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2010Blackdefender90



Member Since: 07 Jan 2018
Location: London
Posts: 562

United Kingdom 2011 Defender 90 Puma 2.4 SVX Station Wagon Santorini Black
Dead battery
This am, pressed the open button on the key fob, nothing, looked into the cab, red alarm light out.

Got in using the key. Everything dead, lights won’t go on, clocked stopped. Volt meter 0.00, so, dead.

Think I know what drained it, hooked the rear view mirror monitor / dashcam to a 12v direct feed to the battery.... doh! battery less than a year old.

Stuck the ctek charger on it.... strange things happening, DRL’s are flashing and so is the lheadlight dash light when I tried it, can hear a clicking in sync with the flights flashing while charging, assuming that this is the alarm signal but with zero power in the battery to fire it?

Going to leave it overnight to trickle charge and see what happens.

Few questions, when the battery comes up to charge, if is does, will the alarm sound? If so, don’t want to leave it over night because it’s bound to go off at 3am and wake everyone up...

Thoughts anyone? Dead drained battery. Car locked fine Monday night, all flashed as required.
Post #742979 29th Nov 2018 4:04pm
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Cupboard



Member Since: 21 Mar 2014
Location: Suffolk
Posts: 2971

United Kingdom 2011 Defender 110 Puma 2.4 HT Corris Grey
Most DRLs are controlled with a voltage sensitive controller so they're detecting the battery charging and think that the engine is running. That's to be expected.

Just to be sure that the sidelights aren't on too?
Post #742980 29th Nov 2018 4:09pm
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2010Blackdefender90



Member Since: 07 Jan 2018
Location: London
Posts: 562

United Kingdom 2011 Defender 90 Puma 2.4 SVX Station Wagon Santorini Black
Thanks, think it will take overnight to get a charge into the battery, if it won’t take a charge, then a new battery will be next Thumbs Up
Post #742981 29th Nov 2018 4:14pm
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6260

England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
I assume it's the original battery?

just changed mine to a silver Yasa (or something like that from Halfords).
seem alright but not started the engine since so can't be sure - looks nice though Rolling with laughter
Post #742982 29th Nov 2018 4:21pm
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2010Blackdefender90



Member Since: 07 Jan 2018
Location: London
Posts: 562

United Kingdom 2011 Defender 90 Puma 2.4 SVX Station Wagon Santorini Black
Nope, I changed the original last year to the same as you have, as that was dead, after 6 years.
Post #742985 29th Nov 2018 4:29pm
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rallysteve



Member Since: 10 Feb 2014
Location: South Yorks
Posts: 2194

United Kingdom 2002 Defender 110 Td5 DCPU Keswick Green
The Ctek might not be able to charge a battery from totally dead. Does it have a boost mode or anything?

You might find you are better off jump starting the vehicle first to get a bit of charge into the battery before charging with the Ctek.

Steve 02' 110 TD5 Double Cab Rebuild Thread
84' 90 3.9 V8 Caged Pickup Build Thread


Mobile Diesel Heater Build Thread
Post #742987 29th Nov 2018 4:33pm
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2010Blackdefender90



Member Since: 07 Jan 2018
Location: London
Posts: 562

United Kingdom 2011 Defender 90 Puma 2.4 SVX Station Wagon Santorini Black
Ctek has a boost mode... got that on. any ideas why the alarm hasn’t sounded as it’s gone dead.... curious how that works. Now I’ve opened it with the key, when it comes back to a decent charge is the system, won’t the alarm sound, as the doors have been opened, but the system would not know or have been reset.
Post #742995 29th Nov 2018 5:21pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 7664

2011 Defender 110 Puma 2.4 USW Stornoway Grey
Have you disconnected camera live feed too? Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop
Post #743020 29th Nov 2018 7:56pm
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OJ



Member Since: 23 Nov 2018
Location: North of Edinburgh
Posts: 120

Scotland 2015 Defender 90 Puma 2.2 XS CSW Corris Grey
2010Blackdefender90 wrote:
Ctek has a boost mode... got that on. any ideas why the alarm hasn’t sounded as it’s gone dead.... curious how that works. Now I’ve opened it with the key, when it comes back to a decent charge is the system, won’t the alarm sound, as the doors have been opened, but the system would not know or have been reset.


If you opened it with the key fob it will most likely have reset the alarm, if the battery has drained completely i would think everything will have reverted to stored fail safe settings
Thumbs Up
Post #743027 29th Nov 2018 8:08pm
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2010Blackdefender90



Member Since: 07 Jan 2018
Location: London
Posts: 562

United Kingdom 2011 Defender 90 Puma 2.4 SVX Station Wagon Santorini Black
jst wrote:
Have you disconnected camera live feed too?


Yep Thumbs Up
Post #743052 29th Nov 2018 9:20pm
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2010Blackdefender90



Member Since: 07 Jan 2018
Location: London
Posts: 562

United Kingdom 2011 Defender 90 Puma 2.4 SVX Station Wagon Santorini Black
OJ wrote:
2010Blackdefender90 wrote:
Ctek has a boost mode... got that on. any ideas why the alarm hasn’t sounded as it’s gone dead.... curious how that works. Now I’ve opened it with the key, when it comes back to a decent charge is the system, won’t the alarm sound, as the doors have been opened, but the system would not know or have been reset.


If you opened it with the key fob it will most likely have reset the alarm, if the battery has drained completely i would think everything will have reverted to stored fail safe settings
Thumbs Up


Thumbs Up

CTEK won’t put any charge into the battery, going to try and jump it tomorrow, failing that, new battery.
Post #743053 29th Nov 2018 9:21pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 7664

2011 Defender 110 Puma 2.4 USW Stornoway Grey
get an airflow battery conditioner on the old one if it comes out. that will bring it back to life. in my experience, despite being shot down here before they are far better than any CTek i have used. i currently have 3 not working CTeks and run 5 of these Airflows, the oldest few must be 10yrs+ and still going strong. https://www.airflow-uk.co.uk/product/battery-conditioner/ Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop
Post #743057 29th Nov 2018 9:24pm
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2010Blackdefender90



Member Since: 07 Jan 2018
Location: London
Posts: 562

United Kingdom 2011 Defender 90 Puma 2.4 SVX Station Wagon Santorini Black
Thumbs Up
Post #743058 29th Nov 2018 9:25pm
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OJ



Member Since: 23 Nov 2018
Location: North of Edinburgh
Posts: 120

Scotland 2015 Defender 90 Puma 2.2 XS CSW Corris Grey
jst wrote:
get an airflow battery conditioner on the old one if it comes out. that will bring it back to life. in my experience, despite being shot down here before they are far better than any CTek i have used. i currently have 3 not working CTeks and run 5 of these Airflows, the oldest few must be 10yrs+ and still going strong. https://www.airflow-uk.co.uk/product/battery-conditioner/



Good tip James and at a much lower cost than the CTEK Bow down
Post #743131 30th Nov 2018 11:15am
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kmac



Member Since: 07 Oct 2009
Location: Middlesex
Posts: 1294

United Kingdom 2009 Defender 110 Puma 2.4 USW Santorini Black
2010Blackdefender90 wrote:
Ctek has a boost mode... got that on. any ideas why the alarm hasn’t sounded as it’s gone dead.... curious how that works


Have you got a battery back up alarm sounder?
If yes, should have gone off unless the alarm sounder battery is also dead
Post #743135 30th Nov 2018 11:20am
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