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Outdoor & Recreation
Campers, Vans & 4WD's
Triple battery system question?
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<blockquote data-quote="blisters" data-source="post: 250536" data-attributes="member: 4992"><p>Charging disparate capacity batteries using smart chargers will cook the smaller battery so to use dc-dc chargers you'd have to get another charger for the 120a battery or get a multi output dc-dc charger. If your alternator is the normal regulated type you could get away with a FET isolator which would be a much cheaper option and charge the 120a battery in parallel with the starter battery off the alternator. The isolator will prevent one battery equalising with the other.</p><p>Jon</p></blockquote><p></p>
[QUOTE="blisters, post: 250536, member: 4992"] Charging disparate capacity batteries using smart chargers will cook the smaller battery so to use dc-dc chargers you'd have to get another charger for the 120a battery or get a multi output dc-dc charger. If your alternator is the normal regulated type you could get away with a FET isolator which would be a much cheaper option and charge the 120a battery in parallel with the starter battery off the alternator. The isolator will prevent one battery equalising with the other. Jon [/QUOTE]
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Outdoor & Recreation
Campers, Vans & 4WD's
Triple battery system question?
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