audi b8.5 a4 battery

[Nick27]

ive replaced my battery threw the dealer and at the time here in Canada it is a varta 000915105DL . 110 amp hour. 110AH/520 amp. my option code in my car is J0Z. my question is looking online for batteries and ive come across agm. is this car supposed to have an agm battery inside? it is a 2014 Audi A4 s-line package.

[Spawne32]

The AGM battery is an option, of which I think 3 types were available, H7, H8 and H9 style batteries. You can go with any of them far as I know, I believe the mount accepts all sizes.

[Smac770]

Audi might have put an AGM in it, Audi might not have put an AGM in it. Your PR code is a group 95R non-AGM battery, thus why you have the 110Ah non-AGM instead of the 105Ah AGM. AGM is better (figure lasts at least twice as long) but more expensive. But if you put an AGM in it, you'll have to update the part number encoded in the adaptation to tell the car you have such now. That would probably be 4L0 915 105 or 7P0 915 105 D. The actual part number you'd buy is 000 915 105 CF, but at least on my '09, the J533 doesn't know anything about the 000 versions of the battery part numbers (for example, the part number encoded in your adaptation is probably 8K0 915 105 F).

But to your specifict question, no. PR J0Z is group 95R 110Ah non-AGM.

[Nick27]

smac thanks man! on the battery it says bem code: 000915105DL VAO39080880CX and at the bottom of the QR code 205 VA03J880CXL

[Smac770]

Yeah, that's what's on the battery, and what we would expect. I was more curious about what part number was actually in the adaptation value.

But all in all, everything seems as it should be. You have a non-AGM battery. Yes, AGM versions exist out there. AGM is longer lasting but more expensive. The PR code for a car with the group 95R AGM battery would be J0P.

Why are some AGM and some not? Why are some group 94R, some 49 (like mine), and some 95R? Who knows.

[Spawne32]

Yeah, that's what's on the battery, and what we would expect. I was more curious about what part number was actually in the adaptation value.

But all in all, everything seems as it should be. You have a non-AGM battery. Yes, AGM versions exist out there. AGM is longer lasting but more expensive. The PR code for a car with the group 95R AGM battery would be J0P.

Why are some AGM and some not? Why are some group 94R, some 49 (like mine), and some 95R? Who knows.

If I am not mistaken the AGM batteries were on those that had features like electronic power steering and such. I'd have to double check my receipts but I am fairly certain my car came equipped with one of the smaller lead acid battery types, and I put the largest one I could find in.

[Smac770]

Seems a mixed bag. Aris3.2, iirc, has a 3.2L '09 sedan with the group 95 non-AGM while I have a 2.0T '09 avant with the group 49 AGM. If there is a system to the selection, the pattern is buried deeper than what I can see.

[Theiceman]

If I am not mistaken the AGM batteries were on those that had features like electronic power steering and such. I'd have to double check my receipts but I am fairly certain my car came equipped with one of the smaller lead acid battery types, and I put the largest one I could find in.

His 2014 is electronic power assist and has a non AGM battery, so there might be something more to it.
Wonder if it selected after looking at all options like BO sound system, blind spot radars etc.
I have a 2014 Technik so I'll check mine and see if I can add more data

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[Nick27]

His 2014 is electronic power assist and has a non AGM battery, so there might be something more to it.
Wonder if it selected after looking at all options like BO sound system, blind spot radars etc.
I have a 2014 Technik so I'll check mine and see if I can add more data

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Strange enough I have progressive , pretty much everything in it but blind spot and BO...can the flex fuel version be the reason behind it?

[morris39]

Strange enough I have progressive , pretty much everything in it but blind spot and BO...can the flex fuel version be the reason behind it?

If you own a scanner check if the car has an energy management module or maybe part of Canbus module. Cars which have a more severe load demand e.g. auto start-stop come with energy management and AGM battery. AGM can withstand deeper discharge and EM optimizes charging rates.

[Spawne32]

Seems a mixed bag. Aris3.2, iirc, has a 3.2L '09 sedan with the group 95 non-AGM while I have a 2.0T '09 avant with the group 49 AGM. If there is a system to the selection, the pattern is buried deeper than what I can see.

If this was an american car, it would easily be explained away by the batteries being 10 cents cheaper or they had a bunch left over in a warehouse somewhere, but on a german car, who knows.

[ps2cho]

My 2016 has all options for Premium Plus, sport, B&O etc and I have AGM factory installed.

[Theiceman]

Strange enough I have progressive , pretty much everything in it but blind spot and BO...can the flex fuel version be the reason behind it?

i thought progressive was the base trim , then premium , then premium plus , then the Technik ec add ons , but who knows... ill ket you guys know.
i dont think any car of our gen has start/stop

[Aris3.2]

There’s definitely a pattern on how audi chooses what battery goes into what car.
As is already noted the trim level and options is one of them but seems that engine is also one of them.
Seems odd my 09 prestige 3.2 uses non agm while a 09 prestige 2.0T uses agm.

[Theiceman]

[QUOTE=Aris3.2;14418116]There’s definitely a pattern on how audi chooses what battery goes into what car.
As is already noted the trim level and options is one of them but seems that engine is also one of them.
Seems odd my 09 prestige 3.2 uses non agm while a 09 prestige 2.0T uses agm.[/QUOTE

If I want to know battery type Do i have to remove it ?. Or can I take a pic of options sticker ?

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[Aris3.2]

If i understand you question right you can just check your battery all the information is there,now if it has been changed with an aftermarket you can always see that information on vcds.
Here’s what audi decided that fits my trim-option-engine.

[Aris3.2]

[Nick27]

That’s the exact battery I have in my14 as well. Also when I programmed my battery I followed rosstech and I couldn’t access the information from the battery channel 61. I had to go threw channel 19 and enter the info of the new battery. There must be a reason why aftermarket with my option code have agm batteries available

[Theiceman]

Yeah wasn't sure if I had to pull the battery out but looks like the sticker is right on top.

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[morris39]

That’s the exact battery I have in my14 as well. Also when I programmed my battery I followed rosstech and I couldn’t access the information from the battery channel 61. I had to go threw channel 19 and enter the info of the new battery. There must be a reason why aftermarket with my option code have agm batteries available

So your battery is wet acid (?) Your car has the newer Can Gateway aka Module 19 (not channel) and no longer Module 61 for energy management. Why AGM after market? Upsell, but might pay off depending on your service.

[Smac770]

For the question of what battery Audi put in the car, the PR code is more reliable than the battery in the car. Unless you bought it new and know it's never been changed. For the NAR market B8 vehicles, except maybe the Q5 hybrid which I don't really care about, there are six PR codes:

group 94R, the smaller battery: J1N for 75Ah/420A AGM and J0R for 80Ah/380A flooded
group 49, the "middler" battery: J0B for 92Ah/520A AGM and J1U for 95Ah/450A flooded
group 95R, the larger battery: J0P for 105Ah/580A AGM and J0Z for 110Ah/520A flooded

those A ratings are DIN spec, so might seem small. The 520A DIN batteries are also marked 850A EN, which seems to be about the same as SAE.
You'll notice all the battery groups are the same terminal orientation and same cross-section, the sizes just differ in length, and therefore volume.

On the subject of stop/start, no NAR market B8 had stop/start (again, Q5 hybrid, no idea, don't really care). Stop/start will be a fast death to a standard flooded battery. So when Audi started shipping RoW stop/start equipped vehicles in '09, no doubt they all had AGM batteries. Notice on the Bosch battery page, the S6 AGM has the stop/start icon, the S5 flooded do not: https://www.boschautoparts.com/en/au...nger-batteries

This is an area where Bosch US and Bosch EU very much differ on their tier branding. Here, S6 is AGM and S5 is flooded. But on a European page, S5A is AGM and S4E is enhanced flooded (EFB): https://www.boschaftermarket.com/gb/...8#ce_30004468_

EFB. So they enhanced the standard wet flooded battery to better survive stop/start. Notice it has the stop/start icon on it. But per the details, they are good for basic stop/start, not stop/start that utilizes and regeneration mechanics. Audi's stop/start regeneration is not "real" brake regeneration. It's just a manner of loading the alternator onto the engine only during braking and overrun and boosting the alternator output to power charge the battery. This way the alternator can be less of a load when the engine is working to move the car and still get the battery recharged. This means the battery is under a lot more voltage and charge swing. So such a system dictates AGM in that case. See SSP 426.

None of the Audi B8 batteries that are flooded (these will all be 000 915 105 Dx part numbers) are EFB. At least not meant to be. Could Audi be sourcing EFB as stock for the non-AGM part numbers? It's Audi; anything is possible. The AGM batteries will all be 000 915 105 Cx part numbers. Don't forget, these 000 ... part numbers are not what would be in early cars. No idea when they changed to them, no idea if they were ever used in factory build. But we're stuck with information for replacement parts, not factory parts.

As to what or why NAR market vehicles might have which of the six PR codes, again, I suspect that would require an information compilation that would still be guesswork when it's all done. I do wonder if my car had AGM because with the turbo, it would run the fan during the afterrun period every car shutoff. I notice after I had the stage 1 where my ECU was reflashed with the 2012 standard, the fan has never run on engine shutoff since. Not once. I just hear the hum of the V51 pump, assuming that hum even means it's working. Did they want AGM originally and then get cheap? Who knows, it's Audi, or really, VAG with lipstick the past decade. Cost cutting above all else.

I guess we ask AoA, but AoA seems to have the technical curiosity of a corpse.

[Smac770]

So your battery is wet acid (?) Your car has the newer Can Gateway aka Module 19 (not channel) and no longer Module 61 for energy management. Why AGM after market? Upsell, but might pay off depending on your service.

The B8 platform has the J367 BDM (battery diagnostic monitor) as a LIN slave of the J533 CAN Gateway, CAN address 0x19. No idea what/where address 0x61 is about.

[Smac770]

On address 61, from http://wiki.ross-tech.com/wiki/index...ry_Replacement

Special Notes - Some vehicles like Audi R8 along with some rest-of-world models with Stop-Start, can have a 61 that is really a virtual module in the 19-CAN Gateway. In these cases, the new battery information is entered in 61-Battery Regulation then Adaptation Channel 004.

Not sure why the stop/start vehicles need an address 61 presence, but this would be similar to the J393, where the device that used to be at address 05 was integrated into the J393 so the J393 responds to both address 05 (authorization) and address 46 (central convenience).

Notice the part number in the address 61 example: 4F. So that's going to be the J644 BEM (battery energy management) found in the larger platforms: A8, A6/A7, Q7. Different implementation from the J367 BDM.

[Theiceman]

I wanted to check my battery just to see what I had, and to contribute to this thread, but what a mofo of a job.
Emptied trunk in a parking lot, lifted cover, oh spare tire, removed that, oh black cover, removed that, tool tray , removed that and STILL can't see anything.
There's a bracket over the whole battery and a cover under that so you can't see the battery. Jesus Christ !!!
20210123_150224.jpg20210123_150003.jpg

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[Smac770]

Thou shall not gaze upon the inner sanctum! So just look at the PR code on your PR sticker. :-)

But if you measure the length of the battery, that'll tell you which group size it is. As for AGM vs non-AGM, you should be able to flex up that thin cover enough to see something. The non-AGM will have a sight glass, but it's near the center line and will be under the bracket.

[Nick27]

I guess I do have wet acid battery in my car I remember getting it and moving it around you can see the liquid moving around just the photo in this thread. I keep it topped up with a noco charger. It’s about a year old, would it be better to get an agm or just leave the one I have currently?

[Smac770]

PR code J0Z, so we know the car did not come with an AGM originally. Part number ...Dx, so we know the car does not have an AGM now.

If there's already a perfectly fine battery in the car, there's no point dumping it for an AGM now. The point of the extra cost for AGM in our cars would be the double lifespan or so. If you were needing to replace it, then you have the question of cost vs how long before you might have replace it again. But if you're not going to have the car in 5+ years, ....

[Theiceman]

Finally got the part number for my battery. I'm not sure what type it is but I have service records and appears to be the original.
20210124_123117.jpg

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[Smac770]

That's the same as Aris has, the group 95R non-AGM. So your PR code is also J0Z. If you pull up on the little sticker near the negative post, there should be a round sight glass under there. It is the original part number scheme, so it's likely the original from the factory. The replacement part number these days is 000 915 105 DL.

[Nick27]

That's the same as Aris has, the group 95R non-AGM. So your PR code is also J0Z. If you pull up on the little sticker near the negative post, there should be a round sight glass under there. It is the original part number scheme, so it's likely the original from the factory. The replacement part number these days is 000 915 105 DL.

correct , exactly what I have. isn't ago more powerful especially in colder weather due to less discharge and higher tolerance? if you'd make a replacement why continue to go wet cell?

[Smac770]

I don't understand why a luxury brand like Audi would have anything less than AGM batteries in their cars. Good for 10 years plus and better than flooded in every way but cost. And that's probably why VW, I mean Audi, started putting them in the cars where they didn't have to use an AGM. Cold weather is not really an issue here, but I'd always buy an AGM since I keep my car for long durations. But I wouldn't toss out a brand new battery just to replace it with an AGM; no point throwing away money already spent. Yes, you can see from the stats I posted above, the AGMs have 10% more CCA than the flooded of the same size. And I'm me. There's a lot of people who live by "just good enough for now".

[Theiceman]

Yup Audi warranty for 5 . No point spending money on a battery that will last 10.
My next one will likely by AGM. But this one is 7 and no signs of slowing down yet.
Not going to replace it unless I have to

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