Battery OEM BMW or Duralast
Duralast AGM. No leaking, minimal to no corrosion, god life, decent power, and most importantly it was readily available.
I’m just over 10-years on my ‘15 M235i.
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 !
Both Duralast Golds. Went with Neverstart AGM from wally world about 2 months ago.
Last December, the OEM battery died and I replaced it with a new Duralast battery from AutoZone. Fast forward to today, the car wouldn’t start at all. Had to jump it just to get it running and drove straight to AutoZone to get it tested.
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.
I’m not satisfied with the range (70 miles) or the charging speed (max 19.2 kW via J-1772, taking 4 to 13 hours to charge) of the BMW batteries in my Lion Type C electric school bus.
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