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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.

You cant code 95Ah battery. Just leave it at 90Ah and just register new battery or code 90Ah AGM and register new battery. Dont think any BMWs can code 95Ah battery.

I have registered it as new and left it as 90 Ah AGM, since there's no 95 Ah AGM option.

Thank you very much!

I have a 90 amp battery on f11 , not AGM. But it is not coded for AGM. I have already driven about 30,000 km and there is no problem. Should I code it as a non-agm battery, and what are the problems it can cause me? thanks

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(12-25-2020, 08:15 PM)Eyestorm Wrote: [ -> ]You cant code 95Ah battery. Just leave it at 90Ah and just register new battery or code 90Ah AGM and register new battery. Dont think any BMWs can code 95Ah battery.

I have a 90 amp battery on f11 , not AGM. But it is not coded for AGM. I have already driven about 30,000 km and there is no problem. Should I code it as a non-agm battery, and what are the problems it can cause me? thanks

(08-03-2022, 06:49 PM)nikvikviknik Wrote: [ -> ]I have a 90 amp battery on f11 , not AGM. But it is not coded for AGM. I have already driven about 30,000 km and there is no problem. Should I code it as a non-agm  battery, and what are the problems it can cause me? thanks

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(12-25-2020, 08:15 PM)Eyestorm Wrote: [ -> ]You cant code 95Ah battery. Just leave it at 90Ah and just register new battery or code 90Ah AGM and register new battery. Dont think any BMWs can code 95Ah battery.

I have a 90 amp battery on f11 , not AGM. But it is not coded for AGM. I have already driven about 30,000 km and there is no problem. Should I code it as a non-agm battery, and what are the problems it can cause me? thanks

You should code 90 map AGM. It's because your car have IBS sensor and a smart alternator. If you don't code the right battery you battery will not last as long as it suppost to(8-10 years). AGM battery is not charge the same way that a non-AGM battery. Your car wont explode if you don't code.