S40 (New) Electrics : - 'Low Battery' warning

Dingle232 · Aug 29th, 2012, 15:11

I got the message 'Low Battery' displayed on my dash this morning when I sat with the ignition lights on but no engine running - this was after the car had been for it's usual 10 mile commute to work.

Sorry of this is a really dumb question but I assume that means a problem with the car's main battery? I have had no alternator or warning light on so any ideas what the fault may be?

Thanks and again, sorry if it's an obvious question - I am hoping it's really not the car's main battery.

VenomS40 · Aug 29th, 2012, 17:49

I think if its the key fob then it say 'key battery low'

Not sure on just 'battery low' but I'd imagine so....?

MikeV50SELUX · Aug 30th, 2012, 22:59

Hi, yes 'Low Battery' means the main car battery. I had this come on more and more frequently when using radio with out engine running etc. A few months later the battery died completely.

You will find when it displays the warning it will limit the stereo volume and also turn down the fan speed if its running in a bid to save power.

Manual says to start the car to charge the battery.

Aug 29th, 2012, 15:11	#1
Dingle232 Junior Member Last Online: May 24th, 2022 14:16 Join Date: Feb 2012 Location: St Helens	'Low Battery' warning I got the message 'Low Battery' displayed on my dash this morning when I sat with the ignition lights on but no engine running - this was after the car had been for it's usual 10 mile commute to work. Sorry of this is a really dumb question but I assume that means a problem with the car's main battery? I have had no alternator or warning light on so any ideas what the fault may be? Thanks and again, sorry if it's an obvious question - I am hoping it's really not the car's main battery.

Aug 29th, 2012, 17:49	#2
VenomS40 08 Volvo S40 SE Sport R-D Last Online: May 6th, 2016 23:08 Join Date: Jan 2011 Location: Gloucester	I think if its the key fob then it say 'key battery low' Not sure on just 'battery low' but I'd imagine so....? __________________ Volvo S40 SE Sport R-Design + Winter Pack

Aug 30th, 2012, 22:59	#3
MikeV50SELUX Junior Member Last Online: Jun 25th, 2014 03:37 Join Date: Nov 2011 Location: Norwich	Hi, yes 'Low Battery' means the main car battery. I had this come on more and more frequently when using radio with out engine running etc. A few months later the battery died completely. You will find when it displays the warning it will limit the stereo volume and also turn down the fan speed if its running in a bid to save power. Manual says to start the car to charge the battery.

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