electric problem

[Yuval Kaganovich]

Hi i have an issue with voltage on my car
In driving is 12.3 12.4
When i take my foot off the gas is going up to 14.6
What it can be the problem
New agm battery is installed

 

[Legojon]

Hi, do you have any other electrics running? Aircon? 12.4v is a normal voltage for a car battery. Does it go back up to 14.6 every time you let off the gas?

 

[Yuval Kaganovich]

Hi, do you have any other electrics running? Aircon? 12.4v is a normal voltage for a car battery. Does it go back up to 14.6 every time you let off the gas?

I dont have anything on the electric system and yes is go back every time i let the gas off

 

[Legojon]

What are you using to measure the battery voltage? Sounds like the alternator stops charging when put your foot on the gas. I'm not sure if this is normal or not for AGM. But... if it was a fault, your battery would be flat in a couple of weeks.

 

[Yuval Kaganovich]

What are you using to measure the battery voltage? Sounds like the alternator stops charging when put your foot on the gas. I'm not sure if this is normal or not for AGM. But... if it was a fault, your battery would be flat in a couple of weeks.

I have a voltmeter on the car

 

[RADIOTWO]

I have a voltmeter on the car

Where are you taking the reading from ?

 

[Yuval Kaganovich]

Where are you taking the reading from ?

I connect to the fuse box i have read this numbers on the battery with a multimeter to

 

[Yuval Kaganovich]

I have record it

 

[Legojon]

I'd be sticking the multimeter on the alternator next.

 

[Yuval Kaganovich]

I'd be sticking the multimeter on the alternator next.

I have check on the battery to

 

[RADIOTWO]

I have record it

Its not very conclusive, as the recording is not very good but which terminals have you connected it to as I suspect you have a bad connection try connecting it directly across the battery

 

[Yuval Kaganovich]

Its not very conclusive, as the recording is not very good but which terminals have you connected it to as I suspect you have a bad connection try connecting it directly across the battery

Live this volt meter i have check on the battery to
On battery 12.5 on the volt meter 12.3

 

[KXL]

Is this perhaps the regenerative braking occuring on all 'eco' cars these days, channelling back power back? Is your a 1.4 EcoTsi / 1.5 Evo?

 

[Yuval Kaganovich]

Is this perhaps the regenerative braking occuring on all 'eco' cars these days, channelling back power back? Is your a 1.4 EcoTsi / 1.5 Evo?

Leon 1.8

 

[Walone]

Hi i have an issue with voltage on my car
In driving is 12.3 12.4
When i take my foot off the gas is going up to 14.6
What it can be the problem
New agm battery is installed

Was the new battery coded to the car?

 

[Yuval Kaganovich]

Was the new battery coded to the car?

Yes the orginal battery was efb and i have change to agm bosch 70ah start stop and coded this

 

[Big Col]

Was it always a constant 14v before ?

Some manufacturers have a system where under acceleration the alternator disconnects. Do SEAT's do this ? This could be what you are seeing.

 

[Yuval Kaganovich]

Was it always a constant 14v before ?

Some manufacturers have a system where under acceleration the alternator disconnects. Do SEAT's do this ? This could be what you are seeing.

I have this all the with the efb to but the voltage was 12.8 at driving

 

[Yuval Kaganovich]

If i disconnect the wire from the battery monitor control unit the voltage is 14v can i live it disconnect no light on the dashboard just start stop not working

 

[matthab]

What problem are you trying to fix? If the car is working fine and no errors then dont worry about it.