sitting at a light, upon acceleration away it died, wouldn't start, towed home.
checked battery voltage, ~11.25, jumped it and it started. while running voltage was ~13.8.
also - no codes
took 2 year old battery back to costco and got a new one. checked running voltage at battery again ~14
today, battery light comes on a few times.

haven't checked voltage yet.
I'm suspecting the alternator, but is there any computer malfunction that might cause this?
Thanks