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Post by whataboutthis on Feb 13, 2024 9:33:03 GMT
General question about Battery Coding.
I have always been under the assumption (and yes thats a bad thing) that a battery only needs coding if the car has got stop start on it.
Would that be a correct or is it only if you have the battery control wire on the battery,
Reason I ask older Audi's (around 2007) have a control unit 61 fitted but it does not seem to support changes.
Any information gratefully received
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Post by doc0427 on Feb 13, 2024 12:15:24 GMT
I don’t know anything about the Audi you referenced, but coding for a new battery doesn’t really have anything to do with the start/stop function.
The new battery charging systems have digital control algorithms that change the charging behaviour based on several factors including battery size, type, and age, temperature, charge state, etc. Coding lets the computer know what those parameters are.
Start/stop strains the battery more and so likely exasperates any potential battery issues if not coded properly but it’s not the sole reason.
All that said, there are plenty of people that don’t bother to code a new battery. Does it make a difference in “real world” applications? Impossible to determine but for the effort it takes to code it (if you have an appropriate tool like OBD11 or VCDS), there’s no reason not to.
Cheers… DoC
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Post by whataboutthis on Feb 14, 2024 12:03:13 GMT
Thanks for the reply.
I think the answer to my question is that if the car has an extra wire from the battery (battery control module) then you need to code it, if it does not then you cant.
My issue is related to older cars 2008 and previous as some seem to have battery control module (Unit 61) but on some models that dont have stop start you cant code them.
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