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osullipe
osullipe

Posted: Wed Sep 19, 2012 4:57pm

Post Subject: Solar cell trickle feed over winter

I have 5 x110 amp domestic batteries and 1 x 120amp battery. I have to return to Australia for 3 months from start of December and am considering solar cells to preserve battery life during this time. What size do I need and do I need two - one for domestic and one for starter?

Tony-B
Tony-B

Posted: Wed Sep 19, 2012 6:49pm

Post Subject: Solar cell trickle feed over winter

I would suggest that you invest in a QUALITY solar regulator that has two outputs (beware of apparent Ebay type bargains). Ideally an MPPT one but for your use I am sure PWM ones will do just as well. I find 60 watts or panel enough to recharge a 330Ah bank from maybe half discharged and then keep them charged over the winter so I would suggest anything over 100 watts but if you make sure the bank is more or less fully charged before you leave then 40 to 60 watts should be OK. Tony Brooks

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