Battery Exide or OEM BMW
I got 12 years out of the original battery on my E90.
My e93 Battery Laster from 08 and I replaced it this year due to it started having Problems. It still kinda worked but I didnt want to have Problems. Still 17-18 years on a battery is bonkers
Changed my battery this year on my 2005 e46 coupe. There wasn’t a date for the old one, but 3 codes and for one (H1B582092) ChatGPT said that it’s 2005 battery, which just sounds insane if true.
I still have oem in my 3 series from 2015 !
I replaced mine last month after 143k 2013 f30
I still have the original BMW battery on my 2005 e46 sedan
my n55 project car is original from 2011, still haven’t changed it. shows zero signs of weakness
Walmart EverStart (make sure it's at least a 2 year warranty. The economy power ones are junk) or you can get Exide batteries at Home Depot for pretty cheap.
The battery lasted about two years. I had a company car at the time and only drove the BMW on my days off, and didn't drive long or far. The short, infrequent drives basically never allowed the battery to completely charge, resulting in it's early death.
Dealer measured my 2021 m340xi battery at 700cca last week under load test (vs 850 cca capacity) and said battery needed to be replaced. Terminal was stamped 26th week of 2020.
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