Explain the dual battery system in my '07.
Newbie
Joined: Oct 2024
Posts: 1
Likes: 0
Bit late to the party, but I got a question
I got a problem with my radio, and I suspect it might be the consumer battery
Couple of days ago a drove a bit (1.5 hours with a small bathroom break in between) and measured my consumer battery
so without keys in the ignition, it gave 12.4V. Weird i thought, I just drove all the time, and last time i measured i only drove 10 minutes in 1 week and it measured 12.4v So i put in the Keys and turned them (just before starting the car) so everything came on.I checked the voltage. 12.03V.
With the engine on it gives 14.4V (just got a brand new alternator, old one was bad, so this cant be the issue)
Is 12.03 considered bad?
I got a problem with my radio, and I suspect it might be the consumer battery
Couple of days ago a drove a bit (1.5 hours with a small bathroom break in between) and measured my consumer battery
so without keys in the ignition, it gave 12.4V. Weird i thought, I just drove all the time, and last time i measured i only drove 10 minutes in 1 week and it measured 12.4v So i put in the Keys and turned them (just before starting the car) so everything came on.I checked the voltage. 12.03V.
With the engine on it gives 14.4V (just got a brand new alternator, old one was bad, so this cant be the issue)
Is 12.03 considered bad?
MBWorld Fanatic!
Joined: Aug 2014
Posts: 5,315
Likes: 1,672
S500
why are we babbling about the battery - get a new tuner amp THEY ALL DIE
they first get flaky with sound dropping out randomly - when dead the display will be there but all the text and numbers of stations vanishes and the sounds is gone - the amp is dying - eventually it will be like this all the time
