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Boxer



Member Since: 26 Dec 2009
Location: S Wales
Posts: 354

Wales 2007 Freelander 2 TD4 GS Manual Zermatt Silver
Key fob batteries and pairing

As you guys now I recently purchased an 07 GS.
So i may be the first with this one as the previous owner dosent appear to have been rotating the key fobs as stated in the manual Shocked , and today i have been using it to try to charge it but to no avail. Big Cry

So,
1 Can i get a new battery for the fob ? Question
2 If I can, will it require pairing ? Question

Cheers.


Last edited by Boxer on 2nd Jan 2010 8:08 pm. Edited 1 time in total

Post #53501 2nd Jan 2010 3:47 pm
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npinks



Member Since: 28 Jun 2007
Location: Ls25
Posts: 20090

United Kingdom 

Sealed units with non servicable batteries

if in warranty get the dealer to order a new one as they ain't cheap Former Mod/Member, with the most post & Chicken George Arch nemesis

Post #53561 2nd Jan 2010 6:43 pm
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AndyT



Member Since: 28 Dec 2008
Location: West Yorkshire
Posts: 447

United Kingdom 2007 Freelander 2 TD4 SE Manual Sumatra Black

This is an interesting subject. None of our fobs will last for ever. The battery has a finite life and as time goes by more of us will begin to see fobs fail. There's no reason to dispose of the whole fob when the battery fails. If we can get into them without destroying the case it will be possible to replace the battery - it is highly unlikely to be a battery unique to Landrover.
As for programming, the codes will be stored in memory - probably EEPROM onboard a microcontroller. This is likely to be non-volatile (retained even if battery is flat). If it's volatile then that would need reprogramming. If we can work that out without the dealer then we've got it covered, but they may have us by the short-n-curlies there??

If you get nowhere with this we can try split it open and replace the cell.

Post #53569 2nd Jan 2010 7:07 pm
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npinks



Member Since: 28 Jun 2007
Location: Ls25
Posts: 20090

United Kingdom 

I'm sure I read it's a capasitor not a battery in them Confused Former Mod/Member, with the most post & Chicken George Arch nemesis

Post #53572 2nd Jan 2010 7:13 pm
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Boxer



Member Since: 26 Dec 2009
Location: S Wales
Posts: 354

Wales 2007 Freelander 2 TD4 GS Manual Zermatt Silver

If its Capacitor it should be good for life.
As far as I know they have no set life cycle.

I have carried both keys with me today, and opened the car and closed it with my original one, and drove with the spare to try to charge it. (30 minutes).

It did open the car once but not after the charge time.

there is a body on ebay today, but with no internals,
http://cgi.ebay.co.uk/LAND-ROVER-FREELANDE...439c24d7d3

Forgot to mention that I work in automotive and we work directly with Land Rover.
I speak with Land Rover chasis engineering on a weekly basis including Body control engineering.
I'll see if I can get some answers from them.

In the meantime i'll try some more charging time.


Last edited by Boxer on 2nd Jan 2010 8:39 pm. Edited 1 time in total

Post #53574 2nd Jan 2010 8:06 pm
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mcphersonstrut



Member Since: 21 Jul 2009
Location: In the land of 2 wheel drive and 60mpg
Posts: 2164

England 2008 Freelander 2 TD4 HSE Auto Stornoway Grey

Credit to Boxer for the gentle reminder to us all Bow down
Really hope you can get your fob to charge/get fixed Thumbs Up

Post #53577 2nd Jan 2010 8:33 pm
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Northsea Medic



Member Since: 16 Aug 2008
Location: East
Posts: 108

United Kingdom 2008 Freelander 2 TD4 XS Manual Stornoway Grey

Do you have 'key insurance'? you often get it lumped into a bank account or car insurance policy. If you have and you 'lost' your key they would provide you with a new set...

Post #53598 2nd Jan 2010 9:37 pm
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Boxer



Member Since: 26 Dec 2009
Location: S Wales
Posts: 354

Wales 2007 Freelander 2 TD4 GS Manual Zermatt Silver

Northsea Medic wrote:
Do you have 'key insurance'? you often get it lumped into a bank account or car insurance policy. If you have and you 'lost' your key they would provide you with a new set...


Now thats a good one.
I may well do. I'll check.

Post #53600 2nd Jan 2010 10:07 pm
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AndyT



Member Since: 28 Dec 2008
Location: West Yorkshire
Posts: 447

United Kingdom 2007 Freelander 2 TD4 SE Manual Sumatra Black

npinks wrote:
I'm sure I read it's a capasitor not a battery in them Confused


It's possible to do it with a capacitor but the power requirements of an RF transmitter would normally mean that a capacitor store supply would be unsuitable. For one thing, the discharge curve is nearer linear meaning you'd soon run out of charge after a few presses without docking. A battery (Li-Ion, NiMH, LiPolymer) has a near flat discharge curve, dropping off rapidly when near depletion.

Do you have a link to any info on the internals? I'd be very interested to see inside but not so interested as to attack my own with tools!

Post #53625 3rd Jan 2010 10:18 am
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lar



Member Since: 29 Nov 2009
Location: Yaroslavl
Posts: 251

Russia 2008 Freelander 2 TD4 SE Auto Stornoway Grey

There is an akkumulator there. It are charging in a worktime. 
Freelander II 2,2 TD SE Stornoway Grey

Sorry for my wry English. I began to study it recently.
I'll be thankful for your corrections of my mistakes

Post #53629 3rd Jan 2010 10:31 am
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The Laird



Member Since: 08 Feb 2009
Location: Gargano
Posts: 46

Italy 2009 Freelander 2 TD4 HSE Auto Lago Grey

lar wrote:
There is an akkumulator there. It are charging in a worktime.


Hi lar

Your English is good and accumulator is defined as ...

accumulator noun 1 elec engineering a storage battery that can be recharged by passing a current through it from an external direct current supply.

The best translation I can give you is ...

The battery is recharged when the engine is running. 09 HSE Auto Lago Grey/Almond Napoli. Privacy glass.

Post #53732 3rd Jan 2010 10:58 pm
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EXPENCELANDER



Member Since: 17 Jan 2010
Location: Cheshire Plains around Cheadle
Posts: 152

England 2007 Freelander 2 TD4 HSE Auto Stornoway Grey

How long does it take to re-charge, I have a spare that will only just turn off the alarm but as I only do short journeys I dont think that I can get it fully charged.

Also is there a charger that allows one to charge the remote on main electricity?

With the unit being totally enclosed how does the in car charge take effect?

Post #82131 28th Nov 2010 6:47 pm
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chicken george



Member Since: 05 Dec 2007
Location: N. Yorks
Posts: 13291

United Kingdom 2008 Freelander 2 TD4 XS Manual Santorini Black

by capacitance I guess same as an electric tooth brush. a coil in the fob and a coil in the holder At work
At home

"I can't always believe facts I read on the web" - Charles Dickens

winner by default of the tractor vs caravan race

Post #82162 28th Nov 2010 9:54 pm
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Captain Worm



Member Since: 12 Sep 2010
Location: Solihull
Posts: 969

United Kingdom 2007 Freelander 2 TD4 SE Auto Narvik Black

Inductive charging.. Wink I've heard you can use an inductive charge mat to charge your car keys!! Works the same as the BMW key...

I've also heard (from the dealer so I take it eith a pinch of salt) that the key has a 15yr life Shocked Freelander 2 TD4 Auto, SE, Narvik Black, Alpaca full leather, Rear Headrest Entertainment System, 6 CD, 18 HSE Wheels, Privicy tints

Post #82169 28th Nov 2010 10:38 pm
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Captain Worm



Member Since: 12 Sep 2010
Location: Solihull
Posts: 969

United Kingdom 2007 Freelander 2 TD4 SE Auto Narvik Black

Oh and anyones tempted to buy a spare key of tatbay... I''ve heard that the key can only be programmed once... so if you find one advertised as needing 'reprogramming; or if its been used on another car, leave it as you cant reprogram them Whistle Freelander 2 TD4 Auto, SE, Narvik Black, Alpaca full leather, Rear Headrest Entertainment System, 6 CD, 18 HSE Wheels, Privicy tints

Post #82170 28th Nov 2010 10:40 pm
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