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Fishmaster



Member Since: 08 Mar 2014
Location: Yorkshire
Posts: 7

United Kingdom 
Alarm on start up
Can anyone tell me why the alarm briefly sounds on startup. Turn key to run until heater plug light goes out, move key to start and get two or three blasts if the alarm. Once engine has been run a while and alls up to temp it doesn't do it.

Any ideas what's up?
Post #686125 12th Feb 2018 7:02pm
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Sockpuppet



Member Since: 17 Sep 2011
Location: Leicester
Posts: 479

United Kingdom 
Battery on way out, the crank is taking the volts down too low so the alarm thinks the battery has been disconnected. After a run the battery is nicely juiced so either you have a drain on the battery or it's not holding charge.
Post #686128 12th Feb 2018 7:07pm
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DSC-off



Member Since: 16 Oct 2014
Location: North East
Posts: 1402

United Kingdom 2015 Defender 110 Puma 2.2 XS CSW Aintree Green
Hi, the battery is low and needs charging.
Mine does it with lots of short runs in the winter, with lights, heater and wipers on most of the time.
Post #686129 12th Feb 2018 7:08pm
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Fishmaster



Member Since: 08 Mar 2014
Location: Yorkshire
Posts: 7

United Kingdom 
Thanks. Off out for a long run to see what happens
Post #686361 13th Feb 2018 4:30pm
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Naks



Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2638

South Africa 2010 Defender 90 Puma 2.4 SW Alpine White
Long run won't save your battery, what you need is to hook it up to a Ctek (or similar) charger for a week or so.

Since I got retrenched in Oct and only drive my Puma every 4th-5th day, it's permanently hooked up to the Ctek Thumbs Up --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ
Post #686376 13th Feb 2018 5:21pm
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Orchard



Member Since: 07 May 2015
Location: Usually walking the dog
Posts: 258

+1 for CTEK or equiv, battery always in top condition. 2 second connect/disconncet with a plug or fly lead by the passenger seat 2015 90 XS SW Bowler
1998 TD5 CSW
Post #686384 13th Feb 2018 6:15pm
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BenB8man



Member Since: 22 Mar 2017
Location: Norfolk
Posts: 429

United Kingdom 2010 Defender 110 Puma 2.4 DCPU Stornoway Grey
Are the CTEKs supposed to much better than the Optimate?
Post #686409 13th Feb 2018 7:32pm
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Zim



Member Since: 25 Jul 2013
Location: Small Village, south side of Leicester
Posts: 86

United Kingdom 2007 Defender 90 Puma 2.4 XS CSW Stornoway Grey
I can't answer your question regarding CTEK vs Optimate, but I can say that I have been using a CTEK for the best part of 18 months.

I went from driving my Defender daily to now only using it circa once every 2/3 weeks - my battery was initially on its way out and the CTEK has not only resurrected it but keeps it in top top shape.

I also have a CTEK on my 66 F100 which is used even less as its indoors all winter and only used in summer. Get a CTEK and get the connector (which Orchard mentioned) which you can wire up to your battery direct - which has a plug that you just need to plug into the CTEK cable. It makes using a charger / conditioner much easier. 2007 Defender 90 XS
2022 Defender D300 HSE X-Dynamic
Post #686575 14th Feb 2018 1:35pm
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ParabolicSwivel



Member Since: 13 Nov 2013
Location: Hertfordshire
Posts: 42

I had the same issue. My 110 is only used once or twice a week at most.

I found I had to use maintenance mode every time to prevent the annoying/embarrasssing siren when I started.

Particularly annoying as the battery was otherwise showing no signs of age (it was original, 5yrs old, 20k-ish miles, good strong cranking, engine starting instantly...).

I tried keeping it topped up with a charger but it got to be a bit of a faff as it lives on the drive. In the end I replaced the battery with a 100Ah Bosch S5 and so far this winter it’s not given a single blip on the alarm despite sometimes over a week of frosty inactivity between uses.
Post #687002 16th Feb 2018 4:34pm
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nitram17



Member Since: 08 Jun 2014
Location: newcastle
Posts: 2261

Shhh...I have a skytag tracker on mine and I only use it on weekends so if I don't put it on the ctek at least for 24 hours every week it will be flat within 10 days......I don't leave it on permanently as I dont like giving potential thieves access to a 240 v cable and as its on the drive I don't. Want some kid fiddling with the cable and getting a shock!
Post #687007 16th Feb 2018 4:46pm
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zsd-puma



Member Since: 09 Aug 2016
Location: Kent
Posts: 2720

United Kingdom 2010 Defender 110 Puma 2.4 USW Santorini Black
Ive fitted an AA Solar panel in my back window, I think it was about £25 keeps the battery topped up nicely.
Post #687034 16th Feb 2018 6:34pm
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Supacat



Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018

United Kingdom 2013 Defender 110 Puma 2.2 XS DCPU Keswick Green
BenB8man wrote:
Are the CTEKs supposed to much better than the Optimate?


If cost is an issue then the Aldi/Lidl ones at £13.99 seem pretty good:


Click image to enlarge

Electronically controlled, fully automatic charging with LED indicator
With reverse polarity, short circuit and overload protection
4 variable charging rates, max. (A): 3.8
Operating voltage: 220-240V ~ 50/60Hz
Cable length (m): 1.95
3 year manufacturer’s warranty
Post #687162 17th Feb 2018 10:52am
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Whitcliffian



Member Since: 15 Nov 2017
Location: Yorkshire
Posts: 33

England 
I have read this thread with interest. What happened with Mr Fishmaster’s Defender also happened for me so based on the advice given I purchased a CTEK & & have used it to top the battery up. It appeared to be successful however today when I was out, when I came to restart the vehicle a found that the alarm light was staying on. I showed it to the people who service the vehicle & they are going to look into it/find out more but I am mentioning it here to see whether anybody else has had a similar experience. I actually do not know whether it is connected to recharging the battery or whether that is just a coincidence. I am stumped for now though so any comments/anecdotes concerning similar experiences will be interesting for me.
Post #687877 20th Feb 2018 6:33pm
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Sockpuppet



Member Since: 17 Sep 2011
Location: Leicester
Posts: 479

United Kingdom 
Alarm light staying on means the battery in keyfob needs changing as it's getting low.
Post #687949 20th Feb 2018 11:42pm
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Whitcliffian



Member Since: 15 Nov 2017
Location: Yorkshire
Posts: 33

England 
Hi Sockpuppet. Thanks for your reply. The people who service the vehicle did change the key fob battery but thereafter the problem persisted so that is why I am stumped & why they are going to look into it further. It does not seem to be affecting anything else. The alarm system works ok because we tested it.
Post #687977 21st Feb 2018 9:59am
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