96terrano
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- Jun 27, 2010
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so you can have 2 batteries with the option of isolating them. you can have your main battery for starting the vehicle and the second for accessories.
When you are not running the engine you can make it so they are both not connected. Thus taking all the power from the 2nd battery without the possibility of draining the main starter battery.
I am just fitting one at the moment, just waiting for a few more wiring bits to turn up.
The Relay you are looking at is basically to charge the caravan battery while in situ within the caravan, It can also used to power the fridge. Basically it is just a relay that disconnects what ever is connected to it, to stop it discharging back through the vehicle electrics when you try to start the car, as without it, you would burn out wires on your car and caravan, or at the very least blow the fuse every time you started the engine.
The down side is, it is not very high current, and works on the principle of the length of run, along with all the connectors en route limiting the current.
To do a slit charger with the battery in the car, especially in the engine bay, you need something more substantial, like this....
http://www.ebay.co.uk/sch/i.html?_nkw=durite+split+140a&_sacat=0&_odkw=durite+split&_osacat=0
Plus fuses, and heavy cable.
And all the crud build up on the plug n socket, makes a great resistor don't it Rick.
:naughtyI regularly spray my plug and socket with silicon spray
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