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Campers, Vans & 4WD's
Solar Panels - Information and Questions
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<blockquote data-quote="user 7268" data-source="post: 432633" data-attributes="member: 7268"><p><strong>through some sort of smart switch</strong></p><p>Simply .................. what is this switch ? If it's simply an isolator then you would be best to swap it out with a unit like a Projecta idc25 which has an MPPT controller built in and will also allow your alternator to fully charge you battery. If you only have an isolator fitted then your vehicle alternator will NEVER fully charge a deep cycle as it just doesn't put out enough voltage to do so. Probably around 80% at best. By fitting a DC DC controller at least you can utilise your deep cycle battery to its max plus also add some fold out solar panels later to the system if you wish ? You would probably struggle for a 100 amp battery to supply power for 3 days to an 80 litre, but many things come into effect regards this. Outside temps, how often the fridge is opened and closed, how full it is etc etc </p><p>Also if you fridge has a high and low cut out option select high otherwise it will probably take battery (deep cycle) below recommended discharge level and eventually damage it. </p><p></p><p>Just a footnote regards Projecta IDC25 ................ they list power in as 9 volt to 32 volt input BUT only 23 volt solar input </p><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/7268/1534233272_idc.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/7268/1534232679_simples.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="user 7268, post: 432633, member: 7268"] [b]through some sort of smart switch[/b] Simply .................. what is this switch ? If it's simply an isolator then you would be best to swap it out with a unit like a Projecta idc25 which has an MPPT controller built in and will also allow your alternator to fully charge you battery. If you only have an isolator fitted then your vehicle alternator will NEVER fully charge a deep cycle as it just doesn't put out enough voltage to do so. Probably around 80% at best. By fitting a DC DC controller at least you can utilise your deep cycle battery to its max plus also add some fold out solar panels later to the system if you wish ? You would probably struggle for a 100 amp battery to supply power for 3 days to an 80 litre, but many things come into effect regards this. Outside temps, how often the fridge is opened and closed, how full it is etc etc Also if you fridge has a high and low cut out option select high otherwise it will probably take battery (deep cycle) below recommended discharge level and eventually damage it. Just a footnote regards Projecta IDC25 ................ they list power in as 9 volt to 32 volt input BUT only 23 volt solar input [img]https://www.prospectingaustralia.com/forum/img/member-images/7268/1534233272_idc.jpg[/img] [img]https://www.prospectingaustralia.com/forum/img/member-images/7268/1534232679_simples.jpg[/img] [/QUOTE]
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Outdoor & Recreation
Campers, Vans & 4WD's
Solar Panels - Information and Questions
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