Battery AC DELCO or OEM BMW

I had one with the battery that lasted just under 12 years.... Old original BMW batteries are built different! Especially if the car is driven regularly.

Same with my 2008 BMW 535d. 900ah and still going strong

I had a battery in a 93 BMW last forever like that

I put in ACDelco and surprisingly it lasted till last week (Aug 2024).

The AcDelco I installed in 2021 December died this morning so I'd say it's good. It lasted almost 3 years and I only park outside + have a whole sound system + aftermarket horns.

I'd recommend AC Delco - had 2 batteries from Repco (made by century) for my VZ Commodore Wagon and returned them both for dropped cells within a month of fitting - had no issues with the AC Delco at all, even leaving the car sitting for over two weeks it still started first turn of the key

Regardless, while that’s sorta old for a battery, I have OEM BMW batteries going on 12 years with 89% charge capacity.

BMW i3… loved that little toaster but 80 mile range wasn’t cutting it anymore. I still enjoyed running errands and zipping through parking lots.

530e with a little over 20,000 miles shows 10 miles electric range on a nice summer day. It used to show 15 when new. BMW said that the drop was not warranty worthy.

my bmw would say this, a year after having a new oem batt installed, and only in the winter, dealer couldn't find the problem, so I traded it in for another subaru because parasitic draws are the last thing you want in a german car