Submitted by foodking on September 5, 2019
About a month ago, my M3 charged over the charge limit (90%) to 93% and lost 1% of battery capacity. Expected range at 90% for my LR AWD was 275miles for months and dropped to 272. Added the incident to a pending SC appointment and the response was it must have been a glitch and told me recalibrate. I did that and 90% is back to 274/275ish. Yesterday, found the battery charged at 91% and 275miles and as soon as i started moving (about 2feet), it dropped to 272. Is this normal behavior for the battery at 12k miles?