They isolate the start and aux batteries and, during operation, simultaneously allow the aux battery to be charged by an external source, like solar! So, if you have solar panels, opt for the SBI12D or SBI24D (the other specs remain the same as the previous models). To utilise these external power sources, Redarc has created awesome dual-sensing battery isolator models. Now, having said that, the game changes a bit if you’re going to be using solar, or another external-charging source like an AC battery charger. If you need to power fridges, freezers, televisions, etc, then the 24V Redarc Battery Isolator (SBI24) is your best bet!
These 100A models are SBI12 and SBI24, with the only difference being the turn-on and turn-off voltage – do you need a direct current of 12 or 24 volts? If you only want to power small appliances, such as lights, then the 12V Redarc Battery Isolator (SBI12) will be right for you.
If your answer is that you’re just needing the battery isolator for 4WD, camping, caravanning, RV, or marine applications – or anything else with a similar load – then one of the 100A continuous-rating dual battery isolator models will suit your requirements perfectly. Located within the kit, the Smart Battery Isolator prevents your cranking battery from dipping below 12.8 volts, ensuring you always have enough charge to. Choosing the right Redarc battery isolator is pretty simple, you just need to ask yourself one question: what am I using my new Redarc battery isolator for?
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