If it’s the battery, sounds likely the battery is due for replacement.

A good year is this: after a solid charge like 90 minutes of driving or overnight on a charger, run your hazards for 10-20 minutes. If the car starts hard or doesn’t start either battery is shot or the starter or bad connection somewhere.

Get yourself a bolt power battery jump starter you won’t need AAA. You can even help others (I’ve used my emergency jump battery 3x as often on other people’s cars than mine)

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)