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      12-20-2016, 10:22 AM   #20
bNks334
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Drives: '11 135i (N55)
Join Date: May 2014
Location: New York

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You absolutely can replace an AGM battery with a wet-cell battery. You just need to code for the change so it charges correctly (AGM and Lead-acid batteries require different amperage during charging). There is definitely benefits to running AGM batteries though.

I wrote this comprehensive guide on how to register/code a battery: https://www.[spool]street.com/forums...-battery.1020/

Remove the brackets [] around spool.

It walks you through some of your other options.