Battery Voltage
02-19-2019, 10:19 AM
#1
Super Member
Thread Starter
Battery Voltage
The other day I got to start the car after it's been sitting for 2 weeks and had some of the functions not working due to low battery voltage. Car drove fine no issue after a few minutes and hasn't really given me any problems since. When I'm driving its at 13.-14.1 and the reason why I'm posting this is I decided today just for the heck of it to look at the voltage and when I was turning to key to turn the car ON it dropped to 10.2-10.5.
02-19-2019, 11:27 AM
#2
MBWorld Fanatic!
Either a weak battery or there is a amp draw while it sits. I've read here before of people having issues after the car sits for awhile. Most will keep a battery tender connected while it's not being driven. I do this also.
If it were being driven everyday you may not even notice it.
If it were being driven everyday you may not even notice it.
02-19-2019, 11:42 AM
#3
Super Member
Thread Starter
Either a weak battery or there is a amp draw while it sits. I've read here before of people having issues after the car sits for awhile. Most will keep a battery tender connected while it's not being driven. I do this also.
If it were being driven everyday you may not even notice it.
If it were being driven everyday you may not even notice it.
02-19-2019, 02:19 PM
#6
MBWorld Fanatic!
What you want is key out battery @ 12vdc.
Then when start spinning hope it never goes below 9VDC.
If it goes lower then 9VDC you will need new battery pretty soon
Then when start spinning hope it never goes below 9VDC.
If it goes lower then 9VDC you will need new battery pretty soon
02-19-2019, 02:26 PM
#7
Super Member
Thread Starter
ya so far it goes to about 10.1-10.5 during crank. I think just not driving it for a couple of weeks and hooking up the camera to turn on when it detects someone there put a strain on it. It's not a new batter being from 2010. Next month ill just change it out for piece of mind. I would do it now if I didn't have a couple of issues with my E550
