Follow-up to 2 good posts on your battery - what about new AGM??
Battery Replacement - Page 2 - BMW X5 and X6 Forum (F15/F16)
Original BMW AGM-battery 92 AH (61216806755) | HUBAUER-Shop.de
Battery replacement - BMW 3-Series (E90 E92) Forum
Battery bmw agm 90 ah 900a 12v original 7607983 - Online car parts ❱ XDALYS
BMW Batterie 90 Ah - leebmann24.de
Changing the battery of BMW F30 — AGM to Lead Acid | by TheF30 Blog | Medium
bmw f30,f31.... akumulator baterija 90ah AGM start stop 900a
吧生人(klang people) - Banner BMW Original Battery 90L AGM Best for BMW F10,F30 and other etc PRODUCT INFORMATION: Short Code : Banner BMW 90L AGM European Type No. (ETN) : 612 169