10 replies to this topic

[LukeH]

Hi all,

I’m thinking of running my main battery-to-alternator power cable internally and I would also like to fit a battery cut-off (the big red key shaped thing). I’ll try and add a picture later to illustrate what I’m talking about.

My problem is that I have remote central locking which will obviously require power in order to operate. How could I bypass the battery cut-off to provide just enough power to the remote locking control box? I imagine I would need an inline-fuse but what rating?

Also, I have some 4 gauge power cable that I used to power an amp in a previous car. This is really big stuff and I was hoping to be able to use that but I guess this would depend on it’s power rating, what would I need to go direct from battery?

Can anyone offer any help?

Cheers,

Luke.

[dklawson]

Perhaps it would be possible to power only the components of the central locking system by connecting them to the contact BEFORE your battery disconnect switch. Remember that if you do this you'll also want to provide a before-switch power connection for any time clocks, and the memory circuit of a digital radio.

#4 AWG is rated for up to 100 Amps depending on its jacket insulation. I think you'll find that the Mini battery cable is either #4 or (less likely) #2.

[LukeH]

Perhaps it would be possible to power only the components of the central locking system by connecting them to the contact BEFORE your battery disconnect switch. Remember that if you do this you'll also want to provide a before-switch power connection for any time clocks, and the memory circuit of a digital radio.

#4 AWG is rated for up to 100 Amps depending on its jacket insulation. I think you'll find that the Mini battery cable is either #4 or (less likely) #2.

Thanks for the reply. I don't have any other dvices that would require constant power e.g. clocks, radio etc... the car is fairly stripped out apart from the remote central locking.

So am I correct in understanding what you have put above, that I should be ok to use the power cable left over from my old car? I'll have a look at the cable tonight to see if it has a rating on it.

Cheers,

Luke.

[Big_Adam]

Aye, just fit a fuse. Something rated high enough for the central locking but when anyone trys to start it *pop* so long little power. Keep the stereo settings too.

Edited by Big_Adam, 18 August 2008 - 03:14 PM.

[LukeH]

you need this

discarnect battery isolator switch

Dis-Car-Nect is a very simple, but very effective battery isolation switch, manufactured by RICHBROOK, which mounts directly to any car battery.

The brass battery lug on DisCarNet is very easily fitted to whether it is has a round or flat battery terminal (including Ford 'square' posts).

By simply removing the Discarnect knob, the car is immobilised and cannot be started. A small voltage supply protects the car alarm and any radio programming.

Any attempt to turn over the starter puts over 150amps through the battery which will blow the 16amp fuse (simply replace the fuse to rectify this - two spare fuses are included with the DisCarNect).

A casual glance at the battery shows no evidence of what the problem is. Since thieves don't like to waste time, they will usually go elsewhere.

hope this helps
KC

Thanks, that's one option that I will take a look at it looks like quite a neat solution.

[kez_19]

switchey

i think this is what you are looking at

michael

[LukeH]

switchey

i think this is what you are looking at

michael

Yeah that's the type of thing.

I was thinking of putting it somewhere inside the car perhaps near the rear seats or between the front seats.

[AzMaN]

i was going to put one of those key switches on the center post below my backseats, then just cover the wiring with a speaker board.

Edited by AzMaN, 24 September 2008 - 06:05 PM.

[coopersmate]

Hi there
sorry to hijack this but just followed kez_19 link and saw they sell battery cable.
I am doing exactly the same thing with red key switchy thing and by pass in line fuse as well as internal run of cable
but
i don't have spare cable. So which size cable do I need from this lot? cables

thanks

Lloyd

[stormintrooper]

after having a looksie at both i definelty prefer the discarnet one, simply because i would like to keep power running to my alarm and stereo etc

but
do you think id get away with puttin a big enuf fuse for the alarm as it flashes lights and indicators when its engaged etc

would the required fuse be big enuf to start the engine?

[AzMaN]

after having a looksie at both i definelty prefer the discarnet one, simply because i would like to keep power running to my alarm and stereo etc

but
do you think id get away with puttin a big enuf fuse for the alarm as it flashes lights and indicators when its engaged etc

would the required fuse be big enuf to start the engine?

about 150amps to start the engine i should think, so i use a 40amp fuse in my bypass system, works perfect to be honest.