Battery Voltage Reading

[Agro]

Anyone know what volts a fully charged Volvo battery in new condition should read on a 2013 V40 D4 5cyl? Mine settles at 12.65V which I think is a bit low, but not sure.

[XC70Virgin]

Originally Posted by Agro

Anyone know what volts a fully charged Volvo battery in new condition should read on a 2013 V40 D4 5cyl? Mine settles at 12.65V which I think is a bit low, but not sure.

If that's with engine off it's fine.

[Agro]

Originally Posted by XC70Virgin

If that's with engine off it's fine.

Thanks for that. I know its fine, just keen to know what a genuine battery in perfect condition (engine off) should read so I can determine the health of the battery.

[piotrek]

Battery voltage depends whether battery was left disconnected and untouched for 3-4 hours, or battery sits in the car with some car modules draining the battery when doors are open.

Approximate voltage under load vs state of charge in VW cars, see attachment.
I found no such data for Volvo, but you can read the State of Charge with ELM327.

[Agro]

Thanks guys. I think I need to invest in a battery tester to check the condition of the battery every few months.

This car has stop/start plus very low usage, just 27000klms, and in combination destroys batteries very quickly.

Already replaced 2 batteries and a third isn't far away.

[Clan]

Originally Posted by Agro

Anyone know what volts a fully charged Volvo battery in new condition should read on a 2013 V40 D4 5cyl? Mine settles at 12.65V which I think is a bit low, but not sure.

thats very good ,
The car has built in battery management and a several pages of very detailed Battery and charging system information and Data is available to download by the dealer . I would keep monitoring the voltage and watch for any drop . You are using the correct AGM volvo Stop/Start battery I assume .

[Agro]

Originally Posted by Clan

thats very good ,

Just checked the battery voltage again - now reading 12.31V. Shouldn't be losing so much so quickly.

Originally Posted by Clan

You are using the correct AGM volvo Stop/Start battery I assume .

I'm using Volvo AGM battery but will not be buying another. At $375 they are a rip off, they don't last (or haven't with me), and only come with 12 months warranty. Worse still, it's quite a laborious job to replace thanks to where they've positioned it.

.

[Clan]

Originally Posted by Agro

Just checked the battery voltage again - now reading 12.31V. Shouldn't be losing so much so quickly.




I'm using Volvo AGM battery but will not be buying another. At $375 they are a rip off, they don't last (or haven't with me), and only come with 12 months warranty. Worse still, it's quite a laborious job to replace thanks to where they've positioned it.

.

wow they are about less than half that price in UK volvo dealers

if it is working ok and starting the car see how it goes..

[Agro]

Originally Posted by Clan

wow they are about less than half that price in UK volvo dealers

if it is working ok and starting the car see how it goes..

Yeah, they love to charge down here; would be a little more palatable if one got the support and to warrant the extra $$.

Anyone know if I'll get a warning to replace the battery when the time comes?

[Whyman]

Did you lock the car between tests? because the car is only fully “asleep” once the car is locked.