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ARC99



Member Since: 19 Feb 2013
Location: North Yorkshire
Posts: 1831

United Kingdom 2008 Defender 110 Puma 2.4 USW Cairns Blue
Battery Change question.
I need to change the battery on the 110 know how to do it but have idea plus the owners manual if it goes wrong.

In the past I bought a gizmo that plus into a 240v supply and has a plug that fits into the cigar lighter socket, it put out a small 12v supply.

Now to avoid all the reprogramming if I plug the gizmo in, switched on of course, and set the ignition key to position 1 should I be able to remove the battery with out loosing all the codes etc.? Don't make old people mad.
We don't like being old in the first place,
so it doesn't take much to Censored us off.

Richard
Post #606179 2nd Mar 2017 8:30pm
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jst



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

2011 Defender 110 Puma 2.4 USW Stornoway Grey
will it not only be a battery code you loose?

but yes plug it in to a live 12v socket. Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop
Post #606196 2nd Mar 2017 8:47pm
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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
it'll only be the radio code you lose, takes a few seconds to re-enter it.

One problem you'll have is the cigar lighter is only live with the ignition on, and disconnecting the battery with the ABS and engine ECU's powered up probably isn't a good idea. There is also a risk with those memory saver things that if the battey positive cable touches the body while you're swapping the battery it'll blow the fuse for the cigar lighter anyway.

If you've got the radio code i wouldn't bother, just change the battery and re-enter it when you're done.
Post #606288 3rd Mar 2017 4:16am
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Alien



Member Since: 18 Jan 2015
Location: Bacchus Marsh
Posts: 230

Australia 
My hand books says to( or similar)...
Start by turning the ignition on
Turn the ignion compeatly off.
Within 17 seconds disconect the battery.

I assume this is to do with the alarm system so always do it.
The radio while a pain to enter the security code and possibly restore the stations is a safer bet than possible
damage to other systems.
The plug in radio savers where popular back when there were less electronics involved in vehicles. Cheers,
Kyle.
Post #606289 3rd Mar 2017 4:27am
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LR90XS2011



Member Since: 05 Apr 2011
Location: bickenhill
Posts: 3602

United Kingdom 2011 Defender 90 Puma 2.4 XS CSW Galway Green
the owners manual tells you haw to do it I did mine as it states and no issues with anything not even the radio DEFENDER 90 TDCI XS,

I hope everyone is well and your land rovers make you happy
Post #606293 3rd Mar 2017 6:25am
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ARC99



Member Since: 19 Feb 2013
Location: North Yorkshire
Posts: 1831

United Kingdom 2008 Defender 110 Puma 2.4 USW Cairns Blue
Well there goes my good idea, blown out of the water like a sitting duck. Will have to get someone to help as I have practiced with out disconnecting the battery the 17 second trip round the vehicle and failed and the radio code was stuck to the radio by S.H.M.B.O. so the radio will have to come out first.

I was under the impression that the alarm had to be reset along with the E.C.U. and radio when the battery had been disconnected. Don't make old people mad.
We don't like being old in the first place,
so it doesn't take much to Censored us off.

Richard
Post #606322 3rd Mar 2017 9:25am
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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
the 17 sec thing is just so your alarm doesn't go off when you disconnect the battery, but only if you have the battery back up sounder. If you don't wait the 17 sec, the alarm will just go off. But once you reconnect the new battery you can silence the alarm with your remote. If you don't have a battery back up sounder fitted it wont go off.

There's nothing to reset with the "ECU".

It's only the radio you need to enter the code for.
Post #606336 3rd Mar 2017 9:57am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16808

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Only the radio will need resetting.

You can always loosen the clamp bolt on the neg battery terminal before cycling the ignition, also you can reach the ignition key from the passenger side while standing by the battery compartment, so getting a lead off in the required time isn't difficult.

The only reason there is a time limit is to prevent the BBUS sounding. If you don't have a BBUS you can take as long as you like, as far as I know.

Aftermarket radios are a major PITA compared to the original, since they all seem to have psychedelic Corsa-friendly boy racer demo modes, weird colours, and 200+ pointless settings that need re-entering after a power down!
Post #606338 3rd Mar 2017 10:02am
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ARC99



Member Since: 19 Feb 2013
Location: North Yorkshire
Posts: 1831

United Kingdom 2008 Defender 110 Puma 2.4 USW Cairns Blue
Thank you for the replies and advice, it is an age thing now I'm getting my state pension my mind starts playing tricks. Don't make old people mad.
We don't like being old in the first place,
so it doesn't take much to Censored us off.

Richard
Post #606349 3rd Mar 2017 10:30am
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discomog



Member Since: 09 May 2015
Location: Notts/Lincs Border
Posts: 2494

United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Santorini Black
I recently disconnected the battery due to a fault on one of the horns (continually blowing at 03.00hrs and didn't have a torch to locate the fuse). Once it was daylight I pulled the horn fuse and reconnected the battery. Everything worked fine and didn't even have to reset the radio code. I wouldn't hesitate in following the procedure in the handbook by turning the ignition on and off and disconnecting within the time period. Defender 90XS SW
Mini Countryman Cooper S
Morgan Plus 8
Post #606372 3rd Mar 2017 11:35am
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JWL



Member Since: 26 Oct 2011
Location: Hereford
Posts: 3443

England 2002 Defender 110 Td5 SW Coniston Green
I know some people would frown upon this but, what is stopping you attaching jump leads to the clamps on the old battery and connecting in series the new battery posts. Undo the claps on the old battery and take it out of the way, place the new battery, complete with jump leads into place and by touching the jump lead ends put the clamps onto the new battery posts and take away the jump leads without breaking a continuous 12V supply.
Or even put a 12V supply to a permanent live via jump leads say to the starter motor or via the permanent live found in the grey caravan plug if fitted.
Post #606407 3rd Mar 2017 1:19pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16808

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
^^ I think you mean parallel not series, and I think the reason is probably a reluctance to set his Defender on fire, and or burn/blind himself with the arcing that will result when it all goes horrbly wrong!

Certainly not something I would try Shocked

Connecting a fused, low current supply to a permanent live would work, but it would need to be fused due to the risk of the +ve battery lead touching the vehicle body or chassis whilst the batteries are swapped.

Do not underestimate the destructive power of a very high current 12V DC supply. It will easily blow holes in bodywork, blow chuncks off battery posts, start fires, weld things togather, and cause life changing injuries. A dead short across the battery will produce a current of many hundreds of amperes.
Post #606414 3rd Mar 2017 1:41pm
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JWL



Member Since: 26 Oct 2011
Location: Hereford
Posts: 3443

England 2002 Defender 110 Td5 SW Coniston Green
I agree the fidling with battery leads and jump leads in the underseat battery compartment isn't the brightest of ideas but a slave battery on the starter via jump leads would be fairly possible with care, especially as the vehicles battery terminals would still be live and they're easy to knock against the compartment sides.
Yes I can attest to the destructiveness of letting 12V power leads touch the wrong parts! Just so people are aware, you can do some fairly passable arc welding with 12V, you only have to look on You Tube for some of the antics those rednecks do when attempting bush mechanics! Whistle
Post #606436 3rd Mar 2017 2:32pm
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AMBxx



Member Since: 24 Jul 2016
Location: York
Posts: 980

United Kingdom 2015 Defender 110 Puma 2.2 XS CSW Orkney Grey
blackwolf wrote:

Do not underestimate the destructive power of a very high current 12V DC supply. It will easily blow holes in bodywork, blow chuncks off battery posts, start fires, weld things togather, and cause life changing injuries. A dead short across the battery will produce a current of many hundreds of amperes.


I have a small piece missing from one end of a spanner that is testament to that - slipped when tightening one of the terminals! Radio code was fine though Whistle
Post #606440 3rd Mar 2017 2:56pm
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ARC99



Member Since: 19 Feb 2013
Location: North Yorkshire
Posts: 1831

United Kingdom 2008 Defender 110 Puma 2.4 USW Cairns Blue
Why do I bother?
So I decided to do it the Land rover way. Into the cubby box to retrieve the radio keys ( see comment about the radio code) which I had placed in there about three years ago. They have gone, S.H.M.B.O. asks what I'm looking for so I tell her "Oh right" and she walks off back into the house coming back ready to go out puts passenger seat back in. I ask her what she is doing "Erm I need to go out to buy some more bits of metal I through out thinking they were rubbish."
Shocked Big Cry Don't make old people mad.
We don't like being old in the first place,
so it doesn't take much to Censored us off.

Richard
Post #606450 3rd Mar 2017 3:49pm
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