New battery
Thread Starter
Junior Member
Joined: Jul 2017
Posts: 58
Likes: 7
From: Iowa City, IA
C300 W205, GLE300 W166
New battery
Hello geniuses,
i replaced my 6 or 7 yr old battery today preemptively, been having slow starts 2-3x a week. With the old battery, looking at the voltage on the command screen(engine details) it moved from 14.8v down to 14.5 as i drove.
With the new battery driving around just now, it’s been reading 14.0v down to 13.5, then when not moving back up to 14.5v….
is this a “new battery break-in period,” or did i get a bad battery?(or does it always do this?)
Thank you, i appreciate any help!
i replaced my 6 or 7 yr old battery today preemptively, been having slow starts 2-3x a week. With the old battery, looking at the voltage on the command screen(engine details) it moved from 14.8v down to 14.5 as i drove.
With the new battery driving around just now, it’s been reading 14.0v down to 13.5, then when not moving back up to 14.5v….
is this a “new battery break-in period,” or did i get a bad battery?(or does it always do this?)
Thank you, i appreciate any help!
Out Of Control!!
Joined: Sep 2018
Posts: 14,692
Likes: 4,584
From: unbegrenzt
2017 GLE350 4MATIC
No such thing as a battery break in period.
Do you have codes or CEL?
OEM/dealer battery is best. If you bought the battery elsewhere, run it until it quits.
Time is now to replace the aux battery if this job has not been done.
Do you have codes or CEL?
OEM/dealer battery is best. If you bought the battery elsewhere, run it until it quits.
Time is now to replace the aux battery if this job has not been done.
