Heating blowing cold when battery exhausted

[Richolf]

I’ve not done many journeys exceeding Battery range in the cold but have noticed a few times that when Battery is exhausted the fans blow cold air into the cabin.  I am assuming this is because the engine is cold.  I’ve not driven far after but assume once engine heats up then warm air is circulated again.

has anyone else noticed this ?  I would have expected the heating to stop blowing until the engine was warmer 

[Ken R]

Can't say that I have had that issue although I tend to use the heated seats and so these continue when the ICE kicks in.

[Harrier Man]

I haven't noticed this either and I'm a bit surprised as the Battery isn't actually exhausted, it still has around 30% charge in it even when it is 'empty' enough for the ICE to kick in. Even a good Battery won't heat the cabin to the same (higher) temperatures as the engine as the HVAC system isn't as efficient (at heating); that's why the ICE will cut in on very cold days or if you use Hi mode to clear the screen and warm the car even with a fully charged Battery.