After I have stopped the car and shut the doors I can hear a whining noise coming from the car it lasts quite a while and don't know what it is, if this is still drawing power I'm not surprised the battery voltage drops

If its coming from under the car near the back wheels that's the parking brake....mine does that. If its coming from the front of the car under the bonnet thats the throttle body which is normal. MY13 HSE LUX Aintree Green
MY57 SE Stornoway Grey. Gone
Nissan X Trail
Discovery V8 LPG
Series II Land Rover

It's from the front of the car, why does it make that noise for so long, long another subject I'm also getting a message saying battery low and that the system will shut down in 1 minuite, I replaced the battery Aug 2018 could that be the problem

I think it’s the throttle body shutting down ? Perfectly normal and yes it will be the battery needs charging or replacing.

That message always comes up if you just have the Ignition on and the engine not running after 5 minutes or so....it is a pain if you just want to listen to the radio. its to save battery power but, its normal. For the winding sound its normally the throttle body readjusting itself after you've shut the engine off but that normally only last for a few seconds. MY13 HSE LUX Aintree Green
MY57 SE Stornoway Grey. Gone
Nissan X Trail
Discovery V8 LPG
Series II Land Rover

The noise usually lasts at least 5 or ten minutes after I switch the engine off and the battery warning come on every time I start up the car b4 leaving

There is the same noise from mine, an electrical component of some sort before the car goes to sleep. Nothing to worry about. Landrover - turning owners into mechanics since 1948

2014 Orkney grey Freelander SD4 GS.
2004 Zambezi silver Discovery 2 Td5 (Gone)
1963 Surf blue Morris Mini Minor Super de Luxe (my little toy)

I'm just wondering if whatever is that makes the noise causes a drain on the battery and after my battery being about 3 years old it's causing and message saying battery low system will shutdown

I just called landrover and they said that the battery part code is lro 38218 are there comparable batteries that would suit a 2014 sd4 freelander 2 that battery is a 80ah just wondering it I could fit a heavy duty battery is that would solve the low battery alarm when starting the car

I recently fitted a Yuasa YBX9115 from Tanya batteries to my 2014 Manual TD4 with stop/start - other often used option is a Varta F21 I believe.

Personally I went for the Yuasa as I have found them completely reliable over many years (in my Hondas) but from what I read the Varta should be just as good. The battery I replaced was a Varta with a JLR/Jag sticker on - I believe original LR fitted when my TD4 was born in 2014. This had started on occasion to display the batt low warning which I have not seen since the change to a new one.

If you don't have stop/start then you will need the non AGM version (not sure if Auto's have stop/start?) 2014 Freelander 2 TD4 Manual Dynamic
1956/7 88" Series One Land Rover
1956/7 88" Series One Land Rover - undergoing restoration