F series 90Ah battery to 95Ah replacement

[Martin97]

Hi,

I have noticed that battery registration and programming questions are common since in Europe the 95Ah AGM aftermarket battery is a popular choice but no one provides a comprehensive explanation on this topic all around the forums and facebook groups.

BMW F10, changing the battery from oem 90Ah 900A AGM to a non-oem 95Ah 850A AGM.

The question is if it is enough to register it as a new battery with ISTA or it also has to be coded with ESYS since the battery specs are different? It seems like there is no parameter for 95Ah AGM and it has to stay as 90Ah AGM because that is the closest spec to 95Ah, therefore, in this exact case (where it was 90Ah previously) it is enough to only register it as new battery with ISTA and no coding has to be done, correct? Or some coding has to be done anyway?

If it has then what kind of coding has to be done since these are the only options for specs of the AGM battery and previously it was 90Ah, now replacing to 95Ah?

A070
A080
A090
A105

Thank you, looking forward to your feedback.