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2007 e90 with white battery. Car consistently starts up fine, nice and quick, but if I listen to the radio with the engine off, the car gives me a low battery warning. I did hook up a charger (to the front charging terminals) and did a slow 2A charge overnight but the error came back again soon after that.
I do mostly short trip driving. Does my battery really need replacing? Like I said, the starting is totally fine so far.
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