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Diana LAING

Battery auto isolator vs. Solenoid

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I have an 89 Toyota Warrior - new to us. We have been trying to get all the systems connected. When we bought it there was no coach battery. It has an auto-isolator with a plug in charger attached. A solenoid on the side wall has only 2 wires going to it. A wire to where the house battery is stored and the second was to the Bat 2 position of the isolator Both 10 ga.. My questions are: 1 do I just hook up the coach as is? Wire seems light. The solenoid terminal is like a junction point? 2: Replace the solenoid - but what do I hook to it? 

 

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A picture is worth  thousands words and several are worth a million, Got pics please.

 

 

 

 

 

 

 

 

 

 

 

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yah, pics are good.   I can tell you my 93 is wired with a low draw continuous duty solenoid.  The solenoid is activated when the ignition switch is "on" - the wire on side of the solenoid is wired into the windshield wiper circuit.   The hot wire from the engine battery + terminal goes to the solenoid and then on to the + terminal of the coach battery.  It only needs a small wire as it only charges the coach battery slowly. You will probably find a circuit breaker before the solenoid and before the house battery.

 

Your coach battery should also have a smaller wire coming from the power convertor to the + terminal.   On my  toy, the battery is installed with the + terminal on the side closest to the access door.  I can daisy chain 2 jumper cables and I could use the coach battery to boost the engine battery or drain the engine battery to further power  the coach.

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Here is the pic on my 1990 Itasca (similar to yours). I had a temporary aligator clip to manual charge the cab battery when plugged in

20170704_193900.jpg

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Hello All Well did you fix or resolve the problem? I sure would like to know the outcome. Thanks

It seems this happens a lot...a question is posted and a few chime in then nothing... Let's finish what we start...Okay Y'all ! Otherwise what's the point ! 

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I have ctek d250s dual battery charger and it works very well for me. It's a five step charger, voltage sensitive relay, mppt solar charger. I wire a 2 awg welding cable from the truck battery to the cteck.

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