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Old 03-20-2017, 05:29 AM
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Redarc Battery Isolators and GC Smart Alternator

Hi,

Anyone using a Redarc battery Isolator with their GC ? Mine is failing to turn on at battery voltage with engine running I measure as 13.16v which is under teh Redarc turn on volts of 13.2v

I have GC 2014 and the SBI12 isolator, I'm using it for the feed to an Anderson which feeds to a camper trailer with a battery manager so that manages the DC to DC boost to charge the trailer batteries.

thanks.

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Old 03-20-2017, 07:06 AM
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Re: Redarc Battery Isolators and GC Smart Alternator

It sucks because they are expensive but you want something which is switched via an ignition signal to charge rather than relying on voltage which varies.

Alternatively can have a high amp switched relay installed by an auto electrician with an over-ride switch to disable in the cabin?
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Old 03-20-2017, 08:33 AM
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Re: Redarc Battery Isolators and GC Smart Alternator

Reading through the manual, the limit can be changed at manufacting time..... not good now.

You should be getting better than 13.16v if using good cable and conections ???

The quickest fix would be to wire the blue wire (override) to a switched power circuit. This would force the unit to turn on when the GC is in RUN mode.

Alternatively, put the DC-DC convertor before the isolator. This will bump up the voltage and the isolator shouldn't switch off when the convertor has charged the battery and goes into float charge (AGM 13.2V).
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Old 03-20-2017, 05:29 PM
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Re: Redarc Battery Isolators and GC Smart Alternator

Thanks Guys, yes spoke to Redarc and they said the auto electrician should never have used that SBI with a smart alternator system.

I'm going to wire in the override as Mozzie suggested either to an ignition switched lead or just have the push button override on my dash with the indicator LED so I know what its doing.

I would have thought the auto electrician should have known this
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