Just had to change my A4 battery sure that was 14.4 but probably .04 then when i checked that.14.1 is normal. 14.4 is a bit on the high side for a cars charging system.
Remove the small wire from the alternator, and check for battery voltage at the wire with the ignition on.
Yes once revved it doesn't budge from 14v heaters stereo lights all on no problems at allMore likely a lazy alternator regulator.
Does it stay at 14 ish once it's been revved up regardless of what's on?