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Battery Disconnection #726459
03/12/21 08:36 AM
03/12/21 08:36 AM
Joined: Feb 2021
Posts: 40
France, 66
Topline123 Offline OP
Just Getting Started
Topline123  Offline OP
Just Getting Started

Joined: Feb 2021
Posts: 40
France, 66
Good morning

I need to add a USB charging port to my car (2005 Plus Four). Can someone please tell me how long I can disconnect the battery for in order to do the work without upsetting the factory immobiliser? Thanks in advance.


2005 Plus 4
2020 Hyundai eKona
2020 Mitsubishi Outlander PHEV
Re: Battery Disconnection [Re: Topline123] #726462
03/12/21 08:56 AM
03/12/21 08:56 AM
Joined: Jun 2015
Posts: 976
North Somerset, UK
Deejay Offline
Talk Morgan Regular
Deejay  Offline
Talk Morgan Regular

Joined: Jun 2015
Posts: 976
North Somerset, UK
When I first changed my battery, the engine ran rather roughly for a few seconds as I guess the ecu had lost its memory, but it quickly recovered. I cannot think of why the immobiliser would be upset by a disconnection.
Incidentally, for USB ports, I simply purchased a double USB unit fitted with an extension lead and cigar lighter plug, from ebay. I mounted it virtually out of direct sight, onto the scuttle bar on the passenger side with a couple of cable ties and simply plugged it into the existing cigar lighter socket.


Doug

2011 +4 in Rich Maroon
1972 750 “ComDom” sprinter
1958 Triton 650
1992 Triumph Trophy 900
Re: Battery Disconnection [Re: Topline123] #726463
03/12/21 08:57 AM
03/12/21 08:57 AM
Joined: Oct 2012
Posts: 239
Wiltshire
R
RJW Offline
L - Learner Plates On
RJW  Offline
L - Learner Plates On
R

Joined: Oct 2012
Posts: 239
Wiltshire
I replaced the battery on my 2013 Plus 4 and decided to paint the support cradle at the same time. This meant there was no battery connected for a few days. No adverse affect as far as I can tell.

Re: Battery Disconnection [Re: Topline123] #726466
03/12/21 09:22 AM
03/12/21 09:22 AM
Joined: Feb 2016
Posts: 4,374
East Harling, Norfolk UK
RichardV6 Offline
Part of the Furniture
RichardV6  Offline
Part of the Furniture

Joined: Feb 2016
Posts: 4,374
East Harling, Norfolk UK
+1 for the adaptor.

[Linked Image]

This one even gives voltage readout as well as two 3.1 amp outlets.


Richard

2018 Roadster - Red/Magnolia - "Morton"
1966 Land Rover series 2a SWB
1960 Velocette Venom
Re: Battery Disconnection [Re: RichardV6] #726469
03/12/21 09:29 AM
03/12/21 09:29 AM
Joined: Feb 2021
Posts: 40
France, 66
Topline123 Offline OP
Just Getting Started
Topline123  Offline OP
Just Getting Started

Joined: Feb 2021
Posts: 40
France, 66
Thanks for the infos. I've decided to leave the cigarette lighter intact as it is useful to plug in a coolbox and use the permanent live feed for the maplight instead. I will connect a bracket to the tubular bar that is under the dashboard, above the transmission tunnel. When it's done and I haven't set light to the car ,I'll post a picture.


2005 Plus 4
2020 Hyundai eKona
2020 Mitsubishi Outlander PHEV
Re: Battery Disconnection [Re: Topline123] #726478
03/12/21 10:48 AM
03/12/21 10:48 AM
Joined: Jul 2007
Posts: 21,467
Suffolk
John V6 Offline
Brooklands Register contact
John V6  Offline
Brooklands Register contact
Member of the Inner Circle

Joined: Jul 2007
Posts: 21,467
Suffolk
I found some adapters don't give out enough umph to charge my phone. No idea why but I have one that works now.


JohnV6
2014 Brooklands Edition Roadster "Brookland's Belle" #5 of 50
Re: Battery Disconnection [Re: Topline123] #726487
03/12/21 12:19 PM
03/12/21 12:19 PM
Joined: Aug 2013
Posts: 3,329
Solihull
Spanner Juggler Offline
Talk Morgan Addict
Spanner Juggler  Offline
Talk Morgan Addict

Joined: Aug 2013
Posts: 3,329
Solihull
On the shop floor we used to plug in a battery charger to the cigar lighter, it was called a Code Saver to save loosing the radio code. Similar would work and if you have a battery conditioner that plugs into the fag socket it would work. Just be aware that the battery + cable will still be live even after it’s disconnected so isolate with a rag or similar. I have done it several times on Morgan’s when adding sat Nav charging leads for myself and pals cars.

BR
Colin


BR Colin
Who used to be a Spanner Juggler
Re: Battery Disconnection [Re: Topline123] #726489
03/12/21 12:30 PM
03/12/21 12:30 PM
Joined: Aug 2010
Posts: 3,972
Costock, South Nottinghamshire...
Paul F Offline
Talk Morgan Addict
Paul F  Offline
Talk Morgan Addict

Joined: Aug 2010
Posts: 3,972
Costock, South Nottinghamshire...
If you don’t have a radio, you can replace the blanking plate with a piece of plastic drilled for a twin USB socket. You can then buy a plug and flying leads that will plug into the radio wiring. That will give you an ignition enabled USB socket without modifying the car wiring. If that suits you, I will dig around and see if I can find the details of the plug and leads that I bought when I did mine. I also fitted a cigar lighter at the same time (also ignition switched) which I use for my Sat Nav.


Paul
Costock, UK
2014 4/4 Rolls Royce Garnet Red
Disco 4
Teddy - 17h1 Irish Draught cross
Re: Battery Disconnection [Re: Topline123] #726493
03/12/21 01:12 PM
03/12/21 01:12 PM
Joined: Jul 2007
Posts: 21,467
Suffolk
John V6 Offline
Brooklands Register contact
John V6  Offline
Brooklands Register contact
Member of the Inner Circle

Joined: Jul 2007
Posts: 21,467
Suffolk
I have a radio that has a USB aux socket. I use that to power my GPS Speedo. As Paul says it is only on with the ignition. I use an extension USB lead with several sockets so I also still have the use of a memory stick for music. I don't think I would trust this route for a high current device.


JohnV6
2014 Brooklands Edition Roadster "Brookland's Belle" #5 of 50
Re: Battery Disconnection [Re: John V6] #726521
03/12/21 05:31 PM
03/12/21 05:31 PM
Joined: Feb 2016
Posts: 4,374
East Harling, Norfolk UK
RichardV6 Offline
Part of the Furniture
RichardV6  Offline
Part of the Furniture

Joined: Feb 2016
Posts: 4,374
East Harling, Norfolk UK
Originally Posted by John V6
I found some adapters don't give out enough umph to charge my phone. No idea why but I have one that works now.

Differing current ratings John. The ratings I'm aware of are 2.1 and 3.1 amps which apply to car adaptor and mains socket variants to name but two. Often adaptors are offered with two USB sockets covering both current ratings as some delicate devices may suffer from too higher charge current.


Richard

2018 Roadster - Red/Magnolia - "Morton"
1966 Land Rover series 2a SWB
1960 Velocette Venom
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