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Dual Battery Solenoid connection
Posted: Mon Mar 10, 2014 7:52 am
by Mitsu Fan
Hi all.
I wish to fit a dual battery system, but intend to use old school technology. The battery and cables are alreay fitted and I now need to fit the solenoid.
The large terminals are easy: connect in line with the battery cable to the second battery. The smaller terminals (activation of coil) negative goes to earth but the positive? Can I connect direct to the battery (with in line fuse)or do I need to go scratching for a positive wire from the ignition switch?
Thanks
Re: Dual Battery Solenoid connection
Posted: Mon Mar 10, 2014 8:13 am
by 4ePikanini
best is to find a 12v source that is live with engine running but not when the engine cranks.
Re: Dual Battery Solenoid connection
Posted: Wed Mar 12, 2014 1:33 pm
by Mitsu Fan
Thanks 4ePikanini.
I dug out an old article which prefered the Natioanl Luna unit but the only magic in this is there is a delay timer relay which only kicks after about 30 seconds to pull the solenoid in. Any idea where to get one of these relays?
Re: Dual Battery Solenoid connection
Posted: Wed Mar 12, 2014 4:08 pm
by andrew.ashton
Mitsu Fan wrote:Thanks 4ePikanini.
I dug out an old article which prefered the Natioanl Luna unit but the only magic in this is there is a delay timer relay which only kicks after about 30 seconds to pull the solenoid in. Any idea where to get one of these relays?
Stocked at most 4x4 centres - Outdoor Warehouse typically has a rack full of National Luna components. Can also be sourced at Frontrunner fitment centres etc.
Re: Dual Battery Solenoid connection
Posted: Sun Mar 16, 2014 1:38 pm
by vanasp
Bought the Cole Hersee solenoid Part number 24059 (85Amp 12V) directly from the distributors Cariboo Distributors (
http://www.cariboodistributors.com) in Pretoria 012 660 2222. You have to pay cash as they don't normally deal with the public. I just arrived (it looked like a house) and they sold to me.They also sell the Brad Harris connectors. If I remember correctly I paid about 50% of the price asked by National Luner. I also connected the relay activation coil to my cigarette lighter positive to ensure that it cannot stay on when the car is turned off. See my article
https://www.pajeroclub.co.za/forum/view ... =27&t=4669
Hope this helps you.