E70 Battery Replacement - DIY

[PAX5]

I recently bought an Autozone Duralast H8-AGM battery to replace my original equipment AGM battery.

In the end I decided against the swap because no one at Autozone or the manufacturer of the battery (East Penn Manufacturing) was able to tell me the Amp Hour (AH) rating of the H8-AGM battery (see pics below)...

The AH number is what determines whether or not any coding needs to be performed. The problem with using one of the many formulas available for converting the Reserve Capacity Rating to Amp Hour rating results in values much higher than the 80ah-agm and 90ah-agm settings in Tool32 in EDIABAS. From what I know about AGM batteries, you don't want to over-charge or under-charge the battery ...

There are only 2 batteries I've found that have an AH rating of 92 stamped on the label from the factory. This value is close enough to the 90ah-agm setting and therefor require only registration and not coding (assuming AGM to AGM swap): the East Penn DEKA 9AGM49 ($175 and up) and one made by WorldSourceOne, group 49 AGM (available only through select distributors, $219 and up).

This brings me to my final question: in playing with the registration software, I inadvertently re-registered my old (current battery) ... Is this a problem? I'm told that what I did was just reset the date and mileage, but the alternator current output is still at the appropriate level for the age of the battery ... Anyone?