Jump starting using dual battery question

What sort of isolator do you have on the vehicle

Richard, Jump-starting through your Redarc isolator can be dodgy unless it has been installed with sufficiently heavy cables and you know what you are doing. I know the technique is offered in the Redarc instructions and that others do it, but......?

I DO know what I am doing and my cables ARE starter sized, but I still would rather not put starter current through my Redarc solenoid.

Seems to me that jump-starting should be a rare event anyway and it is hardly much trouble to simply use jump-cables from battery to battery as you would normally do. If you want to be extra careful, disconnect the existing negative terminal from the auxiliary battery before connecting the jump-cables, but the battery can remain in the vehicle.

Having the Redarc set up for jump-starting does NOT dispense with the need to carry jump-leads. You never know when you may need to jump-start from or to another vehicle.

Hi,
Thanks all for great info.

I noticed that in my set up there are blue wires coming fcrom the isolator but I have no switch inside to turn it on - is it automatic?

Also thanks Alan re jumper cable - that is the direction I was planning as was not sure about the other stuff which would be great if it is there.

Richard

If you have jumper leads then just connect the two battery\s together via the positive terminals wait a minute for the fuel pump if electric to preassurize the fuel line glow the vehicle up and away you go then as soon as the engine idles disconnect the aux batt first then the main from the jumperlead.
The negative terminals of both batteries are usually both grounded to the chasis somewhere.

My starter battery failed the other night so I simply used jumper leads from the dual battery to the starter battery. It kicked over no problems.

Next day when I had a new starter battery installed, I had the auto election check that it had not caused any problems and fortunately every thing was OK.

Thanks all for the responses.

I now have a few options.

Richard