jcwcooper Posted May 22, 2008 Share Posted May 22, 2008 Is there anyway of telling if its working? Just fitted mine pritty sure its wired right just wanted to check really. Thanks Dave. Quote Link to comment Share on other sites More sharing options...
kiall Posted May 22, 2008 Share Posted May 22, 2008 check if the batterys are charging Quote Link to comment Share on other sites More sharing options...
LandyManLuke Posted May 22, 2008 Share Posted May 22, 2008 stick a voltmeter across the two +ve terminals of the batteries, set to measure dc voltage. When the relay is closed, the values will be near identical, when the relay's open, the engine battery will be sitting at a higher voltage than the aux battery. Quote Link to comment Share on other sites More sharing options...
jcwcooper Posted May 23, 2008 Author Share Posted May 23, 2008 Good discription there.....one question, when will the relay open? Dave. Quote Link to comment Share on other sites More sharing options...
LandyManLuke Posted May 23, 2008 Share Posted May 23, 2008 Just to clarify on terms. relay 'open' and 'closed' are the opposite to, say, a plumbing/gas valve. relay closed = current flow relay open = no current flow The relay will close when you have a 12v circuit supplying the solenoid in the relay (the two small terminals). When the relay closes and opens depends on how you've wired it up. If you've used the warning light circuit on the alternator the relay will close/activate as the warning light goes out. if you've used an ignition supply it'll close/activate when the ignition is on. In both cases, it should open/deactivate when the ignition is turned off. Quote Link to comment Share on other sites More sharing options...
jcwcooper Posted May 23, 2008 Author Share Posted May 23, 2008 Im not the best with electrics Ive wired it up using the warning light on the alternator so i take it if ive read right.........when the Light goes out the AUX battery will start to charge? Thanks Dave. Quote Link to comment Share on other sites More sharing options...
LandyManLuke Posted May 23, 2008 Share Posted May 23, 2008 yup, should do. Quote Link to comment Share on other sites More sharing options...
jcwcooper Posted May 23, 2008 Author Share Posted May 23, 2008 brilliant thanks for that......one more thing does it charge the main battery at the same time. Thanks Dave. Quote Link to comment Share on other sites More sharing options...
Bull Bar Cowboy Posted May 23, 2008 Share Posted May 23, 2008 Yes, that will be charged regardless of the split charge relay ............... Ian Quote Link to comment Share on other sites More sharing options...
jcwcooper Posted May 23, 2008 Author Share Posted May 23, 2008 Thanks for your help. Dave. Quote Link to comment Share on other sites More sharing options...
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