032*-05.77*0-0-0-0-0-0*0*0*00.0*00.0**
2015-11-28-13:58*1*0*053*020*-05.65*0-0-0-0-0-0*0*0*00.0*00.0**
2015-11-16-07:20*1*0*062*035*-05.62*0-0-0-0-0-0*0*0*00.0*00.0**

Record 4/16: Battery change history
2011-10-12-01:22*01*105*JCB*110930U0KG*09500*27793*0000*0000*0000**
2000-01-01-00:00*00*---*---*----------*09999*00000*0000*0000*0000**
2000-01-01-00:00*00*---*---*----------*00000*00000*0000*0000*0000**
2000-01-01-00:00*00*---*---*----------*00000*00000*0000*0000*0000**
2000-01-01-00:00*00*---*---*----------*00000*00000*0000*0000*0000**

Record 5/16: Energy-critical vehicle states
2024-01-07-23:08*-00.07*-00.13*-10.59*11.79*001*06*-01.1*27274*09500*246992*0-0-0-0-0-0*0*00.0*00.0*006.2*01*00*04**
2024-01-07-14:13*-00.03*-00.04*-09.51*11.85*002*06*-01.2*27269*09500*246967*0-0-0-0-0-0*0*00.0*00.0*019.1*01*00*03**
2021-12-21-11:27*-00.12*-00.18*-10.56*12.00*002*05*-00.8*23272*09499*212403*0-0-0-0-0-0*0*00.0*00.0*003.0*01*00*02**
2021-02-14-09:01*-00.02*-00.04*-10.05*11.84*001*05*-01.3*21604*09500*198813*0-0-0-0-0-0*0*00.0*00.0*021.5*01*00*01**
2000-01-01-00:00*+00.00*+00.00*+00.00*00.00*000*00*+00.0*00000*00000*000000*0-0-0-0-0-0*0*00.0*00.0*000.0*00*00*00**

Record 6/16: Energy balances (last 20 trips)
2024-04-09-18:47*044*+18*+000.4*00.03**
2024-04-09-17:54*047*+18*+001.6*00.76**
2024-04-09-07:07*050*+11*+001.4*01.13**
2024-04-08-17:06*048*+12*+001.7*01.05**
2024-04-08-07:05*050*+11*+003.2*01.21**
2024-04-07-20:09*031*+09*+000.4*00.05**
2024-04-07-20:00*031*+09*+000.4*00.03**
2024-04-07-19:44*031*+09*+002.2*00.23**
2024-04-07-19:40*023*+08*-000.1*00.00**
2024-04-07-15:00*026*+06*+000.4*00.01**
2024-04-07-12:05*028*+04*+000.2*00.01**
2024-04-07-11:44*029*+04*+000.6*00.21**
2024-04-07-11:37*028*+04*+000.2*00.05**
2024-04-06-13:39*028*+06*+000.9*00.20**
2024-04-06-13:18*025*+05*+001.6*00.21**
2024-04-06-13:06*021*+04*+000.6*00.05**
2024-04-06-12:24*024*+04*+000.3*00.05**
2024-04-05-19:06*023*+03*+001.2*00.10**
2024-04-05-18:34*023*+02*+001.1*00.08**
2024-04-05-17:50*027*+02*+000.5*00.16**

Record 7/16: Energy balances (last 20 standing times)
2024-04-09-18:41*045*-000.4*000.1*00.0*00.0**
2024-04-09-08:16*035*-001.4*009.6*00.0*00.0**
2024-04-08-18:09*035*-001.4*012.9*00.0*00.0**
2024-04-08-08:18*033*-001.1*008.7*00.0*00.0**
2024-04-07-20:12*032*-001.3*010.8*00.0*00.0**
2024-04-07-20:02*030*-000.3*000.1*00.0*00.0**
2024-04-07-19:59*030*-000.2*000.0*00.0*00.0**
2024-04-07-19:41*027*-000.3*000.0*00.0*00.0**
2024-04-07-15:01*020*-001.0*004.6*00.0*00.0**
2024-04-07-12:07*025*-002.2*002.8*00.1*00.0**
2024-04-07-12:03*029*-000.2*000.0*00.0*00.0**
2024-04-07-11:58*029*-000.3*000.0*00.0*00.0**
2024-04-07-11:40*027*-000.2*000.0*00.0*00.0**
2024-04-06-13:51*027*-001.3*021.7*00.0*00.0**
2024-04-06-13:31*025*-000.3*000.1*00.0*00.0**
2024-04-06-13:09*020*-000.4*000.1*00.0*00.0**
2024-04-06-12:27*017*-001.3*000.6*00.0*00.0**
2024-04-05-19:13*020*-001.1*017.1*00.0*00.0**
2024-04-05-18:39*021*-001.0*000.4*00.0*00.0**
2024-04-05-18:01*021*-002.8*000.5*00.1*00.1**

Record 8/16: Battery manipulation (e.g. charging)
2024-04-07-12:04*7*19*00*00*09*01*2000-01-01-00:00*01**
2024-04-07-12:04*7*19*00*00*09*01*2000-01-01-00:00*01**
2024-04-05-18:40*7*19*00*00*09*01*2000-01-01-00:00*01**
2024-04-05-18:40*7*19*00*00*09*01*2000-01-01-00:00*01**
2024-04-05-18:26*7*19*00*00*09*01*2000-01-01-00:00*01**

Record 9/16: Battery aging
2011-10-11-22:57*100*100*100*100*00000*12.80*+19*01*12.70*00000*00000**
2024-03-29-13:57*055*055*073*028*27716*12.40*+07*01*03.80*01829*04906**
2024-03-01-11:30*055*056*067*020*27533*12.30*+00*01*03.80*01822*04906**
2024-02-02-19:10*055*055*078*026*27403*12.50*-01*01*03.70*01815*04906**
2024-01-04-17:53*054*051*074*013*27256*12.40*-12*01*03.65*01807*04906**
2023-12-08-12:19*055*054*063*011*27119*12.30*-08*01*03.60*01799*04906**
2023-11-09-18:19*058*059*080*035*26975*12.50*+08*01*03.65*01792*04906**
2023-10-12-17:46*061*060*075*036*26802*12.50*+11*01*03.60*01784*04906**
2023-09-16-13:34*060*063*075*035*26677*12.50*+11*01*03.60*01778*04906**
2023-08-19-13:34*061*064*073*037*26525*12.40*+19*01*03.65*01773*04906**
2023-07-22-18:29*060*062*086*046*26398*12.60*+20*01*03.65*01769*04906**
2023-06-26-18:29*060*063*082*043*26270*12.50*+21*01*03.65*01764*04906**

Record 10/16: Dynamic energy management
2000-01-01-00:00*0*000.0*0*000.0*0*000.0*00.00**
2000-01-01-00:00*0*000.0*0*000.0*0*000.0*00.00**
2000-01-01-00:00*0*000.0*0*000.0*0*000.0*00.00**
2000-01-01-00:00*0*000.0*0*000.0*0*000.0*00.00**
2000-01-01-00:00*0*000.0*0*000.0*0*000.0*00.00**

2000-01-01-00:00*0*0*0*00.00**
2000-01-01-00:00*0*0*0*00.00**
2000-01-01-00:00*0*0*0*00.00**
2000-01-01-00:00*0*0*0*00.00**
2000-01-01-00:00*0*0*0*00.00**

2000-01-01-00:00*0*000.0*00.00**
2000-01-01-00:00*0*000.0*00.00**
2000-01-01-00:00*0*000.0*00.00**
2000-01-01-00:00*0*000.0*00.00**
2000-01-01-00:00*0*000.0*00.00**

2024-03-07-21:10*68*15.00*14.67*58.80**
2021-12-04-12:30*67*15.00*14.39*19.00**
2020-10-09-16:58*66*15.00*13.35*32.70**
2018-03-29-12:53*65*15.00*10.22*18.50**
2018-03-27-13:14*64*15.00*14.84*28.30**

Record 11/16: Recuperation
2016-05-23-20:57*000*000*001*000*0020*023*00.0*00.1*087*057*095*063*01*00144*00267*00140*00376*00555**
2016-05-23-19:01*000*000*001*006*0137*023*00.1*00.3*086*052*090*060*01**
2016-05-23-18:00*000*000*000*000*0004*025*00.0*00.1*087*058*090*061*01**
2016-05-23-15:01*000*000*002*000*0034*002*00.0*00.4*092*062*092*063*01**
2016-05-23-14:59*000*000*000*000*0008*028*00.0*00.1*088*060*092*062*01**
2016-05-21-16:58*000*000*001*000*0000*015*00.0*00.1*084*054*091*060*01**
2016-05-20-21:25*000*000*010*000*0200*014*00.2*01.0*093*064*093*064*01**
2016-05-20-21:12*000*000*007*000*0114*009*00.0*00.6*093*064*094*064*01**
2016-05-20-21:06*000*000*002*000*0079*029*00.1*00.2*088*059*093*064*01**
2016-05-20-12:57*000*000*000*004*0143*051*00.3*00.6*086*055*087*055*03**

Record 12/16: Start-Stop
2024-04-09-07:07*1*077*033*+10*02*+30.0*-10.7*11.2*1**
2024-04-07-19:40*1*069*020*+08*02*+30.0*-09.3*11.2*1**
2024-04-01-10:21*1*074*025*+12*02*+30.0*-05.6*11.6*1**
2024-03-30-12:11*1*066*024*+06*02*+30.0*-11.6*11.1*1**
2024-03-23-14:58*1*073*027*+04*02*+30.0*-05.1*11.4*1**
00496*00092*00020**

Record 13/16: Sporadic alternator faults
2000-01-01-00:00*0-0-0-0-0*000.0*00000**
2000-01-01-00:00*0-0-0-0-0*000.0**
2000-01-01-00:00*0-0-0-0-0*000.0**
2000-01-01-00:00*0-0-0-0-0*000.0**
2000-01-01-00:00*0-0-0-0-0*000.0**

Record 14/16: Small battery for hybrid vehicle
2024-04-09-21:04**

Record 15/16: Local activ.
2000-01-01-00:00*000*00*00*000*00*00*000*00*00**
2000-01-01-00:00*000*00*00*000*00*00*000*00*00**
2000-01-01-00:00*000*00*00*000*00*00*000*00*00**
2000-01-01-00:00*000*00*00*000*00*00*000*00*00**
2000-01-01-00:00*000*00*00*000*00*00*000*00*00**
2000-01-01-00:00*000*00*00*000*00*00*000*00*00**
2000-01-01-00:00*000*00*00*000*00*00*000*00*00**
2000-01-01-00:00*000*00*00*000*00*00*000*00*00**
2000-01-01-00:00*000*00*00*000*00*00*000*00*00**
2000-01-01-00:00*000*00*00*000*00*00*000*00*00**

Record 16/16: Vehicle energy balance
252064**
00484*05061*16853*00435*00000**
05984*00128*00047*00003**
51360*02668*00301*00030**
06027*11642*05355*05646**
17902*08474*02294**
00000*00000*00000*00000**
21329*01667*00198*00024**
10968*00058*00008**
00030*00000*00000**
00068*00004*00001**
01961*00946*00650*00525*00448*00366*00526*00364*00243*00257**

I don't think I've seen this noted before. The QR code from our '17 A4Q (PR-J1N) is consistent with this observation:

Thank you, then I'm assuming it is manufacturing date.

Anyhow, bought new VARTA A4 with code Z5G438012 0269, same Ah, planning to swap today. Not sure if I understood VARTA code correctly, but I think manufacturing date is 01 Feb 2024 and serial is 0269.

Serial itself is not that important, it is only important to tell car that it is different by at least one digit? I'll tell the car following new values:

• Manufacturer JCB -> VA0
• Serial 110930U0KG -> 2402010269

And hopefully will not see it die sooner than half the old battery lasted (fingers crossed, no promises)

[Smac770]

Yeah, I realized after that your post had transitioned from the history data of the car to the barcode data of the battery. As DrGER pointed out, your interpretation of the battery manufacture date in the battery barcode appears correct. We also see the subject discussed here, https://www.audizine.com/forum/showt...acement-Coding

So your battery barcode says manufacture date of Sep 30 '11, and your history data says an installation/adaptation date of Oct 12 '11. So 12.5 years, which is not a surprise for an AGM.

The manufacturer code and serial number are recorded into the history data by the adaptation action for warranty claim purposes. Those two data are not relevant to any operational purpose.

What are you guys using to decode the data matrix type barcode? Seems the iPhone doesn't decrypt that natively, like it does for QR barcodes.