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RRBlue
Member Since: 25 Dec 2013
Location: Cambridge
Posts: 50
  
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I have had a number of flat battery problems recently.
The problem generally occurs if we are in and out of the car or sitting in it watching cricket: no lights, fans or accessories switched on. It also happened the other day when I was in and out of the car checking the oil level. In all cases, the smart key had been left in the centre console.
The battery is not that old.
Usually, a period on the end of some jump cables with donor car running or charging on a heavy duty booster does the trick.
Any thoughts?
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 26th Jul 2021 12:16 pm |
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Oxford-boy
Member Since: 07 Sep 2015
Location: Oxford
Posts: 1114
 
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Swap the interior lights bulbs for LEDs. Powerful UK do a kit which is great that has a YouTube video on how to get each out (don't bother with Vanity Mirrors).
As you swap them over you'll be surprised how hot the OEM bulbs are, like little heaters each of them.
Will make quite a difference.
There is more you can do but that was enough for me.
 Jim
2014 Discovery 4 XXV SDV6 Causeway Grey
2016 Discovery 4 HSE Lux SDV6 Loire Blue - now gone
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| 26th Jul 2021 1:40 pm |
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RRBlue
Member Since: 25 Dec 2013
Location: Cambridge
Posts: 50
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Thank you will give it a go.
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| 27th Jul 2021 1:47 pm |
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Oxford-boy
Member Since: 07 Sep 2015
Location: Oxford
Posts: 1114
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You may also wish to try these battery monitors by CTEK.
https://www.halfords.com/motoring/battery-...30846.html
Google around as you'll find keener prices (if they are in stock). Easy to DIY fit and link to your phone via an App. Will show you the state of charge in your battery(s if you use on on the S/S too).
May help you understand if you are starting from a low charge point.
May well be your battery is on the way out.
Good luck sorting it. Jim
2014 Discovery 4 XXV SDV6 Causeway Grey
2016 Discovery 4 HSE Lux SDV6 Loire Blue - now gone
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| 27th Jul 2021 2:50 pm |
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barryp
Member Since: 24 Dec 2006
Location: Sydney
Posts: 138
  
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Just a thought, was the car battery monitor reset when you replaced the battery, you mentioned that it isn't that old.
Barry 2017 Range Rover Sport TDV6 L494 Fuji White
2011 Range Rover Sport SDV6 L320 Fuji White Loved but GONE
2010 TRAKKA Motorhome Fiat Ducato GONE (What a dud, don't buy one)
2006 Discovery 3 SE TDV6 Automatic Chawton White/Ebony. Loved but GONE
2006 BMW X5 diesel White/Charcoal, Bought new, gone after 12 years! Excellent vehicle.
Ex Member Range Rover Club NSW
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| 28th Jul 2021 9:44 pm |
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Pedros
Member Since: 25 Jun 2011
Location: Cumbria
Posts: 454
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I know you say the battery isn't that old, but that doesn't necessarily mean it isn't faulty. I'd be checking it out fairly high up on the list of things to do to solve that.
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| 28th Jul 2021 9:57 pm |
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L319
Member Since: 14 Dec 2013
Location: Herefordshire
Posts: 2083
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I wonder if leaving the key in the console means the car is not going to sleep properly & the ECU's are still consuming current. I know it will happen with a D3 if the key is left in the ignition even with it switched off.. Five hrs and mine was down to 7 volts.
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| 29th Jul 2021 8:20 pm |
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Errant
Member Since: 29 Oct 2020
Location: CA
Posts: 28
  
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I have wondered about this, too. My battery and alternator test fine, but I've had a flat battery when detailing the car with fob left inside, or when sleeping inside. I've switched my interiors to LED, and turn them off when I know I will be in/out of it often. ‘98 DI
OME N114 & N44, RTE RR4 & RR3, isolators, retainers
245/75/16 BFG AT/KO
’11 LR4 HSE Metropolis
265/65/18 BFG AT/KO2
TuffAnt Steelies
Tactical Sliders
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| 20th Sep 2021 6:47 pm |
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